Memory updates: corrections, email triage, heartbeat state

- Updated corrections.md with config validation principles
- Email triage rules and logs
- Infrastructure ownership documentation
- Daily memory files through Feb 1
- Heartbeat state tracking

.clawdhub/lock.json

@@ -0,0 +1,9 @@
+{
+  "version": 1,
+  "skills": {
+    "homeassistant": {
+      "version": "1.0.0",
+      "installedAt": 1769414031023
+    }
+  }
+}

.venv/bin/Activate.ps1

@@ -0,0 +1,247 @@
+<#
+.Synopsis
+Activate a Python virtual environment for the current PowerShell session.
+
+.Description
+Pushes the python executable for a virtual environment to the front of the
+$Env:PATH environment variable and sets the prompt to signify that you are
+in a Python virtual environment. Makes use of the command line switches as
+well as the `pyvenv.cfg` file values present in the virtual environment.
+
+.Parameter VenvDir
+Path to the directory that contains the virtual environment to activate. The
+default value for this is the parent of the directory that the Activate.ps1
+script is located within.
+
+.Parameter Prompt
+The prompt prefix to display when this virtual environment is activated. By
+default, this prompt is the name of the virtual environment folder (VenvDir)
+surrounded by parentheses and followed by a single space (ie. '(.venv) ').
+
+.Example
+Activate.ps1
+Activates the Python virtual environment that contains the Activate.ps1 script.
+
+.Example
+Activate.ps1 -Verbose
+Activates the Python virtual environment that contains the Activate.ps1 script,
+and shows extra information about the activation as it executes.
+
+.Example
+Activate.ps1 -VenvDir C:\Users\MyUser\Common\.venv
+Activates the Python virtual environment located in the specified location.
+
+.Example
+Activate.ps1 -Prompt "MyPython"
+Activates the Python virtual environment that contains the Activate.ps1 script,
+and prefixes the current prompt with the specified string (surrounded in
+parentheses) while the virtual environment is active.
+
+.Notes
+On Windows, it may be required to enable this Activate.ps1 script by setting the
+execution policy for the user. You can do this by issuing the following PowerShell
+command:
+
+PS C:\> Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
+
+For more information on Execution Policies: 
+https://go.microsoft.com/fwlink/?LinkID=135170
+
+#>
+Param(
+    [Parameter(Mandatory = $false)]
+    [String]
+    $VenvDir,
+    [Parameter(Mandatory = $false)]
+    [String]
+    $Prompt
+)
+
+<# Function declarations --------------------------------------------------- #>
+
+<#
+.Synopsis
+Remove all shell session elements added by the Activate script, including the
+addition of the virtual environment's Python executable from the beginning of
+the PATH variable.
+
+.Parameter NonDestructive
+If present, do not remove this function from the global namespace for the
+session.
+
+#>
+function global:deactivate ([switch]$NonDestructive) {
+    # Revert to original values
+
+    # The prior prompt:
+    if (Test-Path -Path Function:_OLD_VIRTUAL_PROMPT) {
+        Copy-Item -Path Function:_OLD_VIRTUAL_PROMPT -Destination Function:prompt
+        Remove-Item -Path Function:_OLD_VIRTUAL_PROMPT
+    }
+
+    # The prior PYTHONHOME:
+    if (Test-Path -Path Env:_OLD_VIRTUAL_PYTHONHOME) {
+        Copy-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME -Destination Env:PYTHONHOME
+        Remove-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME
+    }
+
+    # The prior PATH:
+    if (Test-Path -Path Env:_OLD_VIRTUAL_PATH) {
+        Copy-Item -Path Env:_OLD_VIRTUAL_PATH -Destination Env:PATH
+        Remove-Item -Path Env:_OLD_VIRTUAL_PATH
+    }
+
+    # Just remove the VIRTUAL_ENV altogether:
+    if (Test-Path -Path Env:VIRTUAL_ENV) {
+        Remove-Item -Path env:VIRTUAL_ENV
+    }
+
+    # Just remove VIRTUAL_ENV_PROMPT altogether.
+    if (Test-Path -Path Env:VIRTUAL_ENV_PROMPT) {
+        Remove-Item -Path env:VIRTUAL_ENV_PROMPT
+    }
+
+    # Just remove the _PYTHON_VENV_PROMPT_PREFIX altogether:
+    if (Get-Variable -Name "_PYTHON_VENV_PROMPT_PREFIX" -ErrorAction SilentlyContinue) {
+        Remove-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Scope Global -Force
+    }
+
+    # Leave deactivate function in the global namespace if requested:
+    if (-not $NonDestructive) {
+        Remove-Item -Path function:deactivate
+    }
+}
+
+<#
+.Description
+Get-PyVenvConfig parses the values from the pyvenv.cfg file located in the
+given folder, and returns them in a map.
+
+For each line in the pyvenv.cfg file, if that line can be parsed into exactly
+two strings separated by `=` (with any amount of whitespace surrounding the =)
+then it is considered a `key = value` line. The left hand string is the key,
+the right hand is the value.
+
+If the value starts with a `'` or a `"` then the first and last character is
+stripped from the value before being captured.
+
+.Parameter ConfigDir
+Path to the directory that contains the `pyvenv.cfg` file.
+#>
+function Get-PyVenvConfig(
+    [String]
+    $ConfigDir
+) {
+    Write-Verbose "Given ConfigDir=$ConfigDir, obtain values in pyvenv.cfg"
+
+    # Ensure the file exists, and issue a warning if it doesn't (but still allow the function to continue).
+    $pyvenvConfigPath = Join-Path -Resolve -Path $ConfigDir -ChildPath 'pyvenv.cfg' -ErrorAction Continue
+
+    # An empty map will be returned if no config file is found.
+    $pyvenvConfig = @{ }
+
+    if ($pyvenvConfigPath) {
+
+        Write-Verbose "File exists, parse `key = value` lines"
+        $pyvenvConfigContent = Get-Content -Path $pyvenvConfigPath
+
+        $pyvenvConfigContent | ForEach-Object {
+            $keyval = $PSItem -split "\s*=\s*", 2
+            if ($keyval[0] -and $keyval[1]) {
+                $val = $keyval[1]
+
+                # Remove extraneous quotations around a string value.
+                if ("'""".Contains($val.Substring(0, 1))) {
+                    $val = $val.Substring(1, $val.Length - 2)
+                }
+
+                $pyvenvConfig[$keyval[0]] = $val
+                Write-Verbose "Adding Key: '$($keyval[0])'='$val'"
+            }
+        }
+    }
+    return $pyvenvConfig
+}
+
+
+<# Begin Activate script --------------------------------------------------- #>
+
+# Determine the containing directory of this script
+$VenvExecPath = Split-Path -Parent $MyInvocation.MyCommand.Definition
+$VenvExecDir = Get-Item -Path $VenvExecPath
+
+Write-Verbose "Activation script is located in path: '$VenvExecPath'"
+Write-Verbose "VenvExecDir Fullname: '$($VenvExecDir.FullName)"
+Write-Verbose "VenvExecDir Name: '$($VenvExecDir.Name)"
+
+# Set values required in priority: CmdLine, ConfigFile, Default
+# First, get the location of the virtual environment, it might not be
+# VenvExecDir if specified on the command line.
+if ($VenvDir) {
+    Write-Verbose "VenvDir given as parameter, using '$VenvDir' to determine values"
+}
+else {
+    Write-Verbose "VenvDir not given as a parameter, using parent directory name as VenvDir."
+    $VenvDir = $VenvExecDir.Parent.FullName.TrimEnd("\\/")
+    Write-Verbose "VenvDir=$VenvDir"
+}
+
+# Next, read the `pyvenv.cfg` file to determine any required value such
+# as `prompt`.
+$pyvenvCfg = Get-PyVenvConfig -ConfigDir $VenvDir
+
+# Next, set the prompt from the command line, or the config file, or
+# just use the name of the virtual environment folder.
+if ($Prompt) {
+    Write-Verbose "Prompt specified as argument, using '$Prompt'"
+}
+else {
+    Write-Verbose "Prompt not specified as argument to script, checking pyvenv.cfg value"
+    if ($pyvenvCfg -and $pyvenvCfg['prompt']) {
+        Write-Verbose "  Setting based on value in pyvenv.cfg='$($pyvenvCfg['prompt'])'"
+        $Prompt = $pyvenvCfg['prompt'];
+    }
+    else {
+        Write-Verbose "  Setting prompt based on parent's directory's name. (Is the directory name passed to venv module when creating the virtual environment)"
+        Write-Verbose "  Got leaf-name of $VenvDir='$(Split-Path -Path $venvDir -Leaf)'"
+        $Prompt = Split-Path -Path $venvDir -Leaf
+    }
+}
+
+Write-Verbose "Prompt = '$Prompt'"
+Write-Verbose "VenvDir='$VenvDir'"
+
+# Deactivate any currently active virtual environment, but leave the
+# deactivate function in place.
+deactivate -nondestructive
+
+# Now set the environment variable VIRTUAL_ENV, used by many tools to determine
+# that there is an activated venv.
+$env:VIRTUAL_ENV = $VenvDir
+
+if (-not $Env:VIRTUAL_ENV_DISABLE_PROMPT) {
+
+    Write-Verbose "Setting prompt to '$Prompt'"
+
+    # Set the prompt to include the env name
+    # Make sure _OLD_VIRTUAL_PROMPT is global
+    function global:_OLD_VIRTUAL_PROMPT { "" }
+    Copy-Item -Path function:prompt -Destination function:_OLD_VIRTUAL_PROMPT
+    New-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Description "Python virtual environment prompt prefix" -Scope Global -Option ReadOnly -Visibility Public -Value $Prompt
+
+    function global:prompt {
+        Write-Host -NoNewline -ForegroundColor Green "($_PYTHON_VENV_PROMPT_PREFIX) "
+        _OLD_VIRTUAL_PROMPT
+    }
+    $env:VIRTUAL_ENV_PROMPT = $Prompt
+}
+
+# Clear PYTHONHOME
+if (Test-Path -Path Env:PYTHONHOME) {
+    Copy-Item -Path Env:PYTHONHOME -Destination Env:_OLD_VIRTUAL_PYTHONHOME
+    Remove-Item -Path Env:PYTHONHOME
+}
+
+# Add the venv to the PATH
+Copy-Item -Path Env:PATH -Destination Env:_OLD_VIRTUAL_PATH
+$Env:PATH = "$VenvExecDir$([System.IO.Path]::PathSeparator)$Env:PATH"

.venv/bin/activate

@@ -0,0 +1,70 @@
+# This file must be used with "source bin/activate" *from bash*
+# You cannot run it directly
+
+deactivate () {
+    # reset old environment variables
+    if [ -n "${_OLD_VIRTUAL_PATH:-}" ] ; then
+        PATH="${_OLD_VIRTUAL_PATH:-}"
+        export PATH
+        unset _OLD_VIRTUAL_PATH
+    fi
+    if [ -n "${_OLD_VIRTUAL_PYTHONHOME:-}" ] ; then
+        PYTHONHOME="${_OLD_VIRTUAL_PYTHONHOME:-}"
+        export PYTHONHOME
+        unset _OLD_VIRTUAL_PYTHONHOME
+    fi
+
+    # Call hash to forget past commands. Without forgetting
+    # past commands the $PATH changes we made may not be respected
+    hash -r 2> /dev/null
+
+    if [ -n "${_OLD_VIRTUAL_PS1:-}" ] ; then
+        PS1="${_OLD_VIRTUAL_PS1:-}"
+        export PS1
+        unset _OLD_VIRTUAL_PS1
+    fi
+
+    unset VIRTUAL_ENV
+    unset VIRTUAL_ENV_PROMPT
+    if [ ! "${1:-}" = "nondestructive" ] ; then
+    # Self destruct!
+        unset -f deactivate
+    fi
+}
+
+# unset irrelevant variables
+deactivate nondestructive
+
+# on Windows, a path can contain colons and backslashes and has to be converted:
+if [ "${OSTYPE:-}" = "cygwin" ] || [ "${OSTYPE:-}" = "msys" ] ; then
+    # transform D:\path\to\venv to /d/path/to/venv on MSYS
+    # and to /cygdrive/d/path/to/venv on Cygwin
+    export VIRTUAL_ENV=$(cygpath /home/johan/clawd/.venv)
+else
+    # use the path as-is
+    export VIRTUAL_ENV=/home/johan/clawd/.venv
+fi
+
+_OLD_VIRTUAL_PATH="$PATH"
+PATH="$VIRTUAL_ENV/"bin":$PATH"
+export PATH
+
+# unset PYTHONHOME if set
+# this will fail if PYTHONHOME is set to the empty string (which is bad anyway)
+# could use `if (set -u; : $PYTHONHOME) ;` in bash
+if [ -n "${PYTHONHOME:-}" ] ; then
+    _OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME:-}"
+    unset PYTHONHOME
+fi
+
+if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then
+    _OLD_VIRTUAL_PS1="${PS1:-}"
+    PS1='(.venv) '"${PS1:-}"
+    export PS1
+    VIRTUAL_ENV_PROMPT='(.venv) '
+    export VIRTUAL_ENV_PROMPT
+fi
+
+# Call hash to forget past commands. Without forgetting
+# past commands the $PATH changes we made may not be respected
+hash -r 2> /dev/null

.venv/bin/activate.csh

@@ -0,0 +1,27 @@
+# This file must be used with "source bin/activate.csh" *from csh*.
+# You cannot run it directly.
+
+# Created by Davide Di Blasi <davidedb@gmail.com>.
+# Ported to Python 3.3 venv by Andrew Svetlov <andrew.svetlov@gmail.com>
+
+alias deactivate 'test $?_OLD_VIRTUAL_PATH != 0 && setenv PATH "$_OLD_VIRTUAL_PATH" && unset _OLD_VIRTUAL_PATH; rehash; test $?_OLD_VIRTUAL_PROMPT != 0 && set prompt="$_OLD_VIRTUAL_PROMPT" && unset _OLD_VIRTUAL_PROMPT; unsetenv VIRTUAL_ENV; unsetenv VIRTUAL_ENV_PROMPT; test "\!:*" != "nondestructive" && unalias deactivate'
+
+# Unset irrelevant variables.
+deactivate nondestructive
+
+setenv VIRTUAL_ENV /home/johan/clawd/.venv
+
+set _OLD_VIRTUAL_PATH="$PATH"
+setenv PATH "$VIRTUAL_ENV/"bin":$PATH"
+
+
+set _OLD_VIRTUAL_PROMPT="$prompt"
+
+if (! "$?VIRTUAL_ENV_DISABLE_PROMPT") then
+    set prompt = '(.venv) '"$prompt"
+    setenv VIRTUAL_ENV_PROMPT '(.venv) '
+endif
+
+alias pydoc python -m pydoc
+
+rehash

.venv/bin/activate.fish

@@ -0,0 +1,69 @@
+# This file must be used with "source <venv>/bin/activate.fish" *from fish*
+# (https://fishshell.com/). You cannot run it directly.
+
+function deactivate  -d "Exit virtual environment and return to normal shell environment"
+    # reset old environment variables
+    if test -n "$_OLD_VIRTUAL_PATH"
+        set -gx PATH $_OLD_VIRTUAL_PATH
+        set -e _OLD_VIRTUAL_PATH
+    end
+    if test -n "$_OLD_VIRTUAL_PYTHONHOME"
+        set -gx PYTHONHOME $_OLD_VIRTUAL_PYTHONHOME
+        set -e _OLD_VIRTUAL_PYTHONHOME
+    end
+
+    if test -n "$_OLD_FISH_PROMPT_OVERRIDE"
+        set -e _OLD_FISH_PROMPT_OVERRIDE
+        # prevents error when using nested fish instances (Issue #93858)
+        if functions -q _old_fish_prompt
+            functions -e fish_prompt
+            functions -c _old_fish_prompt fish_prompt
+            functions -e _old_fish_prompt
+        end
+    end
+
+    set -e VIRTUAL_ENV
+    set -e VIRTUAL_ENV_PROMPT
+    if test "$argv[1]" != "nondestructive"
+        # Self-destruct!
+        functions -e deactivate
+    end
+end
+
+# Unset irrelevant variables.
+deactivate nondestructive
+
+set -gx VIRTUAL_ENV /home/johan/clawd/.venv
+
+set -gx _OLD_VIRTUAL_PATH $PATH
+set -gx PATH "$VIRTUAL_ENV/"bin $PATH
+
+# Unset PYTHONHOME if set.
+if set -q PYTHONHOME
+    set -gx _OLD_VIRTUAL_PYTHONHOME $PYTHONHOME
+    set -e PYTHONHOME
+end
+
+if test -z "$VIRTUAL_ENV_DISABLE_PROMPT"
+    # fish uses a function instead of an env var to generate the prompt.
+
+    # Save the current fish_prompt function as the function _old_fish_prompt.
+    functions -c fish_prompt _old_fish_prompt
+
+    # With the original prompt function renamed, we can override with our own.
+    function fish_prompt
+        # Save the return status of the last command.
+        set -l old_status $status
+
+        # Output the venv prompt; color taken from the blue of the Python logo.
+        printf "%s%s%s" (set_color 4B8BBE) '(.venv) ' (set_color normal)
+
+        # Restore the return status of the previous command.
+        echo "exit $old_status" | .
+        # Output the original/"old" prompt.
+        _old_fish_prompt
+    end
+
+    set -gx _OLD_FISH_PROMPT_OVERRIDE "$VIRTUAL_ENV"
+    set -gx VIRTUAL_ENV_PROMPT '(.venv) '
+end

.venv/bin/curl-cffi

@@ -0,0 +1,8 @@
+#!/home/johan/clawd/.venv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+from curl_cffi.cli import main
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())

.venv/bin/pip

@@ -0,0 +1,8 @@
+#!/home/johan/clawd/.venv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+from pip._internal.cli.main import main
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())

.venv/bin/pip3

@@ -0,0 +1,8 @@
+#!/home/johan/clawd/.venv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+from pip._internal.cli.main import main
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())

.venv/bin/pip3.12

@@ -0,0 +1,8 @@
+#!/home/johan/clawd/.venv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+from pip._internal.cli.main import main
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())

.venv/bin/python

@@ -0,0 +1 @@
+python3

.venv/bin/python3

@@ -0,0 +1 @@
+/usr/bin/python3

.venv/bin/python3.12

@@ -0,0 +1 @@
+python3

.venv/lib/python3.12/site-packages/certifi-2026.1.4.dist-info/INSTALLER

@@ -0,0 +1 @@
+pip

.venv/lib/python3.12/site-packages/certifi-2026.1.4.dist-info/METADATA

@@ -0,0 +1,78 @@
+Metadata-Version: 2.4
+Name: certifi
+Version: 2026.1.4
+Summary: Python package for providing Mozilla's CA Bundle.
+Home-page: https://github.com/certifi/python-certifi
+Author: Kenneth Reitz
+Author-email: me@kennethreitz.com
+License: MPL-2.0
+Project-URL: Source, https://github.com/certifi/python-certifi
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)
+Classifier: Natural Language :: English
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3 :: Only
+Classifier: Programming Language :: Python :: 3.7
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: 3.13
+Classifier: Programming Language :: Python :: 3.14
+Requires-Python: >=3.7
+License-File: LICENSE
+Dynamic: author
+Dynamic: author-email
+Dynamic: classifier
+Dynamic: description
+Dynamic: home-page
+Dynamic: license
+Dynamic: license-file
+Dynamic: project-url
+Dynamic: requires-python
+Dynamic: summary
+
+Certifi: Python SSL Certificates
+================================
+
+Certifi provides Mozilla's carefully curated collection of Root Certificates for
+validating the trustworthiness of SSL certificates while verifying the identity
+of TLS hosts. It has been extracted from the `Requests`_ project.
+
+Installation
+------------
+
+``certifi`` is available on PyPI. Simply install it with ``pip``::
+
+    $ pip install certifi
+
+Usage
+-----
+
+To reference the installed certificate authority (CA) bundle, you can use the
+built-in function::
+
+    >>> import certifi
+
+    >>> certifi.where()
+    '/usr/local/lib/python3.7/site-packages/certifi/cacert.pem'
+
+Or from the command line::
+
+    $ python -m certifi
+    /usr/local/lib/python3.7/site-packages/certifi/cacert.pem
+
+Enjoy!
+
+.. _`Requests`: https://requests.readthedocs.io/en/master/
+
+Addition/Removal of Certificates
+--------------------------------
+
+Certifi does not support any addition/removal or other modification of the
+CA trust store content. This project is intended to provide a reliable and
+highly portable root of trust to python deployments. Look to upstream projects
+for methods to use alternate trust.

.venv/lib/python3.12/site-packages/certifi-2026.1.4.dist-info/RECORD

@@ -0,0 +1,14 @@
+certifi-2026.1.4.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+certifi-2026.1.4.dist-info/METADATA,sha256=FSfJEfKuMo6bJlofUrtRpn4PFTYtbYyXpHN_A3ZFpIY,2473
+certifi-2026.1.4.dist-info/RECORD,,
+certifi-2026.1.4.dist-info/WHEEL,sha256=_zCd3N1l69ArxyTb8rzEoP9TpbYXkqRFSNOD5OuxnTs,91
+certifi-2026.1.4.dist-info/licenses/LICENSE,sha256=6TcW2mucDVpKHfYP5pWzcPBpVgPSH2-D8FPkLPwQyvc,989
+certifi-2026.1.4.dist-info/top_level.txt,sha256=KMu4vUCfsjLrkPbSNdgdekS-pVJzBAJFO__nI8NF6-U,8
+certifi/__init__.py,sha256=969deMMS7Uchipr0oO4dbRBUvRi0uNYCn07VmG1aTrg,94
+certifi/__main__.py,sha256=xBBoj905TUWBLRGANOcf7oi6e-3dMP4cEoG9OyMs11g,243
+certifi/__pycache__/__init__.cpython-312.pyc,,
+certifi/__pycache__/__main__.cpython-312.pyc,,
+certifi/__pycache__/core.cpython-312.pyc,,
+certifi/cacert.pem,sha256=Tzl1_zCrvzVEO0hgZK6Ly0Hf9wf_31dsdtKS-0WKoKk,270954
+certifi/core.py,sha256=XFXycndG5pf37ayeF8N32HUuDafsyhkVMbO4BAPWHa0,3394
+certifi/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0

.venv/lib/python3.12/site-packages/certifi-2026.1.4.dist-info/WHEEL

@@ -0,0 +1,5 @@
+Wheel-Version: 1.0
+Generator: setuptools (80.9.0)
+Root-Is-Purelib: true
+Tag: py3-none-any
+

.venv/lib/python3.12/site-packages/certifi-2026.1.4.dist-info/licenses/LICENSE

@@ -0,0 +1,20 @@
+This package contains a modified version of ca-bundle.crt:
+
+ca-bundle.crt -- Bundle of CA Root Certificates
+
+This is a bundle of X.509 certificates of public Certificate Authorities
+(CA). These were automatically extracted from Mozilla's root certificates
+file (certdata.txt).  This file can be found in the mozilla source tree:
+https://hg.mozilla.org/mozilla-central/file/tip/security/nss/lib/ckfw/builtins/certdata.txt
+It contains the certificates in PEM format and therefore
+can be directly used with curl / libcurl / php_curl, or with
+an Apache+mod_ssl webserver for SSL client authentication.
+Just configure this file as the SSLCACertificateFile.#
+
+***** BEGIN LICENSE BLOCK *****
+This Source Code Form is subject to the terms of the Mozilla Public License,
+v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain
+one at http://mozilla.org/MPL/2.0/.
+
+***** END LICENSE BLOCK *****
+@(#) $RCSfile: certdata.txt,v $ $Revision: 1.80 $ $Date: 2011/11/03 15:11:58 $

.venv/lib/python3.12/site-packages/certifi-2026.1.4.dist-info/top_level.txt

@@ -0,0 +1 @@
+certifi

.venv/lib/python3.12/site-packages/certifi/__init__.py

@@ -0,0 +1,4 @@
+from .core import contents, where
+
+__all__ = ["contents", "where"]
+__version__ = "2026.01.04"

.venv/lib/python3.12/site-packages/certifi/__main__.py

@@ -0,0 +1,12 @@
+import argparse
+
+from certifi import contents, where
+
+parser = argparse.ArgumentParser()
+parser.add_argument("-c", "--contents", action="store_true")
+args = parser.parse_args()
+
+if args.contents:
+    print(contents())
+else:
+    print(where())

.venv/lib/python3.12/site-packages/certifi/core.py

@@ -0,0 +1,83 @@
+"""
+certifi.py
+~~~~~~~~~~
+
+This module returns the installation location of cacert.pem or its contents.
+"""
+import sys
+import atexit
+
+def exit_cacert_ctx() -> None:
+    _CACERT_CTX.__exit__(None, None, None)  # type: ignore[union-attr]
+
+
+if sys.version_info >= (3, 11):
+
+    from importlib.resources import as_file, files
+
+    _CACERT_CTX = None
+    _CACERT_PATH = None
+
+    def where() -> str:
+        # This is slightly terrible, but we want to delay extracting the file
+        # in cases where we're inside of a zipimport situation until someone
+        # actually calls where(), but we don't want to re-extract the file
+        # on every call of where(), so we'll do it once then store it in a
+        # global variable.
+        global _CACERT_CTX
+        global _CACERT_PATH
+        if _CACERT_PATH is None:
+            # This is slightly janky, the importlib.resources API wants you to
+            # manage the cleanup of this file, so it doesn't actually return a
+            # path, it returns a context manager that will give you the path
+            # when you enter it and will do any cleanup when you leave it. In
+            # the common case of not needing a temporary file, it will just
+            # return the file system location and the __exit__() is a no-op.
+            #
+            # We also have to hold onto the actual context manager, because
+            # it will do the cleanup whenever it gets garbage collected, so
+            # we will also store that at the global level as well.
+            _CACERT_CTX = as_file(files("certifi").joinpath("cacert.pem"))
+            _CACERT_PATH = str(_CACERT_CTX.__enter__())
+            atexit.register(exit_cacert_ctx)
+
+        return _CACERT_PATH
+
+    def contents() -> str:
+        return files("certifi").joinpath("cacert.pem").read_text(encoding="ascii")
+
+else:
+
+    from importlib.resources import path as get_path, read_text
+
+    _CACERT_CTX = None
+    _CACERT_PATH = None
+
+    def where() -> str:
+        # This is slightly terrible, but we want to delay extracting the
+        # file in cases where we're inside of a zipimport situation until
+        # someone actually calls where(), but we don't want to re-extract
+        # the file on every call of where(), so we'll do it once then store
+        # it in a global variable.
+        global _CACERT_CTX
+        global _CACERT_PATH
+        if _CACERT_PATH is None:
+            # This is slightly janky, the importlib.resources API wants you
+            # to manage the cleanup of this file, so it doesn't actually
+            # return a path, it returns a context manager that will give
+            # you the path when you enter it and will do any cleanup when
+            # you leave it. In the common case of not needing a temporary
+            # file, it will just return the file system location and the
+            # __exit__() is a no-op.
+            #
+            # We also have to hold onto the actual context manager, because
+            # it will do the cleanup whenever it gets garbage collected, so
+            # we will also store that at the global level as well.
+            _CACERT_CTX = get_path("certifi", "cacert.pem")
+            _CACERT_PATH = str(_CACERT_CTX.__enter__())
+            atexit.register(exit_cacert_ctx)
+
+        return _CACERT_PATH
+
+    def contents() -> str:
+        return read_text("certifi", "cacert.pem", encoding="ascii")

.venv/lib/python3.12/site-packages/cffi-2.0.0.dist-info/INSTALLER

@@ -0,0 +1 @@
+pip

.venv/lib/python3.12/site-packages/cffi-2.0.0.dist-info/METADATA

@@ -0,0 +1,68 @@
+Metadata-Version: 2.4
+Name: cffi
+Version: 2.0.0
+Summary: Foreign Function Interface for Python calling C code.
+Author: Armin Rigo, Maciej Fijalkowski
+Maintainer: Matt Davis, Matt Clay, Matti Picus
+License-Expression: MIT
+Project-URL: Documentation, https://cffi.readthedocs.io/
+Project-URL: Changelog, https://cffi.readthedocs.io/en/latest/whatsnew.html
+Project-URL: Downloads, https://github.com/python-cffi/cffi/releases
+Project-URL: Contact, https://groups.google.com/forum/#!forum/python-cffi
+Project-URL: Source Code, https://github.com/python-cffi/cffi
+Project-URL: Issue Tracker, https://github.com/python-cffi/cffi/issues
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: 3.13
+Classifier: Programming Language :: Python :: 3.14
+Classifier: Programming Language :: Python :: Free Threading :: 2 - Beta
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Requires-Python: >=3.9
+Description-Content-Type: text/markdown
+License-File: LICENSE
+License-File: AUTHORS
+Requires-Dist: pycparser; implementation_name != "PyPy"
+Dynamic: license-file
+
+[![GitHub Actions Status](https://github.com/python-cffi/cffi/actions/workflows/ci.yaml/badge.svg?branch=main)](https://github.com/python-cffi/cffi/actions/workflows/ci.yaml?query=branch%3Amain++)
+[![PyPI version](https://img.shields.io/pypi/v/cffi.svg)](https://pypi.org/project/cffi)
+[![Read the Docs](https://img.shields.io/badge/docs-latest-blue.svg)][Documentation]
+
+
+CFFI
+====
+
+Foreign Function Interface for Python calling C code.
+
+Please see the [Documentation] or uncompiled in the `doc/` subdirectory.
+
+Download
+--------
+
+[Download page](https://github.com/python-cffi/cffi/releases)
+
+Source Code
+-----------
+
+Source code is publicly available on
+[GitHub](https://github.com/python-cffi/cffi).
+
+Contact
+-------
+
+[Mailing list](https://groups.google.com/forum/#!forum/python-cffi)
+
+Testing/development tips
+------------------------
+
+After `git clone` or `wget && tar`, we will get a directory called `cffi` or `cffi-x.x.x`. we call it `repo-directory`. To run tests under CPython, run the following in the `repo-directory`:
+
+    pip install pytest
+    pip install -e .  # editable install of CFFI for local development
+    pytest src/c/ testing/
+
+[Documentation]: http://cffi.readthedocs.org/

.venv/lib/python3.12/site-packages/cffi-2.0.0.dist-info/RECORD

@@ -0,0 +1,49 @@
+_cffi_backend.cpython-312-x86_64-linux-gnu.so,sha256=AGLtw5fn9u4Cmwk3BbGlsXG7VZEvQekABMyEGuRZmcE,348808
+cffi-2.0.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+cffi-2.0.0.dist-info/METADATA,sha256=uYzn40F68Im8EtXHNBLZs7FoPM-OxzyYbDWsjJvhujk,2559
+cffi-2.0.0.dist-info/RECORD,,
+cffi-2.0.0.dist-info/WHEEL,sha256=aSgG0F4rGPZtV0iTEIfy6dtHq6g67Lze3uLfk0vWn88,151
+cffi-2.0.0.dist-info/entry_points.txt,sha256=y6jTxnyeuLnL-XJcDv8uML3n6wyYiGRg8MTp_QGJ9Ho,75
+cffi-2.0.0.dist-info/licenses/AUTHORS,sha256=KmemC7-zN1nWfWRf8TG45ta8TK_CMtdR_Kw-2k0xTMg,208
+cffi-2.0.0.dist-info/licenses/LICENSE,sha256=W6JN3FcGf5JJrdZEw6_EGl1tw34jQz73Wdld83Cwr2M,1123
+cffi-2.0.0.dist-info/top_level.txt,sha256=rE7WR3rZfNKxWI9-jn6hsHCAl7MDkB-FmuQbxWjFehQ,19
+cffi/__init__.py,sha256=-ksBQ7MfDzVvbBlV_ftYBWAmEqfA86ljIzMxzaZeAlI,511
+cffi/__pycache__/__init__.cpython-312.pyc,,
+cffi/__pycache__/_imp_emulation.cpython-312.pyc,,
+cffi/__pycache__/_shimmed_dist_utils.cpython-312.pyc,,
+cffi/__pycache__/api.cpython-312.pyc,,
+cffi/__pycache__/backend_ctypes.cpython-312.pyc,,
+cffi/__pycache__/cffi_opcode.cpython-312.pyc,,
+cffi/__pycache__/commontypes.cpython-312.pyc,,
+cffi/__pycache__/cparser.cpython-312.pyc,,
+cffi/__pycache__/error.cpython-312.pyc,,
+cffi/__pycache__/ffiplatform.cpython-312.pyc,,
+cffi/__pycache__/lock.cpython-312.pyc,,
+cffi/__pycache__/model.cpython-312.pyc,,
+cffi/__pycache__/pkgconfig.cpython-312.pyc,,
+cffi/__pycache__/recompiler.cpython-312.pyc,,
+cffi/__pycache__/setuptools_ext.cpython-312.pyc,,
+cffi/__pycache__/vengine_cpy.cpython-312.pyc,,
+cffi/__pycache__/vengine_gen.cpython-312.pyc,,
+cffi/__pycache__/verifier.cpython-312.pyc,,
+cffi/_cffi_errors.h,sha256=zQXt7uR_m8gUW-fI2hJg0KoSkJFwXv8RGUkEDZ177dQ,3908
+cffi/_cffi_include.h,sha256=Exhmgm9qzHWzWivjfTe0D7Xp4rPUkVxdNuwGhMTMzbw,15055
+cffi/_embedding.h,sha256=Ai33FHblE7XSpHOCp8kPcWwN5_9BV14OvN0JVa6ITpw,18786
+cffi/_imp_emulation.py,sha256=RxREG8zAbI2RPGBww90u_5fi8sWdahpdipOoPzkp7C0,2960
+cffi/_shimmed_dist_utils.py,sha256=Bjj2wm8yZbvFvWEx5AEfmqaqZyZFhYfoyLLQHkXZuao,2230
+cffi/api.py,sha256=alBv6hZQkjpmZplBphdaRn2lPO9-CORs_M7ixabvZWI,42169
+cffi/backend_ctypes.py,sha256=h5ZIzLc6BFVXnGyc9xPqZWUS7qGy7yFSDqXe68Sa8z4,42454
+cffi/cffi_opcode.py,sha256=JDV5l0R0_OadBX_uE7xPPTYtMdmpp8I9UYd6av7aiDU,5731
+cffi/commontypes.py,sha256=7N6zPtCFlvxXMWhHV08psUjdYIK2XgsN3yo5dgua_v4,2805
+cffi/cparser.py,sha256=QUTfmlL-aO-MYR8bFGlvAUHc36OQr7XYLe0WLkGFjRo,44790
+cffi/error.py,sha256=v6xTiS4U0kvDcy4h_BDRo5v39ZQuj-IMRYLv5ETddZs,877
+cffi/ffiplatform.py,sha256=avxFjdikYGJoEtmJO7ewVmwG_VEVl6EZ_WaNhZYCqv4,3584
+cffi/lock.py,sha256=l9TTdwMIMpi6jDkJGnQgE9cvTIR7CAntIJr8EGHt3pY,747
+cffi/model.py,sha256=W30UFQZE73jL5Mx5N81YT77us2W2iJjTm0XYfnwz1cg,21797
+cffi/parse_c_type.h,sha256=OdwQfwM9ktq6vlCB43exFQmxDBtj2MBNdK8LYl15tjw,5976
+cffi/pkgconfig.py,sha256=LP1w7vmWvmKwyqLaU1Z243FOWGNQMrgMUZrvgFuOlco,4374
+cffi/recompiler.py,sha256=78J6lMEEOygXNmjN9-fOFFO3j7eW-iFxSrxfvQb54bY,65509
+cffi/setuptools_ext.py,sha256=0rCwBJ1W7FHWtiMKfNXsSST88V8UXrui5oeXFlDNLG8,9411
+cffi/vengine_cpy.py,sha256=oyQKD23kpE0aChUKA8Jg0e723foPiYzLYEdb-J0MiNs,43881
+cffi/vengine_gen.py,sha256=DUlEIrDiVin1Pnhn1sfoamnS5NLqfJcOdhRoeSNeJRg,26939
+cffi/verifier.py,sha256=oX8jpaohg2Qm3aHcznidAdvrVm5N4sQYG0a3Eo5mIl4,11182

.venv/lib/python3.12/site-packages/cffi-2.0.0.dist-info/WHEEL

@@ -0,0 +1,6 @@
+Wheel-Version: 1.0
+Generator: setuptools (80.9.0)
+Root-Is-Purelib: false
+Tag: cp312-cp312-manylinux_2_17_x86_64
+Tag: cp312-cp312-manylinux2014_x86_64
+

.venv/lib/python3.12/site-packages/cffi-2.0.0.dist-info/entry_points.txt

@@ -0,0 +1,2 @@
+[distutils.setup_keywords]
+cffi_modules = cffi.setuptools_ext:cffi_modules

.venv/lib/python3.12/site-packages/cffi-2.0.0.dist-info/licenses/AUTHORS

@@ -0,0 +1,8 @@
+This package has been mostly done by Armin Rigo with help from
+Maciej Fijałkowski. The idea is heavily based (although not directly
+copied) from LuaJIT ffi by Mike Pall.
+
+
+Other contributors:
+
+  Google Inc.

.venv/lib/python3.12/site-packages/cffi-2.0.0.dist-info/licenses/LICENSE

@@ -0,0 +1,23 @@
+
+Except when otherwise stated (look for LICENSE files in directories or
+information at the beginning of each file) all software and
+documentation is licensed as follows: 
+
+    MIT No Attribution
+
+    Permission is hereby granted, free of charge, to any person 
+    obtaining a copy of this software and associated documentation 
+    files (the "Software"), to deal in the Software without 
+    restriction, including without limitation the rights to use, 
+    copy, modify, merge, publish, distribute, sublicense, and/or 
+    sell copies of the Software, and to permit persons to whom the 
+    Software is furnished to do so.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 
+    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
+    DEALINGS IN THE SOFTWARE.
+

.venv/lib/python3.12/site-packages/cffi-2.0.0.dist-info/top_level.txt

@@ -0,0 +1,2 @@
+_cffi_backend
+cffi

.venv/lib/python3.12/site-packages/cffi/__init__.py

@@ -0,0 +1,14 @@
+__all__ = ['FFI', 'VerificationError', 'VerificationMissing', 'CDefError',
+           'FFIError']
+
+from .api import FFI
+from .error import CDefError, FFIError, VerificationError, VerificationMissing
+from .error import PkgConfigError
+
+__version__ = "2.0.0"
+__version_info__ = (2, 0, 0)
+
+# The verifier module file names are based on the CRC32 of a string that
+# contains the following version number.  It may be older than __version__
+# if nothing is clearly incompatible.
+__version_verifier_modules__ = "0.8.6"

.venv/lib/python3.12/site-packages/cffi/_cffi_errors.h

@@ -0,0 +1,149 @@
+#ifndef CFFI_MESSAGEBOX
+# ifdef _MSC_VER
+#  define CFFI_MESSAGEBOX  1
+# else
+#  define CFFI_MESSAGEBOX  0
+# endif
+#endif
+
+
+#if CFFI_MESSAGEBOX
+/* Windows only: logic to take the Python-CFFI embedding logic
+   initialization errors and display them in a background thread
+   with MessageBox.  The idea is that if the whole program closes
+   as a result of this problem, then likely it is already a console
+   program and you can read the stderr output in the console too.
+   If it is not a console program, then it will likely show its own
+   dialog to complain, or generally not abruptly close, and for this
+   case the background thread should stay alive.
+*/
+static void *volatile _cffi_bootstrap_text;
+
+static PyObject *_cffi_start_error_capture(void)
+{
+    PyObject *result = NULL;
+    PyObject *x, *m, *bi;
+
+    if (InterlockedCompareExchangePointer(&_cffi_bootstrap_text,
+            (void *)1, NULL) != NULL)
+        return (PyObject *)1;
+
+    m = PyImport_AddModule("_cffi_error_capture");
+    if (m == NULL)
+        goto error;
+
+    result = PyModule_GetDict(m);
+    if (result == NULL)
+        goto error;
+
+#if PY_MAJOR_VERSION >= 3
+    bi = PyImport_ImportModule("builtins");
+#else
+    bi = PyImport_ImportModule("__builtin__");
+#endif
+    if (bi == NULL)
+        goto error;
+    PyDict_SetItemString(result, "__builtins__", bi);
+    Py_DECREF(bi);
+
+    x = PyRun_String(
+        "import sys\n"
+        "class FileLike:\n"
+        "  def write(self, x):\n"
+        "    try:\n"
+        "      of.write(x)\n"
+        "    except: pass\n"
+        "    self.buf += x\n"
+        "  def flush(self):\n"
+        "    pass\n"
+        "fl = FileLike()\n"
+        "fl.buf = ''\n"
+        "of = sys.stderr\n"
+        "sys.stderr = fl\n"
+        "def done():\n"
+        "  sys.stderr = of\n"
+        "  return fl.buf\n",   /* make sure the returned value stays alive */
+        Py_file_input,
+        result, result);
+    Py_XDECREF(x);
+
+ error:
+    if (PyErr_Occurred())
+    {
+        PyErr_WriteUnraisable(Py_None);
+        PyErr_Clear();
+    }
+    return result;
+}
+
+#pragma comment(lib, "user32.lib")
+
+static DWORD WINAPI _cffi_bootstrap_dialog(LPVOID ignored)
+{
+    Sleep(666);    /* may be interrupted if the whole process is closing */
+#if PY_MAJOR_VERSION >= 3
+    MessageBoxW(NULL, (wchar_t *)_cffi_bootstrap_text,
+                L"Python-CFFI error",
+                MB_OK | MB_ICONERROR);
+#else
+    MessageBoxA(NULL, (char *)_cffi_bootstrap_text,
+                "Python-CFFI error",
+                MB_OK | MB_ICONERROR);
+#endif
+    _cffi_bootstrap_text = NULL;
+    return 0;
+}
+
+static void _cffi_stop_error_capture(PyObject *ecap)
+{
+    PyObject *s;
+    void *text;
+
+    if (ecap == (PyObject *)1)
+        return;
+
+    if (ecap == NULL)
+        goto error;
+
+    s = PyRun_String("done()", Py_eval_input, ecap, ecap);
+    if (s == NULL)
+        goto error;
+
+    /* Show a dialog box, but in a background thread, and
+       never show multiple dialog boxes at once. */
+#if PY_MAJOR_VERSION >= 3
+    text = PyUnicode_AsWideCharString(s, NULL);
+#else
+    text = PyString_AsString(s);
+#endif
+
+    _cffi_bootstrap_text = text;
+
+    if (text != NULL)
+    {
+        HANDLE h;
+        h = CreateThread(NULL, 0, _cffi_bootstrap_dialog,
+                         NULL, 0, NULL);
+        if (h != NULL)
+            CloseHandle(h);
+    }
+    /* decref the string, but it should stay alive as 'fl.buf'
+       in the small module above.  It will really be freed only if
+       we later get another similar error.  So it's a leak of at
+       most one copy of the small module.  That's fine for this
+       situation which is usually a "fatal error" anyway. */
+    Py_DECREF(s);
+    PyErr_Clear();
+    return;
+
+  error:
+    _cffi_bootstrap_text = NULL;
+    PyErr_Clear();
+}
+
+#else
+
+static PyObject *_cffi_start_error_capture(void) { return NULL; }
+static void _cffi_stop_error_capture(PyObject *ecap) { }
+
+#endif

.venv/lib/python3.12/site-packages/cffi/_cffi_include.h

@@ -0,0 +1,389 @@
+#define _CFFI_
+
+/* We try to define Py_LIMITED_API before including Python.h.
+
+   Mess: we can only define it if Py_DEBUG, Py_TRACE_REFS and
+   Py_REF_DEBUG are not defined.  This is a best-effort approximation:
+   we can learn about Py_DEBUG from pyconfig.h, but it is unclear if
+   the same works for the other two macros.  Py_DEBUG implies them,
+   but not the other way around.
+
+   The implementation is messy (issue #350): on Windows, with _MSC_VER,
+   we have to define Py_LIMITED_API even before including pyconfig.h.
+   In that case, we guess what pyconfig.h will do to the macros above,
+   and check our guess after the #include.
+
+   Note that on Windows, with CPython 3.x, you need >= 3.5 and virtualenv
+   version >= 16.0.0.  With older versions of either, you don't get a
+   copy of PYTHON3.DLL in the virtualenv.  We can't check the version of
+   CPython *before* we even include pyconfig.h.  ffi.set_source() puts
+   a ``#define _CFFI_NO_LIMITED_API'' at the start of this file if it is
+   running on Windows < 3.5, as an attempt at fixing it, but that's
+   arguably wrong because it may not be the target version of Python.
+   Still better than nothing I guess.  As another workaround, you can
+   remove the definition of Py_LIMITED_API here.
+
+   See also 'py_limited_api' in cffi/setuptools_ext.py.
+*/
+#if !defined(_CFFI_USE_EMBEDDING) && !defined(Py_LIMITED_API)
+#  ifdef _MSC_VER
+#    if !defined(_DEBUG) && !defined(Py_DEBUG) && !defined(Py_TRACE_REFS) && !defined(Py_REF_DEBUG) && !defined(_CFFI_NO_LIMITED_API)
+#      define Py_LIMITED_API
+#    endif
+#    include <pyconfig.h>
+     /* sanity-check: Py_LIMITED_API will cause crashes if any of these
+        are also defined.  Normally, the Python file PC/pyconfig.h does not
+        cause any of these to be defined, with the exception that _DEBUG
+        causes Py_DEBUG.  Double-check that. */
+#    ifdef Py_LIMITED_API
+#      if defined(Py_DEBUG)
+#        error "pyconfig.h unexpectedly defines Py_DEBUG, but Py_LIMITED_API is set"
+#      endif
+#      if defined(Py_TRACE_REFS)
+#        error "pyconfig.h unexpectedly defines Py_TRACE_REFS, but Py_LIMITED_API is set"
+#      endif
+#      if defined(Py_REF_DEBUG)
+#        error "pyconfig.h unexpectedly defines Py_REF_DEBUG, but Py_LIMITED_API is set"
+#      endif
+#    endif
+#  else
+#    include <pyconfig.h>
+#    if !defined(Py_DEBUG) && !defined(Py_TRACE_REFS) && !defined(Py_REF_DEBUG) && !defined(_CFFI_NO_LIMITED_API)
+#      define Py_LIMITED_API
+#    endif
+#  endif
+#endif
+
+#include <Python.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+#include <stddef.h>
+#include "parse_c_type.h"
+
+/* this block of #ifs should be kept exactly identical between
+   c/_cffi_backend.c, cffi/vengine_cpy.py, cffi/vengine_gen.py
+   and cffi/_cffi_include.h */
+#if defined(_MSC_VER)
+# include <malloc.h>   /* for alloca() */
+# if _MSC_VER < 1600   /* MSVC < 2010 */
+   typedef __int8 int8_t;
+   typedef __int16 int16_t;
+   typedef __int32 int32_t;
+   typedef __int64 int64_t;
+   typedef unsigned __int8 uint8_t;
+   typedef unsigned __int16 uint16_t;
+   typedef unsigned __int32 uint32_t;
+   typedef unsigned __int64 uint64_t;
+   typedef __int8 int_least8_t;
+   typedef __int16 int_least16_t;
+   typedef __int32 int_least32_t;
+   typedef __int64 int_least64_t;
+   typedef unsigned __int8 uint_least8_t;
+   typedef unsigned __int16 uint_least16_t;
+   typedef unsigned __int32 uint_least32_t;
+   typedef unsigned __int64 uint_least64_t;
+   typedef __int8 int_fast8_t;
+   typedef __int16 int_fast16_t;
+   typedef __int32 int_fast32_t;
+   typedef __int64 int_fast64_t;
+   typedef unsigned __int8 uint_fast8_t;
+   typedef unsigned __int16 uint_fast16_t;
+   typedef unsigned __int32 uint_fast32_t;
+   typedef unsigned __int64 uint_fast64_t;
+   typedef __int64 intmax_t;
+   typedef unsigned __int64 uintmax_t;
+# else
+#  include <stdint.h>
+# endif
+# if _MSC_VER < 1800   /* MSVC < 2013 */
+#  ifndef __cplusplus
+    typedef unsigned char _Bool;
+#  endif
+# endif
+# define _cffi_float_complex_t   _Fcomplex    /* include <complex.h> for it */
+# define _cffi_double_complex_t  _Dcomplex    /* include <complex.h> for it */
+#else
+# include <stdint.h>
+# if (defined (__SVR4) && defined (__sun)) || defined(_AIX) || defined(__hpux)
+#  include <alloca.h>
+# endif
+# define _cffi_float_complex_t   float _Complex
+# define _cffi_double_complex_t  double _Complex
+#endif
+
+#ifdef __GNUC__
+# define _CFFI_UNUSED_FN  __attribute__((unused))
+#else
+# define _CFFI_UNUSED_FN  /* nothing */
+#endif
+
+#ifdef __cplusplus
+# ifndef _Bool
+   typedef bool _Bool;   /* semi-hackish: C++ has no _Bool; bool is builtin */
+# endif
+#endif
+
+/**********  CPython-specific section  **********/
+#ifndef PYPY_VERSION
+
+
+#if PY_MAJOR_VERSION >= 3
+# define PyInt_FromLong PyLong_FromLong
+#endif
+
+#define _cffi_from_c_double PyFloat_FromDouble
+#define _cffi_from_c_float PyFloat_FromDouble
+#define _cffi_from_c_long PyInt_FromLong
+#define _cffi_from_c_ulong PyLong_FromUnsignedLong
+#define _cffi_from_c_longlong PyLong_FromLongLong
+#define _cffi_from_c_ulonglong PyLong_FromUnsignedLongLong
+#define _cffi_from_c__Bool PyBool_FromLong
+
+#define _cffi_to_c_double PyFloat_AsDouble
+#define _cffi_to_c_float PyFloat_AsDouble
+
+#define _cffi_from_c_int(x, type)                                        \
+    (((type)-1) > 0 ? /* unsigned */                                     \
+        (sizeof(type) < sizeof(long) ?                                   \
+            PyInt_FromLong((long)x) :                                    \
+         sizeof(type) == sizeof(long) ?                                  \
+            PyLong_FromUnsignedLong((unsigned long)x) :                  \
+            PyLong_FromUnsignedLongLong((unsigned long long)x)) :        \
+        (sizeof(type) <= sizeof(long) ?                                  \
+            PyInt_FromLong((long)x) :                                    \
+            PyLong_FromLongLong((long long)x)))
+
+#define _cffi_to_c_int(o, type)                                          \
+    ((type)(                                                             \
+     sizeof(type) == 1 ? (((type)-1) > 0 ? (type)_cffi_to_c_u8(o)        \
+                                         : (type)_cffi_to_c_i8(o)) :     \
+     sizeof(type) == 2 ? (((type)-1) > 0 ? (type)_cffi_to_c_u16(o)       \
+                                         : (type)_cffi_to_c_i16(o)) :    \
+     sizeof(type) == 4 ? (((type)-1) > 0 ? (type)_cffi_to_c_u32(o)       \
+                                         : (type)_cffi_to_c_i32(o)) :    \
+     sizeof(type) == 8 ? (((type)-1) > 0 ? (type)_cffi_to_c_u64(o)       \
+                                         : (type)_cffi_to_c_i64(o)) :    \
+     (Py_FatalError("unsupported size for type " #type), (type)0)))
+
+#define _cffi_to_c_i8                                                    \
+                 ((int(*)(PyObject *))_cffi_exports[1])
+#define _cffi_to_c_u8                                                    \
+                 ((int(*)(PyObject *))_cffi_exports[2])
+#define _cffi_to_c_i16                                                   \
+                 ((int(*)(PyObject *))_cffi_exports[3])
+#define _cffi_to_c_u16                                                   \
+                 ((int(*)(PyObject *))_cffi_exports[4])
+#define _cffi_to_c_i32                                                   \
+                 ((int(*)(PyObject *))_cffi_exports[5])
+#define _cffi_to_c_u32                                                   \
+                 ((unsigned int(*)(PyObject *))_cffi_exports[6])
+#define _cffi_to_c_i64                                                   \
+                 ((long long(*)(PyObject *))_cffi_exports[7])
+#define _cffi_to_c_u64                                                   \
+                 ((unsigned long long(*)(PyObject *))_cffi_exports[8])
+#define _cffi_to_c_char                                                  \
+                 ((int(*)(PyObject *))_cffi_exports[9])
+#define _cffi_from_c_pointer                                             \
+    ((PyObject *(*)(char *, struct _cffi_ctypedescr *))_cffi_exports[10])
+#define _cffi_to_c_pointer                                               \
+    ((char *(*)(PyObject *, struct _cffi_ctypedescr *))_cffi_exports[11])
+#define _cffi_get_struct_layout                                          \
+    not used any more
+#define _cffi_restore_errno                                              \
+    ((void(*)(void))_cffi_exports[13])
+#define _cffi_save_errno                                                 \
+    ((void(*)(void))_cffi_exports[14])
+#define _cffi_from_c_char                                                \
+    ((PyObject *(*)(char))_cffi_exports[15])
+#define _cffi_from_c_deref                                               \
+    ((PyObject *(*)(char *, struct _cffi_ctypedescr *))_cffi_exports[16])
+#define _cffi_to_c                                                       \
+    ((int(*)(char *, struct _cffi_ctypedescr *, PyObject *))_cffi_exports[17])
+#define _cffi_from_c_struct                                              \
+    ((PyObject *(*)(char *, struct _cffi_ctypedescr *))_cffi_exports[18])
+#define _cffi_to_c_wchar_t                                               \
+    ((_cffi_wchar_t(*)(PyObject *))_cffi_exports[19])
+#define _cffi_from_c_wchar_t                                             \
+    ((PyObject *(*)(_cffi_wchar_t))_cffi_exports[20])
+#define _cffi_to_c_long_double                                           \
+    ((long double(*)(PyObject *))_cffi_exports[21])
+#define _cffi_to_c__Bool                                                 \
+    ((_Bool(*)(PyObject *))_cffi_exports[22])
+#define _cffi_prepare_pointer_call_argument                              \
+    ((Py_ssize_t(*)(struct _cffi_ctypedescr *,                           \
+                    PyObject *, char **))_cffi_exports[23])
+#define _cffi_convert_array_from_object                                  \
+    ((int(*)(char *, struct _cffi_ctypedescr *, PyObject *))_cffi_exports[24])
+#define _CFFI_CPIDX  25
+#define _cffi_call_python                                                \
+    ((void(*)(struct _cffi_externpy_s *, char *))_cffi_exports[_CFFI_CPIDX])
+#define _cffi_to_c_wchar3216_t                                           \
+    ((int(*)(PyObject *))_cffi_exports[26])
+#define _cffi_from_c_wchar3216_t                                         \
+    ((PyObject *(*)(int))_cffi_exports[27])
+#define _CFFI_NUM_EXPORTS 28
+
+struct _cffi_ctypedescr;
+
+static void *_cffi_exports[_CFFI_NUM_EXPORTS];
+
+#define _cffi_type(index)   (                           \
+    assert((((uintptr_t)_cffi_types[index]) & 1) == 0), \
+    (struct _cffi_ctypedescr *)_cffi_types[index])
+
+static PyObject *_cffi_init(const char *module_name, Py_ssize_t version,
+                            const struct _cffi_type_context_s *ctx)
+{
+    PyObject *module, *o_arg, *new_module;
+    void *raw[] = {
+        (void *)module_name,
+        (void *)version,
+        (void *)_cffi_exports,
+        (void *)ctx,
+    };
+
+    module = PyImport_ImportModule("_cffi_backend");
+    if (module == NULL)
+        goto failure;
+
+    o_arg = PyLong_FromVoidPtr((void *)raw);
+    if (o_arg == NULL)
+        goto failure;
+
+    new_module = PyObject_CallMethod(
+        module, (char *)"_init_cffi_1_0_external_module", (char *)"O", o_arg);
+
+    Py_DECREF(o_arg);
+    Py_DECREF(module);
+    return new_module;
+
+  failure:
+    Py_XDECREF(module);
+    return NULL;
+}
+
+
+#ifdef HAVE_WCHAR_H
+typedef wchar_t _cffi_wchar_t;
+#else
+typedef uint16_t _cffi_wchar_t;   /* same random pick as _cffi_backend.c */
+#endif
+
+_CFFI_UNUSED_FN static uint16_t _cffi_to_c_char16_t(PyObject *o)
+{
+    if (sizeof(_cffi_wchar_t) == 2)
+        return (uint16_t)_cffi_to_c_wchar_t(o);
+    else
+        return (uint16_t)_cffi_to_c_wchar3216_t(o);
+}
+
+_CFFI_UNUSED_FN static PyObject *_cffi_from_c_char16_t(uint16_t x)
+{
+    if (sizeof(_cffi_wchar_t) == 2)
+        return _cffi_from_c_wchar_t((_cffi_wchar_t)x);
+    else
+        return _cffi_from_c_wchar3216_t((int)x);
+}
+
+_CFFI_UNUSED_FN static int _cffi_to_c_char32_t(PyObject *o)
+{
+    if (sizeof(_cffi_wchar_t) == 4)
+        return (int)_cffi_to_c_wchar_t(o);
+    else
+        return (int)_cffi_to_c_wchar3216_t(o);
+}
+
+_CFFI_UNUSED_FN static PyObject *_cffi_from_c_char32_t(unsigned int x)
+{
+    if (sizeof(_cffi_wchar_t) == 4)
+        return _cffi_from_c_wchar_t((_cffi_wchar_t)x);
+    else
+        return _cffi_from_c_wchar3216_t((int)x);
+}
+
+union _cffi_union_alignment_u {
+    unsigned char m_char;
+    unsigned short m_short;
+    unsigned int m_int;
+    unsigned long m_long;
+    unsigned long long m_longlong;
+    float m_float;
+    double m_double;
+    long double m_longdouble;
+};
+
+struct _cffi_freeme_s {
+    struct _cffi_freeme_s *next;
+    union _cffi_union_alignment_u alignment;
+};
+
+_CFFI_UNUSED_FN static int
+_cffi_convert_array_argument(struct _cffi_ctypedescr *ctptr, PyObject *arg,
+                             char **output_data, Py_ssize_t datasize,
+                             struct _cffi_freeme_s **freeme)
+{
+    char *p;
+    if (datasize < 0)
+        return -1;
+
+    p = *output_data;
+    if (p == NULL) {
+        struct _cffi_freeme_s *fp = (struct _cffi_freeme_s *)PyObject_Malloc(
+            offsetof(struct _cffi_freeme_s, alignment) + (size_t)datasize);
+        if (fp == NULL)
+            return -1;
+        fp->next = *freeme;
+        *freeme = fp;
+        p = *output_data = (char *)&fp->alignment;
+    }
+    memset((void *)p, 0, (size_t)datasize);
+    return _cffi_convert_array_from_object(p, ctptr, arg);
+}
+
+_CFFI_UNUSED_FN static void
+_cffi_free_array_arguments(struct _cffi_freeme_s *freeme)
+{
+    do {
+        void *p = (void *)freeme;
+        freeme = freeme->next;
+        PyObject_Free(p);
+    } while (freeme != NULL);
+}
+
+/**********  end CPython-specific section  **********/
+#else
+_CFFI_UNUSED_FN
+static void (*_cffi_call_python_org)(struct _cffi_externpy_s *, char *);
+# define _cffi_call_python  _cffi_call_python_org
+#endif
+
+
+#define _cffi_array_len(array)   (sizeof(array) / sizeof((array)[0]))
+
+#define _cffi_prim_int(size, sign)                                      \
+    ((size) == 1 ? ((sign) ? _CFFI_PRIM_INT8  : _CFFI_PRIM_UINT8)  :    \
+     (size) == 2 ? ((sign) ? _CFFI_PRIM_INT16 : _CFFI_PRIM_UINT16) :    \
+     (size) == 4 ? ((sign) ? _CFFI_PRIM_INT32 : _CFFI_PRIM_UINT32) :    \
+     (size) == 8 ? ((sign) ? _CFFI_PRIM_INT64 : _CFFI_PRIM_UINT64) :    \
+     _CFFI__UNKNOWN_PRIM)
+
+#define _cffi_prim_float(size)                                          \
+    ((size) == sizeof(float) ? _CFFI_PRIM_FLOAT :                       \
+     (size) == sizeof(double) ? _CFFI_PRIM_DOUBLE :                     \
+     (size) == sizeof(long double) ? _CFFI__UNKNOWN_LONG_DOUBLE :       \
+     _CFFI__UNKNOWN_FLOAT_PRIM)
+
+#define _cffi_check_int(got, got_nonpos, expected)      \
+    ((got_nonpos) == (expected <= 0) &&                 \
+     (got) == (unsigned long long)expected)
+
+#ifdef MS_WIN32
+# define _cffi_stdcall  __stdcall
+#else
+# define _cffi_stdcall  /* nothing */
+#endif
+
+#ifdef __cplusplus
+}
+#endif

.venv/lib/python3.12/site-packages/cffi/_embedding.h

@@ -0,0 +1,550 @@
+
+/***** Support code for embedding *****/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#if defined(_WIN32)
+#  define CFFI_DLLEXPORT  __declspec(dllexport)
+#elif defined(__GNUC__)
+#  define CFFI_DLLEXPORT  __attribute__((visibility("default")))
+#else
+#  define CFFI_DLLEXPORT  /* nothing */
+#endif
+
+
+/* There are two global variables of type _cffi_call_python_fnptr:
+
+   * _cffi_call_python, which we declare just below, is the one called
+     by ``extern "Python"`` implementations.
+
+   * _cffi_call_python_org, which on CPython is actually part of the
+     _cffi_exports[] array, is the function pointer copied from
+     _cffi_backend.  If _cffi_start_python() fails, then this is set
+     to NULL; otherwise, it should never be NULL.
+
+   After initialization is complete, both are equal.  However, the
+   first one remains equal to &_cffi_start_and_call_python until the
+   very end of initialization, when we are (or should be) sure that
+   concurrent threads also see a completely initialized world, and
+   only then is it changed.
+*/
+#undef _cffi_call_python
+typedef void (*_cffi_call_python_fnptr)(struct _cffi_externpy_s *, char *);
+static void _cffi_start_and_call_python(struct _cffi_externpy_s *, char *);
+static _cffi_call_python_fnptr _cffi_call_python = &_cffi_start_and_call_python;
+
+
+#ifndef _MSC_VER
+   /* --- Assuming a GCC not infinitely old --- */
+# define cffi_compare_and_swap(l,o,n)  __sync_bool_compare_and_swap(l,o,n)
+# define cffi_write_barrier()          __sync_synchronize()
+# if !defined(__amd64__) && !defined(__x86_64__) &&   \
+     !defined(__i386__) && !defined(__i386)
+#   define cffi_read_barrier()         __sync_synchronize()
+# else
+#   define cffi_read_barrier()         (void)0
+# endif
+#else
+   /* --- Windows threads version --- */
+# include <Windows.h>
+# define cffi_compare_and_swap(l,o,n) \
+                               (InterlockedCompareExchangePointer(l,n,o) == (o))
+# define cffi_write_barrier()       InterlockedCompareExchange(&_cffi_dummy,0,0)
+# define cffi_read_barrier()           (void)0
+static volatile LONG _cffi_dummy;
+#endif
+
+#ifdef WITH_THREAD
+# ifndef _MSC_VER
+#  include <pthread.h>
+   static pthread_mutex_t _cffi_embed_startup_lock;
+# else
+   static CRITICAL_SECTION _cffi_embed_startup_lock;
+# endif
+  static char _cffi_embed_startup_lock_ready = 0;
+#endif
+
+static void _cffi_acquire_reentrant_mutex(void)
+{
+    static void *volatile lock = NULL;
+
+    while (!cffi_compare_and_swap(&lock, NULL, (void *)1)) {
+        /* should ideally do a spin loop instruction here, but
+           hard to do it portably and doesn't really matter I
+           think: pthread_mutex_init() should be very fast, and
+           this is only run at start-up anyway. */
+    }
+
+#ifdef WITH_THREAD
+    if (!_cffi_embed_startup_lock_ready) {
+# ifndef _MSC_VER
+        pthread_mutexattr_t attr;
+        pthread_mutexattr_init(&attr);
+        pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+        pthread_mutex_init(&_cffi_embed_startup_lock, &attr);
+# else
+        InitializeCriticalSection(&_cffi_embed_startup_lock);
+# endif
+        _cffi_embed_startup_lock_ready = 1;
+    }
+#endif
+
+    while (!cffi_compare_and_swap(&lock, (void *)1, NULL))
+        ;
+
+#ifndef _MSC_VER
+    pthread_mutex_lock(&_cffi_embed_startup_lock);
+#else
+    EnterCriticalSection(&_cffi_embed_startup_lock);
+#endif
+}
+
+static void _cffi_release_reentrant_mutex(void)
+{
+#ifndef _MSC_VER
+    pthread_mutex_unlock(&_cffi_embed_startup_lock);
+#else
+    LeaveCriticalSection(&_cffi_embed_startup_lock);
+#endif
+}
+
+
+/**********  CPython-specific section  **********/
+#ifndef PYPY_VERSION
+
+#include "_cffi_errors.h"
+
+
+#define _cffi_call_python_org  _cffi_exports[_CFFI_CPIDX]
+
+PyMODINIT_FUNC _CFFI_PYTHON_STARTUP_FUNC(void);   /* forward */
+
+static void _cffi_py_initialize(void)
+{
+    /* XXX use initsigs=0, which "skips initialization registration of
+       signal handlers, which might be useful when Python is
+       embedded" according to the Python docs.  But review and think
+       if it should be a user-controllable setting.
+
+       XXX we should also give a way to write errors to a buffer
+       instead of to stderr.
+
+       XXX if importing 'site' fails, CPython (any version) calls
+       exit().  Should we try to work around this behavior here?
+    */
+    Py_InitializeEx(0);
+}
+
+static int _cffi_initialize_python(void)
+{
+    /* This initializes Python, imports _cffi_backend, and then the
+       present .dll/.so is set up as a CPython C extension module.
+    */
+    int result;
+    PyGILState_STATE state;
+    PyObject *pycode=NULL, *global_dict=NULL, *x;
+    PyObject *builtins;
+
+    state = PyGILState_Ensure();
+
+    /* Call the initxxx() function from the present module.  It will
+       create and initialize us as a CPython extension module, instead
+       of letting the startup Python code do it---it might reimport
+       the same .dll/.so and get maybe confused on some platforms.
+       It might also have troubles locating the .dll/.so again for all
+       I know.
+    */
+    (void)_CFFI_PYTHON_STARTUP_FUNC();
+    if (PyErr_Occurred())
+        goto error;
+
+    /* Now run the Python code provided to ffi.embedding_init_code().
+     */
+    pycode = Py_CompileString(_CFFI_PYTHON_STARTUP_CODE,
+                              "<init code for '" _CFFI_MODULE_NAME "'>",
+                              Py_file_input);
+    if (pycode == NULL)
+        goto error;
+    global_dict = PyDict_New();
+    if (global_dict == NULL)
+        goto error;
+    builtins = PyEval_GetBuiltins();
+    if (builtins == NULL)
+        goto error;
+    if (PyDict_SetItemString(global_dict, "__builtins__", builtins) < 0)
+        goto error;
+    x = PyEval_EvalCode(
+#if PY_MAJOR_VERSION < 3
+                        (PyCodeObject *)
+#endif
+                        pycode, global_dict, global_dict);
+    if (x == NULL)
+        goto error;
+    Py_DECREF(x);
+
+    /* Done!  Now if we've been called from
+       _cffi_start_and_call_python() in an ``extern "Python"``, we can
+       only hope that the Python code did correctly set up the
+       corresponding @ffi.def_extern() function.  Otherwise, the
+       general logic of ``extern "Python"`` functions (inside the
+       _cffi_backend module) will find that the reference is still
+       missing and print an error.
+     */
+    result = 0;
+ done:
+    Py_XDECREF(pycode);
+    Py_XDECREF(global_dict);
+    PyGILState_Release(state);
+    return result;
+
+ error:;
+    {
+        /* Print as much information as potentially useful.
+           Debugging load-time failures with embedding is not fun
+        */
+        PyObject *ecap;
+        PyObject *exception, *v, *tb, *f, *modules, *mod;
+        PyErr_Fetch(&exception, &v, &tb);
+        ecap = _cffi_start_error_capture();
+        f = PySys_GetObject((char *)"stderr");
+        if (f != NULL && f != Py_None) {
+            PyFile_WriteString(
+                "Failed to initialize the Python-CFFI embedding logic:\n\n", f);
+        }
+
+        if (exception != NULL) {
+            PyErr_NormalizeException(&exception, &v, &tb);
+            PyErr_Display(exception, v, tb);
+        }
+        Py_XDECREF(exception);
+        Py_XDECREF(v);
+        Py_XDECREF(tb);
+
+        if (f != NULL && f != Py_None) {
+            PyFile_WriteString("\nFrom: " _CFFI_MODULE_NAME
+                               "\ncompiled with cffi version: 2.0.0"
+                               "\n_cffi_backend module: ", f);
+            modules = PyImport_GetModuleDict();
+            mod = PyDict_GetItemString(modules, "_cffi_backend");
+            if (mod == NULL) {
+                PyFile_WriteString("not loaded", f);
+            }
+            else {
+                v = PyObject_GetAttrString(mod, "__file__");
+                PyFile_WriteObject(v, f, 0);
+                Py_XDECREF(v);
+            }
+            PyFile_WriteString("\nsys.path: ", f);
+            PyFile_WriteObject(PySys_GetObject((char *)"path"), f, 0);
+            PyFile_WriteString("\n\n", f);
+        }
+        _cffi_stop_error_capture(ecap);
+    }
+    result = -1;
+    goto done;
+}
+
+#if PY_VERSION_HEX < 0x03080000
+PyAPI_DATA(char *) _PyParser_TokenNames[];  /* from CPython */
+#endif
+
+static int _cffi_carefully_make_gil(void)
+{
+    /* This does the basic initialization of Python.  It can be called
+       completely concurrently from unrelated threads.  It assumes
+       that we don't hold the GIL before (if it exists), and we don't
+       hold it afterwards.
+
+       (What it really does used to be completely different in Python 2
+       and Python 3, with the Python 2 solution avoiding the spin-lock
+       around the Py_InitializeEx() call.  However, after recent changes
+       to CPython 2.7 (issue #358) it no longer works.  So we use the
+       Python 3 solution everywhere.)
+
+       This initializes Python by calling Py_InitializeEx().
+       Important: this must not be called concurrently at all.
+       So we use a global variable as a simple spin lock.  This global
+       variable must be from 'libpythonX.Y.so', not from this
+       cffi-based extension module, because it must be shared from
+       different cffi-based extension modules.
+
+       In Python < 3.8, we choose
+       _PyParser_TokenNames[0] as a completely arbitrary pointer value
+       that is never written to.  The default is to point to the
+       string "ENDMARKER".  We change it temporarily to point to the
+       next character in that string.  (Yes, I know it's REALLY
+       obscure.)
+
+       In Python >= 3.8, this string array is no longer writable, so
+       instead we pick PyCapsuleType.tp_version_tag.  We can't change
+       Python < 3.8 because someone might use a mixture of cffi
+       embedded modules, some of which were compiled before this file
+       changed.
+
+       In Python >= 3.12, this stopped working because that particular
+       tp_version_tag gets modified during interpreter startup.  It's
+       arguably a bad idea before 3.12 too, but again we can't change
+       that because someone might use a mixture of cffi embedded
+       modules, and no-one reported a bug so far.  In Python >= 3.12
+       we go instead for PyCapsuleType.tp_as_buffer, which is supposed
+       to always be NULL.  We write to it temporarily a pointer to
+       a struct full of NULLs, which is semantically the same.
+    */
+
+#ifdef WITH_THREAD
+# if PY_VERSION_HEX < 0x03080000
+    char *volatile *lock = (char *volatile *)_PyParser_TokenNames;
+    char *old_value, *locked_value;
+
+    while (1) {    /* spin loop */
+        old_value = *lock;
+        locked_value = old_value + 1;
+        if (old_value[0] == 'E') {
+            assert(old_value[1] == 'N');
+            if (cffi_compare_and_swap(lock, old_value, locked_value))
+                break;
+        }
+        else {
+            assert(old_value[0] == 'N');
+            /* should ideally do a spin loop instruction here, but
+               hard to do it portably and doesn't really matter I
+               think: PyEval_InitThreads() should be very fast, and
+               this is only run at start-up anyway. */
+        }
+    }
+# else
+#  if PY_VERSION_HEX < 0x030C0000
+    int volatile *lock = (int volatile *)&PyCapsule_Type.tp_version_tag;
+    int old_value, locked_value = -42;
+    assert(!(PyCapsule_Type.tp_flags & Py_TPFLAGS_HAVE_VERSION_TAG));
+#  else
+    static struct ebp_s { PyBufferProcs buf; int mark; } empty_buffer_procs;
+    empty_buffer_procs.mark = -42;
+    PyBufferProcs *volatile *lock = (PyBufferProcs *volatile *)
+        &PyCapsule_Type.tp_as_buffer;
+    PyBufferProcs *old_value, *locked_value = &empty_buffer_procs.buf;
+#  endif
+
+    while (1) {    /* spin loop */
+        old_value = *lock;
+        if (old_value == 0) {
+            if (cffi_compare_and_swap(lock, old_value, locked_value))
+                break;
+        }
+        else {
+#  if PY_VERSION_HEX < 0x030C0000
+            assert(old_value == locked_value);
+#  else
+            /* The pointer should point to a possibly different
+               empty_buffer_procs from another C extension module */
+            assert(((struct ebp_s *)old_value)->mark == -42);
+#  endif
+            /* should ideally do a spin loop instruction here, but
+               hard to do it portably and doesn't really matter I
+               think: PyEval_InitThreads() should be very fast, and
+               this is only run at start-up anyway. */
+        }
+    }
+# endif
+#endif
+
+    /* call Py_InitializeEx() */
+    if (!Py_IsInitialized()) {
+        _cffi_py_initialize();
+#if PY_VERSION_HEX < 0x03070000
+        PyEval_InitThreads();
+#endif
+        PyEval_SaveThread();  /* release the GIL */
+        /* the returned tstate must be the one that has been stored into the
+           autoTLSkey by _PyGILState_Init() called from Py_Initialize(). */
+    }
+    else {
+#if PY_VERSION_HEX < 0x03070000
+        /* PyEval_InitThreads() is always a no-op from CPython 3.7 */
+        PyGILState_STATE state = PyGILState_Ensure();
+        PyEval_InitThreads();
+        PyGILState_Release(state);
+#endif
+    }
+
+#ifdef WITH_THREAD
+    /* release the lock */
+    while (!cffi_compare_and_swap(lock, locked_value, old_value))
+        ;
+#endif
+
+    return 0;
+}
+
+/**********  end CPython-specific section  **********/
+
+
+#else
+
+
+/**********  PyPy-specific section  **********/
+
+PyMODINIT_FUNC _CFFI_PYTHON_STARTUP_FUNC(const void *[]);   /* forward */
+
+static struct _cffi_pypy_init_s {
+    const char *name;
+    void *func;    /* function pointer */
+    const char *code;
+} _cffi_pypy_init = {
+    _CFFI_MODULE_NAME,
+    _CFFI_PYTHON_STARTUP_FUNC,
+    _CFFI_PYTHON_STARTUP_CODE,
+};
+
+extern int pypy_carefully_make_gil(const char *);
+extern int pypy_init_embedded_cffi_module(int, struct _cffi_pypy_init_s *);
+
+static int _cffi_carefully_make_gil(void)
+{
+    return pypy_carefully_make_gil(_CFFI_MODULE_NAME);
+}
+
+static int _cffi_initialize_python(void)
+{
+    return pypy_init_embedded_cffi_module(0xB011, &_cffi_pypy_init);
+}
+
+/**********  end PyPy-specific section  **********/
+
+
+#endif
+
+
+#ifdef __GNUC__
+__attribute__((noinline))
+#endif
+static _cffi_call_python_fnptr _cffi_start_python(void)
+{
+    /* Delicate logic to initialize Python.  This function can be
+       called multiple times concurrently, e.g. when the process calls
+       its first ``extern "Python"`` functions in multiple threads at
+       once.  It can also be called recursively, in which case we must
+       ignore it.  We also have to consider what occurs if several
+       different cffi-based extensions reach this code in parallel
+       threads---it is a different copy of the code, then, and we
+       can't have any shared global variable unless it comes from
+       'libpythonX.Y.so'.
+
+       Idea:
+
+       * _cffi_carefully_make_gil(): "carefully" call
+         PyEval_InitThreads() (possibly with Py_InitializeEx() first).
+
+       * then we use a (local) custom lock to make sure that a call to this
+         cffi-based extension will wait if another call to the *same*
+         extension is running the initialization in another thread.
+         It is reentrant, so that a recursive call will not block, but
+         only one from a different thread.
+
+       * then we grab the GIL and (Python 2) we call Py_InitializeEx().
+         At this point, concurrent calls to Py_InitializeEx() are not
+         possible: we have the GIL.
+
+       * do the rest of the specific initialization, which may
+         temporarily release the GIL but not the custom lock.
+         Only release the custom lock when we are done.
+    */
+    static char called = 0;
+
+    if (_cffi_carefully_make_gil() != 0)
+        return NULL;
+
+    _cffi_acquire_reentrant_mutex();
+
+    /* Here the GIL exists, but we don't have it.  We're only protected
+       from concurrency by the reentrant mutex. */
+
+    /* This file only initializes the embedded module once, the first
+       time this is called, even if there are subinterpreters. */
+    if (!called) {
+        called = 1;  /* invoke _cffi_initialize_python() only once,
+                        but don't set '_cffi_call_python' right now,
+                        otherwise concurrent threads won't call
+                        this function at all (we need them to wait) */
+        if (_cffi_initialize_python() == 0) {
+            /* now initialization is finished.  Switch to the fast-path. */
+
+            /* We would like nobody to see the new value of
+               '_cffi_call_python' without also seeing the rest of the
+               data initialized.  However, this is not possible.  But
+               the new value of '_cffi_call_python' is the function
+               'cffi_call_python()' from _cffi_backend.  So:  */
+            cffi_write_barrier();
+            /* ^^^ we put a write barrier here, and a corresponding
+               read barrier at the start of cffi_call_python().  This
+               ensures that after that read barrier, we see everything
+               done here before the write barrier.
+            */
+
+            assert(_cffi_call_python_org != NULL);
+            _cffi_call_python = (_cffi_call_python_fnptr)_cffi_call_python_org;
+        }
+        else {
+            /* initialization failed.  Reset this to NULL, even if it was
+               already set to some other value.  Future calls to
+               _cffi_start_python() are still forced to occur, and will
+               always return NULL from now on. */
+            _cffi_call_python_org = NULL;
+        }
+    }
+
+    _cffi_release_reentrant_mutex();
+
+    return (_cffi_call_python_fnptr)_cffi_call_python_org;
+}
+
+static
+void _cffi_start_and_call_python(struct _cffi_externpy_s *externpy, char *args)
+{
+    _cffi_call_python_fnptr fnptr;
+    int current_err = errno;
+#ifdef _MSC_VER
+    int current_lasterr = GetLastError();
+#endif
+    fnptr = _cffi_start_python();
+    if (fnptr == NULL) {
+        fprintf(stderr, "function %s() called, but initialization code "
+                        "failed.  Returning 0.\n", externpy->name);
+        memset(args, 0, externpy->size_of_result);
+    }
+#ifdef _MSC_VER
+    SetLastError(current_lasterr);
+#endif
+    errno = current_err;
+
+    if (fnptr != NULL)
+        fnptr(externpy, args);
+}
+
+
+/* The cffi_start_python() function makes sure Python is initialized
+   and our cffi module is set up.  It can be called manually from the
+   user C code.  The same effect is obtained automatically from any
+   dll-exported ``extern "Python"`` function.  This function returns
+   -1 if initialization failed, 0 if all is OK.  */
+_CFFI_UNUSED_FN
+static int cffi_start_python(void)
+{
+    if (_cffi_call_python == &_cffi_start_and_call_python) {
+        if (_cffi_start_python() == NULL)
+            return -1;
+    }
+    cffi_read_barrier();
+    return 0;
+}
+
+#undef cffi_compare_and_swap
+#undef cffi_write_barrier
+#undef cffi_read_barrier
+
+#ifdef __cplusplus
+}
+#endif

.venv/lib/python3.12/site-packages/cffi/_imp_emulation.py

@@ -0,0 +1,83 @@
+
+try:
+    # this works on Python < 3.12
+    from imp import *
+
+except ImportError:
+    # this is a limited emulation for Python >= 3.12.
+    # Note that this is used only for tests or for the old ffi.verify().
+    # This is copied from the source code of Python 3.11.
+
+    from _imp import (acquire_lock, release_lock,
+                      is_builtin, is_frozen)
+
+    from importlib._bootstrap import _load
+
+    from importlib import machinery
+    import os
+    import sys
+    import tokenize
+
+    SEARCH_ERROR = 0
+    PY_SOURCE = 1
+    PY_COMPILED = 2
+    C_EXTENSION = 3
+    PY_RESOURCE = 4
+    PKG_DIRECTORY = 5
+    C_BUILTIN = 6
+    PY_FROZEN = 7
+    PY_CODERESOURCE = 8
+    IMP_HOOK = 9
+
+    def get_suffixes():
+        extensions = [(s, 'rb', C_EXTENSION)
+                      for s in machinery.EXTENSION_SUFFIXES]
+        source = [(s, 'r', PY_SOURCE) for s in machinery.SOURCE_SUFFIXES]
+        bytecode = [(s, 'rb', PY_COMPILED) for s in machinery.BYTECODE_SUFFIXES]
+        return extensions + source + bytecode
+
+    def find_module(name, path=None):
+        if not isinstance(name, str):
+            raise TypeError("'name' must be a str, not {}".format(type(name)))
+        elif not isinstance(path, (type(None), list)):
+            # Backwards-compatibility
+            raise RuntimeError("'path' must be None or a list, "
+                               "not {}".format(type(path)))
+
+        if path is None:
+            if is_builtin(name):
+                return None, None, ('', '', C_BUILTIN)
+            elif is_frozen(name):
+                return None, None, ('', '', PY_FROZEN)
+            else:
+                path = sys.path
+
+        for entry in path:
+            package_directory = os.path.join(entry, name)
+            for suffix in ['.py', machinery.BYTECODE_SUFFIXES[0]]:
+                package_file_name = '__init__' + suffix
+                file_path = os.path.join(package_directory, package_file_name)
+                if os.path.isfile(file_path):
+                    return None, package_directory, ('', '', PKG_DIRECTORY)
+            for suffix, mode, type_ in get_suffixes():
+                file_name = name + suffix
+                file_path = os.path.join(entry, file_name)
+                if os.path.isfile(file_path):
+                    break
+            else:
+                continue
+            break  # Break out of outer loop when breaking out of inner loop.
+        else:
+            raise ImportError(name, name=name)
+
+        encoding = None
+        if 'b' not in mode:
+            with open(file_path, 'rb') as file:
+                encoding = tokenize.detect_encoding(file.readline)[0]
+        file = open(file_path, mode, encoding=encoding)
+        return file, file_path, (suffix, mode, type_)
+
+    def load_dynamic(name, path, file=None):
+        loader = machinery.ExtensionFileLoader(name, path)
+        spec = machinery.ModuleSpec(name=name, loader=loader, origin=path)
+        return _load(spec)

.venv/lib/python3.12/site-packages/cffi/_shimmed_dist_utils.py

@@ -0,0 +1,45 @@
+"""
+Temporary shim module to indirect the bits of distutils we need from setuptools/distutils while providing useful
+error messages beyond `No module named 'distutils' on Python >= 3.12, or when setuptools' vendored distutils is broken.
+
+This is a compromise to avoid a hard-dep on setuptools for Python >= 3.12, since many users don't need runtime compilation support from CFFI.
+"""
+import sys
+
+try:
+    # import setuptools first; this is the most robust way to ensure its embedded distutils is available
+    # (the .pth shim should usually work, but this is even more robust)
+    import setuptools
+except Exception as ex:
+    if sys.version_info >= (3, 12):
+        # Python 3.12 has no built-in distutils to fall back on, so any import problem is fatal
+        raise Exception("This CFFI feature requires setuptools on Python >= 3.12. The setuptools module is missing or non-functional.") from ex
+
+    # silently ignore on older Pythons (support fallback to stdlib distutils where available)
+else:
+    del setuptools
+
+try:
+    # bring in just the bits of distutils we need, whether they really came from setuptools or stdlib-embedded distutils
+    from distutils import log, sysconfig
+    from distutils.ccompiler import CCompiler
+    from distutils.command.build_ext import build_ext
+    from distutils.core import Distribution, Extension
+    from distutils.dir_util import mkpath
+    from distutils.errors import DistutilsSetupError, CompileError, LinkError
+    from distutils.log import set_threshold, set_verbosity
+
+    if sys.platform == 'win32':
+        try:
+            # FUTURE: msvc9compiler module was removed in setuptools 74; consider removing, as it's only used by an ancient patch in `recompiler`
+            from distutils.msvc9compiler import MSVCCompiler
+        except ImportError:
+            MSVCCompiler = None
+except Exception as ex:
+    if sys.version_info >= (3, 12):
+        raise Exception("This CFFI feature requires setuptools on Python >= 3.12. Please install the setuptools package.") from ex
+
+    # anything older, just let the underlying distutils import error fly
+    raise Exception("This CFFI feature requires distutils. Please install the distutils or setuptools package.") from ex
+
+del sys

.venv/lib/python3.12/site-packages/cffi/api.py

@@ -0,0 +1,967 @@
+import sys, types
+from .lock import allocate_lock
+from .error import CDefError
+from . import model
+
+try:
+    callable
+except NameError:
+    # Python 3.1
+    from collections import Callable
+    callable = lambda x: isinstance(x, Callable)
+
+try:
+    basestring
+except NameError:
+    # Python 3.x
+    basestring = str
+
+_unspecified = object()
+
+
+
+class FFI(object):
+    r'''
+    The main top-level class that you instantiate once, or once per module.
+
+    Example usage:
+
+        ffi = FFI()
+        ffi.cdef("""
+            int printf(const char *, ...);
+        """)
+
+        C = ffi.dlopen(None)   # standard library
+        -or-
+        C = ffi.verify()  # use a C compiler: verify the decl above is right
+
+        C.printf("hello, %s!\n", ffi.new("char[]", "world"))
+    '''
+
+    def __init__(self, backend=None):
+        """Create an FFI instance.  The 'backend' argument is used to
+        select a non-default backend, mostly for tests.
+        """
+        if backend is None:
+            # You need PyPy (>= 2.0 beta), or a CPython (>= 2.6) with
+            # _cffi_backend.so compiled.
+            import _cffi_backend as backend
+            from . import __version__
+            if backend.__version__ != __version__:
+                # bad version!  Try to be as explicit as possible.
+                if hasattr(backend, '__file__'):
+                    # CPython
+                    raise Exception("Version mismatch: this is the 'cffi' package version %s, located in %r.  When we import the top-level '_cffi_backend' extension module, we get version %s, located in %r.  The two versions should be equal; check your installation." % (
+                        __version__, __file__,
+                        backend.__version__, backend.__file__))
+                else:
+                    # PyPy
+                    raise Exception("Version mismatch: this is the 'cffi' package version %s, located in %r.  This interpreter comes with a built-in '_cffi_backend' module, which is version %s.  The two versions should be equal; check your installation." % (
+                        __version__, __file__, backend.__version__))
+            # (If you insist you can also try to pass the option
+            # 'backend=backend_ctypes.CTypesBackend()', but don't
+            # rely on it!  It's probably not going to work well.)
+
+        from . import cparser
+        self._backend = backend
+        self._lock = allocate_lock()
+        self._parser = cparser.Parser()
+        self._cached_btypes = {}
+        self._parsed_types = types.ModuleType('parsed_types').__dict__
+        self._new_types = types.ModuleType('new_types').__dict__
+        self._function_caches = []
+        self._libraries = []
+        self._cdefsources = []
+        self._included_ffis = []
+        self._windows_unicode = None
+        self._init_once_cache = {}
+        self._cdef_version = None
+        self._embedding = None
+        self._typecache = model.get_typecache(backend)
+        if hasattr(backend, 'set_ffi'):
+            backend.set_ffi(self)
+        for name in list(backend.__dict__):
+            if name.startswith('RTLD_'):
+                setattr(self, name, getattr(backend, name))
+        #
+        with self._lock:
+            self.BVoidP = self._get_cached_btype(model.voidp_type)
+            self.BCharA = self._get_cached_btype(model.char_array_type)
+        if isinstance(backend, types.ModuleType):
+            # _cffi_backend: attach these constants to the class
+            if not hasattr(FFI, 'NULL'):
+                FFI.NULL = self.cast(self.BVoidP, 0)
+                FFI.CData, FFI.CType = backend._get_types()
+        else:
+            # ctypes backend: attach these constants to the instance
+            self.NULL = self.cast(self.BVoidP, 0)
+            self.CData, self.CType = backend._get_types()
+        self.buffer = backend.buffer
+
+    def cdef(self, csource, override=False, packed=False, pack=None):
+        """Parse the given C source.  This registers all declared functions,
+        types, and global variables.  The functions and global variables can
+        then be accessed via either 'ffi.dlopen()' or 'ffi.verify()'.
+        The types can be used in 'ffi.new()' and other functions.
+        If 'packed' is specified as True, all structs declared inside this
+        cdef are packed, i.e. laid out without any field alignment at all.
+        Alternatively, 'pack' can be a small integer, and requests for
+        alignment greater than that are ignored (pack=1 is equivalent to
+        packed=True).
+        """
+        self._cdef(csource, override=override, packed=packed, pack=pack)
+
+    def embedding_api(self, csource, packed=False, pack=None):
+        self._cdef(csource, packed=packed, pack=pack, dllexport=True)
+        if self._embedding is None:
+            self._embedding = ''
+
+    def _cdef(self, csource, override=False, **options):
+        if not isinstance(csource, str):    # unicode, on Python 2
+            if not isinstance(csource, basestring):
+                raise TypeError("cdef() argument must be a string")
+            csource = csource.encode('ascii')
+        with self._lock:
+            self._cdef_version = object()
+            self._parser.parse(csource, override=override, **options)
+            self._cdefsources.append(csource)
+            if override:
+                for cache in self._function_caches:
+                    cache.clear()
+            finishlist = self._parser._recomplete
+            if finishlist:
+                self._parser._recomplete = []
+                for tp in finishlist:
+                    tp.finish_backend_type(self, finishlist)
+
+    def dlopen(self, name, flags=0):
+        """Load and return a dynamic library identified by 'name'.
+        The standard C library can be loaded by passing None.
+        Note that functions and types declared by 'ffi.cdef()' are not
+        linked to a particular library, just like C headers; in the
+        library we only look for the actual (untyped) symbols.
+        """
+        if not (isinstance(name, basestring) or
+                name is None or
+                isinstance(name, self.CData)):
+            raise TypeError("dlopen(name): name must be a file name, None, "
+                            "or an already-opened 'void *' handle")
+        with self._lock:
+            lib, function_cache = _make_ffi_library(self, name, flags)
+            self._function_caches.append(function_cache)
+            self._libraries.append(lib)
+        return lib
+
+    def dlclose(self, lib):
+        """Close a library obtained with ffi.dlopen().  After this call,
+        access to functions or variables from the library will fail
+        (possibly with a segmentation fault).
+        """
+        type(lib).__cffi_close__(lib)
+
+    def _typeof_locked(self, cdecl):
+        # call me with the lock!
+        key = cdecl
+        if key in self._parsed_types:
+            return self._parsed_types[key]
+        #
+        if not isinstance(cdecl, str):    # unicode, on Python 2
+            cdecl = cdecl.encode('ascii')
+        #
+        type = self._parser.parse_type(cdecl)
+        really_a_function_type = type.is_raw_function
+        if really_a_function_type:
+            type = type.as_function_pointer()
+        btype = self._get_cached_btype(type)
+        result = btype, really_a_function_type
+        self._parsed_types[key] = result
+        return result
+
+    def _typeof(self, cdecl, consider_function_as_funcptr=False):
+        # string -> ctype object
+        try:
+            result = self._parsed_types[cdecl]
+        except KeyError:
+            with self._lock:
+                result = self._typeof_locked(cdecl)
+        #
+        btype, really_a_function_type = result
+        if really_a_function_type and not consider_function_as_funcptr:
+            raise CDefError("the type %r is a function type, not a "
+                            "pointer-to-function type" % (cdecl,))
+        return btype
+
+    def typeof(self, cdecl):
+        """Parse the C type given as a string and return the
+        corresponding <ctype> object.
+        It can also be used on 'cdata' instance to get its C type.
+        """
+        if isinstance(cdecl, basestring):
+            return self._typeof(cdecl)
+        if isinstance(cdecl, self.CData):
+            return self._backend.typeof(cdecl)
+        if isinstance(cdecl, types.BuiltinFunctionType):
+            res = _builtin_function_type(cdecl)
+            if res is not None:
+                return res
+        if (isinstance(cdecl, types.FunctionType)
+                and hasattr(cdecl, '_cffi_base_type')):
+            with self._lock:
+                return self._get_cached_btype(cdecl._cffi_base_type)
+        raise TypeError(type(cdecl))
+
+    def sizeof(self, cdecl):
+        """Return the size in bytes of the argument.  It can be a
+        string naming a C type, or a 'cdata' instance.
+        """
+        if isinstance(cdecl, basestring):
+            BType = self._typeof(cdecl)
+            return self._backend.sizeof(BType)
+        else:
+            return self._backend.sizeof(cdecl)
+
+    def alignof(self, cdecl):
+        """Return the natural alignment size in bytes of the C type
+        given as a string.
+        """
+        if isinstance(cdecl, basestring):
+            cdecl = self._typeof(cdecl)
+        return self._backend.alignof(cdecl)
+
+    def offsetof(self, cdecl, *fields_or_indexes):
+        """Return the offset of the named field inside the given
+        structure or array, which must be given as a C type name.
+        You can give several field names in case of nested structures.
+        You can also give numeric values which correspond to array
+        items, in case of an array type.
+        """
+        if isinstance(cdecl, basestring):
+            cdecl = self._typeof(cdecl)
+        return self._typeoffsetof(cdecl, *fields_or_indexes)[1]
+
+    def new(self, cdecl, init=None):
+        """Allocate an instance according to the specified C type and
+        return a pointer to it.  The specified C type must be either a
+        pointer or an array: ``new('X *')`` allocates an X and returns
+        a pointer to it, whereas ``new('X[n]')`` allocates an array of
+        n X'es and returns an array referencing it (which works
+        mostly like a pointer, like in C).  You can also use
+        ``new('X[]', n)`` to allocate an array of a non-constant
+        length n.
+
+        The memory is initialized following the rules of declaring a
+        global variable in C: by default it is zero-initialized, but
+        an explicit initializer can be given which can be used to
+        fill all or part of the memory.
+
+        When the returned <cdata> object goes out of scope, the memory
+        is freed.  In other words the returned <cdata> object has
+        ownership of the value of type 'cdecl' that it points to.  This
+        means that the raw data can be used as long as this object is
+        kept alive, but must not be used for a longer time.  Be careful
+        about that when copying the pointer to the memory somewhere
+        else, e.g. into another structure.
+        """
+        if isinstance(cdecl, basestring):
+            cdecl = self._typeof(cdecl)
+        return self._backend.newp(cdecl, init)
+
+    def new_allocator(self, alloc=None, free=None,
+                      should_clear_after_alloc=True):
+        """Return a new allocator, i.e. a function that behaves like ffi.new()
+        but uses the provided low-level 'alloc' and 'free' functions.
+
+        'alloc' is called with the size as argument.  If it returns NULL, a
+        MemoryError is raised.  'free' is called with the result of 'alloc'
+        as argument.  Both can be either Python function or directly C
+        functions.  If 'free' is None, then no free function is called.
+        If both 'alloc' and 'free' are None, the default is used.
+
+        If 'should_clear_after_alloc' is set to False, then the memory
+        returned by 'alloc' is assumed to be already cleared (or you are
+        fine with garbage); otherwise CFFI will clear it.
+        """
+        compiled_ffi = self._backend.FFI()
+        allocator = compiled_ffi.new_allocator(alloc, free,
+                                               should_clear_after_alloc)
+        def allocate(cdecl, init=None):
+            if isinstance(cdecl, basestring):
+                cdecl = self._typeof(cdecl)
+            return allocator(cdecl, init)
+        return allocate
+
+    def cast(self, cdecl, source):
+        """Similar to a C cast: returns an instance of the named C
+        type initialized with the given 'source'.  The source is
+        casted between integers or pointers of any type.
+        """
+        if isinstance(cdecl, basestring):
+            cdecl = self._typeof(cdecl)
+        return self._backend.cast(cdecl, source)
+
+    def string(self, cdata, maxlen=-1):
+        """Return a Python string (or unicode string) from the 'cdata'.
+        If 'cdata' is a pointer or array of characters or bytes, returns
+        the null-terminated string.  The returned string extends until
+        the first null character, or at most 'maxlen' characters.  If
+        'cdata' is an array then 'maxlen' defaults to its length.
+
+        If 'cdata' is a pointer or array of wchar_t, returns a unicode
+        string following the same rules.
+
+        If 'cdata' is a single character or byte or a wchar_t, returns
+        it as a string or unicode string.
+
+        If 'cdata' is an enum, returns the value of the enumerator as a
+        string, or 'NUMBER' if the value is out of range.
+        """
+        return self._backend.string(cdata, maxlen)
+
+    def unpack(self, cdata, length):
+        """Unpack an array of C data of the given length,
+        returning a Python string/unicode/list.
+
+        If 'cdata' is a pointer to 'char', returns a byte string.
+        It does not stop at the first null.  This is equivalent to:
+        ffi.buffer(cdata, length)[:]
+
+        If 'cdata' is a pointer to 'wchar_t', returns a unicode string.
+        'length' is measured in wchar_t's; it is not the size in bytes.
+
+        If 'cdata' is a pointer to anything else, returns a list of
+        'length' items.  This is a faster equivalent to:
+        [cdata[i] for i in range(length)]
+        """
+        return self._backend.unpack(cdata, length)
+
+   #def buffer(self, cdata, size=-1):
+   #    """Return a read-write buffer object that references the raw C data
+   #    pointed to by the given 'cdata'.  The 'cdata' must be a pointer or
+   #    an array.  Can be passed to functions expecting a buffer, or directly
+   #    manipulated with:
+   #
+   #        buf[:]          get a copy of it in a regular string, or
+   #        buf[idx]        as a single character
+   #        buf[:] = ...
+   #        buf[idx] = ...  change the content
+   #    """
+   #    note that 'buffer' is a type, set on this instance by __init__
+
+    def from_buffer(self, cdecl, python_buffer=_unspecified,
+                    require_writable=False):
+        """Return a cdata of the given type pointing to the data of the
+        given Python object, which must support the buffer interface.
+        Note that this is not meant to be used on the built-in types
+        str or unicode (you can build 'char[]' arrays explicitly)
+        but only on objects containing large quantities of raw data
+        in some other format, like 'array.array' or numpy arrays.
+
+        The first argument is optional and default to 'char[]'.
+        """
+        if python_buffer is _unspecified:
+            cdecl, python_buffer = self.BCharA, cdecl
+        elif isinstance(cdecl, basestring):
+            cdecl = self._typeof(cdecl)
+        return self._backend.from_buffer(cdecl, python_buffer,
+                                         require_writable)
+
+    def memmove(self, dest, src, n):
+        """ffi.memmove(dest, src, n) copies n bytes of memory from src to dest.
+
+        Like the C function memmove(), the memory areas may overlap;
+        apart from that it behaves like the C function memcpy().
+
+        'src' can be any cdata ptr or array, or any Python buffer object.
+        'dest' can be any cdata ptr or array, or a writable Python buffer
+        object.  The size to copy, 'n', is always measured in bytes.
+
+        Unlike other methods, this one supports all Python buffer including
+        byte strings and bytearrays---but it still does not support
+        non-contiguous buffers.
+        """
+        return self._backend.memmove(dest, src, n)
+
+    def callback(self, cdecl, python_callable=None, error=None, onerror=None):
+        """Return a callback object or a decorator making such a
+        callback object.  'cdecl' must name a C function pointer type.
+        The callback invokes the specified 'python_callable' (which may
+        be provided either directly or via a decorator).  Important: the
+        callback object must be manually kept alive for as long as the
+        callback may be invoked from the C level.
+        """
+        def callback_decorator_wrap(python_callable):
+            if not callable(python_callable):
+                raise TypeError("the 'python_callable' argument "
+                                "is not callable")
+            return self._backend.callback(cdecl, python_callable,
+                                          error, onerror)
+        if isinstance(cdecl, basestring):
+            cdecl = self._typeof(cdecl, consider_function_as_funcptr=True)
+        if python_callable is None:
+            return callback_decorator_wrap                # decorator mode
+        else:
+            return callback_decorator_wrap(python_callable)  # direct mode
+
+    def getctype(self, cdecl, replace_with=''):
+        """Return a string giving the C type 'cdecl', which may be itself
+        a string or a <ctype> object.  If 'replace_with' is given, it gives
+        extra text to append (or insert for more complicated C types), like
+        a variable name, or '*' to get actually the C type 'pointer-to-cdecl'.
+        """
+        if isinstance(cdecl, basestring):
+            cdecl = self._typeof(cdecl)
+        replace_with = replace_with.strip()
+        if (replace_with.startswith('*')
+                and '&[' in self._backend.getcname(cdecl, '&')):
+            replace_with = '(%s)' % replace_with
+        elif replace_with and not replace_with[0] in '[(':
+            replace_with = ' ' + replace_with
+        return self._backend.getcname(cdecl, replace_with)
+
+    def gc(self, cdata, destructor, size=0):
+        """Return a new cdata object that points to the same
+        data.  Later, when this new cdata object is garbage-collected,
+        'destructor(old_cdata_object)' will be called.
+
+        The optional 'size' gives an estimate of the size, used to
+        trigger the garbage collection more eagerly.  So far only used
+        on PyPy.  It tells the GC that the returned object keeps alive
+        roughly 'size' bytes of external memory.
+        """
+        return self._backend.gcp(cdata, destructor, size)
+
+    def _get_cached_btype(self, type):
+        assert self._lock.acquire(False) is False
+        # call me with the lock!
+        try:
+            BType = self._cached_btypes[type]
+        except KeyError:
+            finishlist = []
+            BType = type.get_cached_btype(self, finishlist)
+            for type in finishlist:
+                type.finish_backend_type(self, finishlist)
+        return BType
+
+    def verify(self, source='', tmpdir=None, **kwargs):
+        """Verify that the current ffi signatures compile on this
+        machine, and return a dynamic library object.  The dynamic
+        library can be used to call functions and access global
+        variables declared in this 'ffi'.  The library is compiled
+        by the C compiler: it gives you C-level API compatibility
+        (including calling macros).  This is unlike 'ffi.dlopen()',
+        which requires binary compatibility in the signatures.
+        """
+        from .verifier import Verifier, _caller_dir_pycache
+        #
+        # If set_unicode(True) was called, insert the UNICODE and
+        # _UNICODE macro declarations
+        if self._windows_unicode:
+            self._apply_windows_unicode(kwargs)
+        #
+        # Set the tmpdir here, and not in Verifier.__init__: it picks
+        # up the caller's directory, which we want to be the caller of
+        # ffi.verify(), as opposed to the caller of Veritier().
+        tmpdir = tmpdir or _caller_dir_pycache()
+        #
+        # Make a Verifier() and use it to load the library.
+        self.verifier = Verifier(self, source, tmpdir, **kwargs)
+        lib = self.verifier.load_library()
+        #
+        # Save the loaded library for keep-alive purposes, even
+        # if the caller doesn't keep it alive itself (it should).
+        self._libraries.append(lib)
+        return lib
+
+    def _get_errno(self):
+        return self._backend.get_errno()
+    def _set_errno(self, errno):
+        self._backend.set_errno(errno)
+    errno = property(_get_errno, _set_errno, None,
+                     "the value of 'errno' from/to the C calls")
+
+    def getwinerror(self, code=-1):
+        return self._backend.getwinerror(code)
+
+    def _pointer_to(self, ctype):
+        with self._lock:
+            return model.pointer_cache(self, ctype)
+
+    def addressof(self, cdata, *fields_or_indexes):
+        """Return the address of a <cdata 'struct-or-union'>.
+        If 'fields_or_indexes' are given, returns the address of that
+        field or array item in the structure or array, recursively in
+        case of nested structures.
+        """
+        try:
+            ctype = self._backend.typeof(cdata)
+        except TypeError:
+            if '__addressof__' in type(cdata).__dict__:
+                return type(cdata).__addressof__(cdata, *fields_or_indexes)
+            raise
+        if fields_or_indexes:
+            ctype, offset = self._typeoffsetof(ctype, *fields_or_indexes)
+        else:
+            if ctype.kind == "pointer":
+                raise TypeError("addressof(pointer)")
+            offset = 0
+        ctypeptr = self._pointer_to(ctype)
+        return self._backend.rawaddressof(ctypeptr, cdata, offset)
+
+    def _typeoffsetof(self, ctype, field_or_index, *fields_or_indexes):
+        ctype, offset = self._backend.typeoffsetof(ctype, field_or_index)
+        for field1 in fields_or_indexes:
+            ctype, offset1 = self._backend.typeoffsetof(ctype, field1, 1)
+            offset += offset1
+        return ctype, offset
+
+    def include(self, ffi_to_include):
+        """Includes the typedefs, structs, unions and enums defined
+        in another FFI instance.  Usage is similar to a #include in C,
+        where a part of the program might include types defined in
+        another part for its own usage.  Note that the include()
+        method has no effect on functions, constants and global
+        variables, which must anyway be accessed directly from the
+        lib object returned by the original FFI instance.
+        """
+        if not isinstance(ffi_to_include, FFI):
+            raise TypeError("ffi.include() expects an argument that is also of"
+                            " type cffi.FFI, not %r" % (
+                                type(ffi_to_include).__name__,))
+        if ffi_to_include is self:
+            raise ValueError("self.include(self)")
+        with ffi_to_include._lock:
+            with self._lock:
+                self._parser.include(ffi_to_include._parser)
+                self._cdefsources.append('[')
+                self._cdefsources.extend(ffi_to_include._cdefsources)
+                self._cdefsources.append(']')
+                self._included_ffis.append(ffi_to_include)
+
+    def new_handle(self, x):
+        return self._backend.newp_handle(self.BVoidP, x)
+
+    def from_handle(self, x):
+        return self._backend.from_handle(x)
+
+    def release(self, x):
+        self._backend.release(x)
+
+    def set_unicode(self, enabled_flag):
+        """Windows: if 'enabled_flag' is True, enable the UNICODE and
+        _UNICODE defines in C, and declare the types like TCHAR and LPTCSTR
+        to be (pointers to) wchar_t.  If 'enabled_flag' is False,
+        declare these types to be (pointers to) plain 8-bit characters.
+        This is mostly for backward compatibility; you usually want True.
+        """
+        if self._windows_unicode is not None:
+            raise ValueError("set_unicode() can only be called once")
+        enabled_flag = bool(enabled_flag)
+        if enabled_flag:
+            self.cdef("typedef wchar_t TBYTE;"
+                      "typedef wchar_t TCHAR;"
+                      "typedef const wchar_t *LPCTSTR;"
+                      "typedef const wchar_t *PCTSTR;"
+                      "typedef wchar_t *LPTSTR;"
+                      "typedef wchar_t *PTSTR;"
+                      "typedef TBYTE *PTBYTE;"
+                      "typedef TCHAR *PTCHAR;")
+        else:
+            self.cdef("typedef char TBYTE;"
+                      "typedef char TCHAR;"
+                      "typedef const char *LPCTSTR;"
+                      "typedef const char *PCTSTR;"
+                      "typedef char *LPTSTR;"
+                      "typedef char *PTSTR;"
+                      "typedef TBYTE *PTBYTE;"
+                      "typedef TCHAR *PTCHAR;")
+        self._windows_unicode = enabled_flag
+
+    def _apply_windows_unicode(self, kwds):
+        defmacros = kwds.get('define_macros', ())
+        if not isinstance(defmacros, (list, tuple)):
+            raise TypeError("'define_macros' must be a list or tuple")
+        defmacros = list(defmacros) + [('UNICODE', '1'),
+                                       ('_UNICODE', '1')]
+        kwds['define_macros'] = defmacros
+
+    def _apply_embedding_fix(self, kwds):
+        # must include an argument like "-lpython2.7" for the compiler
+        def ensure(key, value):
+            lst = kwds.setdefault(key, [])
+            if value not in lst:
+                lst.append(value)
+        #
+        if '__pypy__' in sys.builtin_module_names:
+            import os
+            if sys.platform == "win32":
+                # we need 'libpypy-c.lib'.  Current distributions of
+                # pypy (>= 4.1) contain it as 'libs/python27.lib'.
+                pythonlib = "python{0[0]}{0[1]}".format(sys.version_info)
+                if hasattr(sys, 'prefix'):
+                    ensure('library_dirs', os.path.join(sys.prefix, 'libs'))
+            else:
+                # we need 'libpypy-c.{so,dylib}', which should be by
+                # default located in 'sys.prefix/bin' for installed
+                # systems.
+                if sys.version_info < (3,):
+                    pythonlib = "pypy-c"
+                else:
+                    pythonlib = "pypy3-c"
+                if hasattr(sys, 'prefix'):
+                    ensure('library_dirs', os.path.join(sys.prefix, 'bin'))
+            # On uninstalled pypy's, the libpypy-c is typically found in
+            # .../pypy/goal/.
+            if hasattr(sys, 'prefix'):
+                ensure('library_dirs', os.path.join(sys.prefix, 'pypy', 'goal'))
+        else:
+            if sys.platform == "win32":
+                template = "python%d%d"
+                if hasattr(sys, 'gettotalrefcount'):
+                    template += '_d'
+            else:
+                try:
+                    import sysconfig
+                except ImportError:    # 2.6
+                    from cffi._shimmed_dist_utils import sysconfig
+                template = "python%d.%d"
+                if sysconfig.get_config_var('DEBUG_EXT'):
+                    template += sysconfig.get_config_var('DEBUG_EXT')
+            pythonlib = (template %
+                    (sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
+            if hasattr(sys, 'abiflags'):
+                pythonlib += sys.abiflags
+        ensure('libraries', pythonlib)
+        if sys.platform == "win32":
+            ensure('extra_link_args', '/MANIFEST')
+
+    def set_source(self, module_name, source, source_extension='.c', **kwds):
+        import os
+        if hasattr(self, '_assigned_source'):
+            raise ValueError("set_source() cannot be called several times "
+                             "per ffi object")
+        if not isinstance(module_name, basestring):
+            raise TypeError("'module_name' must be a string")
+        if os.sep in module_name or (os.altsep and os.altsep in module_name):
+            raise ValueError("'module_name' must not contain '/': use a dotted "
+                             "name to make a 'package.module' location")
+        self._assigned_source = (str(module_name), source,
+                                 source_extension, kwds)
+
+    def set_source_pkgconfig(self, module_name, pkgconfig_libs, source,
+                             source_extension='.c', **kwds):
+        from . import pkgconfig
+        if not isinstance(pkgconfig_libs, list):
+            raise TypeError("the pkgconfig_libs argument must be a list "
+                            "of package names")
+        kwds2 = pkgconfig.flags_from_pkgconfig(pkgconfig_libs)
+        pkgconfig.merge_flags(kwds, kwds2)
+        self.set_source(module_name, source, source_extension, **kwds)
+
+    def distutils_extension(self, tmpdir='build', verbose=True):
+        from cffi._shimmed_dist_utils import mkpath
+        from .recompiler import recompile
+        #
+        if not hasattr(self, '_assigned_source'):
+            if hasattr(self, 'verifier'):     # fallback, 'tmpdir' ignored
+                return self.verifier.get_extension()
+            raise ValueError("set_source() must be called before"
+                             " distutils_extension()")
+        module_name, source, source_extension, kwds = self._assigned_source
+        if source is None:
+            raise TypeError("distutils_extension() is only for C extension "
+                            "modules, not for dlopen()-style pure Python "
+                            "modules")
+        mkpath(tmpdir)
+        ext, updated = recompile(self, module_name,
+                                 source, tmpdir=tmpdir, extradir=tmpdir,
+                                 source_extension=source_extension,
+                                 call_c_compiler=False, **kwds)
+        if verbose:
+            if updated:
+                sys.stderr.write("regenerated: %r\n" % (ext.sources[0],))
+            else:
+                sys.stderr.write("not modified: %r\n" % (ext.sources[0],))
+        return ext
+
+    def emit_c_code(self, filename):
+        from .recompiler import recompile
+        #
+        if not hasattr(self, '_assigned_source'):
+            raise ValueError("set_source() must be called before emit_c_code()")
+        module_name, source, source_extension, kwds = self._assigned_source
+        if source is None:
+            raise TypeError("emit_c_code() is only for C extension modules, "
+                            "not for dlopen()-style pure Python modules")
+        recompile(self, module_name, source,
+                  c_file=filename, call_c_compiler=False,
+                  uses_ffiplatform=False, **kwds)
+
+    def emit_python_code(self, filename):
+        from .recompiler import recompile
+        #
+        if not hasattr(self, '_assigned_source'):
+            raise ValueError("set_source() must be called before emit_c_code()")
+        module_name, source, source_extension, kwds = self._assigned_source
+        if source is not None:
+            raise TypeError("emit_python_code() is only for dlopen()-style "
+                            "pure Python modules, not for C extension modules")
+        recompile(self, module_name, source,
+                  c_file=filename, call_c_compiler=False,
+                  uses_ffiplatform=False, **kwds)
+
+    def compile(self, tmpdir='.', verbose=0, target=None, debug=None):
+        """The 'target' argument gives the final file name of the
+        compiled DLL.  Use '*' to force distutils' choice, suitable for
+        regular CPython C API modules.  Use a file name ending in '.*'
+        to ask for the system's default extension for dynamic libraries
+        (.so/.dll/.dylib).
+
+        The default is '*' when building a non-embedded C API extension,
+        and (module_name + '.*') when building an embedded library.
+        """
+        from .recompiler import recompile
+        #
+        if not hasattr(self, '_assigned_source'):
+            raise ValueError("set_source() must be called before compile()")
+        module_name, source, source_extension, kwds = self._assigned_source
+        return recompile(self, module_name, source, tmpdir=tmpdir,
+                         target=target, source_extension=source_extension,
+                         compiler_verbose=verbose, debug=debug, **kwds)
+
+    def init_once(self, func, tag):
+        # Read _init_once_cache[tag], which is either (False, lock) if
+        # we're calling the function now in some thread, or (True, result).
+        # Don't call setdefault() in most cases, to avoid allocating and
+        # immediately freeing a lock; but still use setdefaut() to avoid
+        # races.
+        try:
+            x = self._init_once_cache[tag]
+        except KeyError:
+            x = self._init_once_cache.setdefault(tag, (False, allocate_lock()))
+        # Common case: we got (True, result), so we return the result.
+        if x[0]:
+            return x[1]
+        # Else, it's a lock.  Acquire it to serialize the following tests.
+        with x[1]:
+            # Read again from _init_once_cache the current status.
+            x = self._init_once_cache[tag]
+            if x[0]:
+                return x[1]
+            # Call the function and store the result back.
+            result = func()
+            self._init_once_cache[tag] = (True, result)
+        return result
+
+    def embedding_init_code(self, pysource):
+        if self._embedding:
+            raise ValueError("embedding_init_code() can only be called once")
+        # fix 'pysource' before it gets dumped into the C file:
+        # - remove empty lines at the beginning, so it starts at "line 1"
+        # - dedent, if all non-empty lines are indented
+        # - check for SyntaxErrors
+        import re
+        match = re.match(r'\s*\n', pysource)
+        if match:
+            pysource = pysource[match.end():]
+        lines = pysource.splitlines() or ['']
+        prefix = re.match(r'\s*', lines[0]).group()
+        for i in range(1, len(lines)):
+            line = lines[i]
+            if line.rstrip():
+                while not line.startswith(prefix):
+                    prefix = prefix[:-1]
+        i = len(prefix)
+        lines = [line[i:]+'\n' for line in lines]
+        pysource = ''.join(lines)
+        #
+        compile(pysource, "cffi_init", "exec")
+        #
+        self._embedding = pysource
+
+    def def_extern(self, *args, **kwds):
+        raise ValueError("ffi.def_extern() is only available on API-mode FFI "
+                         "objects")
+
+    def list_types(self):
+        """Returns the user type names known to this FFI instance.
+        This returns a tuple containing three lists of names:
+        (typedef_names, names_of_structs, names_of_unions)
+        """
+        typedefs = []
+        structs = []
+        unions = []
+        for key in self._parser._declarations:
+            if key.startswith('typedef '):
+                typedefs.append(key[8:])
+            elif key.startswith('struct '):
+                structs.append(key[7:])
+            elif key.startswith('union '):
+                unions.append(key[6:])
+        typedefs.sort()
+        structs.sort()
+        unions.sort()
+        return (typedefs, structs, unions)
+
+
+def _load_backend_lib(backend, name, flags):
+    import os
+    if not isinstance(name, basestring):
+        if sys.platform != "win32" or name is not None:
+            return backend.load_library(name, flags)
+        name = "c"    # Windows: load_library(None) fails, but this works
+                      # on Python 2 (backward compatibility hack only)
+    first_error = None
+    if '.' in name or '/' in name or os.sep in name:
+        try:
+            return backend.load_library(name, flags)
+        except OSError as e:
+            first_error = e
+    import ctypes.util
+    path = ctypes.util.find_library(name)
+    if path is None:
+        if name == "c" and sys.platform == "win32" and sys.version_info >= (3,):
+            raise OSError("dlopen(None) cannot work on Windows for Python 3 "
+                          "(see http://bugs.python.org/issue23606)")
+        msg = ("ctypes.util.find_library() did not manage "
+               "to locate a library called %r" % (name,))
+        if first_error is not None:
+            msg = "%s.  Additionally, %s" % (first_error, msg)
+        raise OSError(msg)
+    return backend.load_library(path, flags)
+
+def _make_ffi_library(ffi, libname, flags):
+    backend = ffi._backend
+    backendlib = _load_backend_lib(backend, libname, flags)
+    #
+    def accessor_function(name):
+        key = 'function ' + name
+        tp, _ = ffi._parser._declarations[key]
+        BType = ffi._get_cached_btype(tp)
+        value = backendlib.load_function(BType, name)
+        library.__dict__[name] = value
+    #
+    def accessor_variable(name):
+        key = 'variable ' + name
+        tp, _ = ffi._parser._declarations[key]
+        BType = ffi._get_cached_btype(tp)
+        read_variable = backendlib.read_variable
+        write_variable = backendlib.write_variable
+        setattr(FFILibrary, name, property(
+            lambda self: read_variable(BType, name),
+            lambda self, value: write_variable(BType, name, value)))
+    #
+    def addressof_var(name):
+        try:
+            return addr_variables[name]
+        except KeyError:
+            with ffi._lock:
+                if name not in addr_variables:
+                    key = 'variable ' + name
+                    tp, _ = ffi._parser._declarations[key]
+                    BType = ffi._get_cached_btype(tp)
+                    if BType.kind != 'array':
+                        BType = model.pointer_cache(ffi, BType)
+                    p = backendlib.load_function(BType, name)
+                    addr_variables[name] = p
+            return addr_variables[name]
+    #
+    def accessor_constant(name):
+        raise NotImplementedError("non-integer constant '%s' cannot be "
+                                  "accessed from a dlopen() library" % (name,))
+    #
+    def accessor_int_constant(name):
+        library.__dict__[name] = ffi._parser._int_constants[name]
+    #
+    accessors = {}
+    accessors_version = [False]
+    addr_variables = {}
+    #
+    def update_accessors():
+        if accessors_version[0] is ffi._cdef_version:
+            return
+        #
+        for key, (tp, _) in ffi._parser._declarations.items():
+            if not isinstance(tp, model.EnumType):
+                tag, name = key.split(' ', 1)
+                if tag == 'function':
+                    accessors[name] = accessor_function
+                elif tag == 'variable':
+                    accessors[name] = accessor_variable
+                elif tag == 'constant':
+                    accessors[name] = accessor_constant
+            else:
+                for i, enumname in enumerate(tp.enumerators):
+                    def accessor_enum(name, tp=tp, i=i):
+                        tp.check_not_partial()
+                        library.__dict__[name] = tp.enumvalues[i]
+                    accessors[enumname] = accessor_enum
+        for name in ffi._parser._int_constants:
+            accessors.setdefault(name, accessor_int_constant)
+        accessors_version[0] = ffi._cdef_version
+    #
+    def make_accessor(name):
+        with ffi._lock:
+            if name in library.__dict__ or name in FFILibrary.__dict__:
+                return    # added by another thread while waiting for the lock
+            if name not in accessors:
+                update_accessors()
+                if name not in accessors:
+                    raise AttributeError(name)
+            accessors[name](name)
+    #
+    class FFILibrary(object):
+        def __getattr__(self, name):
+            make_accessor(name)
+            return getattr(self, name)
+        def __setattr__(self, name, value):
+            try:
+                property = getattr(self.__class__, name)
+            except AttributeError:
+                make_accessor(name)
+                setattr(self, name, value)
+            else:
+                property.__set__(self, value)
+        def __dir__(self):
+            with ffi._lock:
+                update_accessors()
+                return accessors.keys()
+        def __addressof__(self, name):
+            if name in library.__dict__:
+                return library.__dict__[name]
+            if name in FFILibrary.__dict__:
+                return addressof_var(name)
+            make_accessor(name)
+            if name in library.__dict__:
+                return library.__dict__[name]
+            if name in FFILibrary.__dict__:
+                return addressof_var(name)
+            raise AttributeError("cffi library has no function or "
+                                 "global variable named '%s'" % (name,))
+        def __cffi_close__(self):
+            backendlib.close_lib()
+            self.__dict__.clear()
+    #
+    if isinstance(libname, basestring):
+        try:
+            if not isinstance(libname, str):    # unicode, on Python 2
+                libname = libname.encode('utf-8')
+            FFILibrary.__name__ = 'FFILibrary_%s' % libname
+        except UnicodeError:
+            pass
+    library = FFILibrary()
+    return library, library.__dict__
+
+def _builtin_function_type(func):
+    # a hack to make at least ffi.typeof(builtin_function) work,
+    # if the builtin function was obtained by 'vengine_cpy'.
+    import sys
+    try:
+        module = sys.modules[func.__module__]
+        ffi = module._cffi_original_ffi
+        types_of_builtin_funcs = module._cffi_types_of_builtin_funcs
+        tp = types_of_builtin_funcs[func]
+    except (KeyError, AttributeError, TypeError):
+        return None
+    else:
+        with ffi._lock:
+            return ffi._get_cached_btype(tp)

.venv/lib/python3.12/site-packages/cffi/cffi_opcode.py

@@ -0,0 +1,187 @@
+from .error import VerificationError
+
+class CffiOp(object):
+    def __init__(self, op, arg):
+        self.op = op
+        self.arg = arg
+
+    def as_c_expr(self):
+        if self.op is None:
+            assert isinstance(self.arg, str)
+            return '(_cffi_opcode_t)(%s)' % (self.arg,)
+        classname = CLASS_NAME[self.op]
+        return '_CFFI_OP(_CFFI_OP_%s, %s)' % (classname, self.arg)
+
+    def as_python_bytes(self):
+        if self.op is None and self.arg.isdigit():
+            value = int(self.arg)     # non-negative: '-' not in self.arg
+            if value >= 2**31:
+                raise OverflowError("cannot emit %r: limited to 2**31-1"
+                                    % (self.arg,))
+            return format_four_bytes(value)
+        if isinstance(self.arg, str):
+            raise VerificationError("cannot emit to Python: %r" % (self.arg,))
+        return format_four_bytes((self.arg << 8) | self.op)
+
+    def __str__(self):
+        classname = CLASS_NAME.get(self.op, self.op)
+        return '(%s %s)' % (classname, self.arg)
+
+def format_four_bytes(num):
+    return '\\x%02X\\x%02X\\x%02X\\x%02X' % (
+        (num >> 24) & 0xFF,
+        (num >> 16) & 0xFF,
+        (num >>  8) & 0xFF,
+        (num      ) & 0xFF)
+
+OP_PRIMITIVE       = 1
+OP_POINTER         = 3
+OP_ARRAY           = 5
+OP_OPEN_ARRAY      = 7
+OP_STRUCT_UNION    = 9
+OP_ENUM            = 11
+OP_FUNCTION        = 13
+OP_FUNCTION_END    = 15
+OP_NOOP            = 17
+OP_BITFIELD        = 19
+OP_TYPENAME        = 21
+OP_CPYTHON_BLTN_V  = 23   # varargs
+OP_CPYTHON_BLTN_N  = 25   # noargs
+OP_CPYTHON_BLTN_O  = 27   # O  (i.e. a single arg)
+OP_CONSTANT        = 29
+OP_CONSTANT_INT    = 31
+OP_GLOBAL_VAR      = 33
+OP_DLOPEN_FUNC     = 35
+OP_DLOPEN_CONST    = 37
+OP_GLOBAL_VAR_F    = 39
+OP_EXTERN_PYTHON   = 41
+
+PRIM_VOID          = 0
+PRIM_BOOL          = 1
+PRIM_CHAR          = 2
+PRIM_SCHAR         = 3
+PRIM_UCHAR         = 4
+PRIM_SHORT         = 5
+PRIM_USHORT        = 6
+PRIM_INT           = 7
+PRIM_UINT          = 8
+PRIM_LONG          = 9
+PRIM_ULONG         = 10
+PRIM_LONGLONG      = 11
+PRIM_ULONGLONG     = 12
+PRIM_FLOAT         = 13
+PRIM_DOUBLE        = 14
+PRIM_LONGDOUBLE    = 15
+
+PRIM_WCHAR         = 16
+PRIM_INT8          = 17
+PRIM_UINT8         = 18
+PRIM_INT16         = 19
+PRIM_UINT16        = 20
+PRIM_INT32         = 21
+PRIM_UINT32        = 22
+PRIM_INT64         = 23
+PRIM_UINT64        = 24
+PRIM_INTPTR        = 25
+PRIM_UINTPTR       = 26
+PRIM_PTRDIFF       = 27
+PRIM_SIZE          = 28
+PRIM_SSIZE         = 29
+PRIM_INT_LEAST8    = 30
+PRIM_UINT_LEAST8   = 31
+PRIM_INT_LEAST16   = 32
+PRIM_UINT_LEAST16  = 33
+PRIM_INT_LEAST32   = 34
+PRIM_UINT_LEAST32  = 35
+PRIM_INT_LEAST64   = 36
+PRIM_UINT_LEAST64  = 37
+PRIM_INT_FAST8     = 38
+PRIM_UINT_FAST8    = 39
+PRIM_INT_FAST16    = 40
+PRIM_UINT_FAST16   = 41
+PRIM_INT_FAST32    = 42
+PRIM_UINT_FAST32   = 43
+PRIM_INT_FAST64    = 44
+PRIM_UINT_FAST64   = 45
+PRIM_INTMAX        = 46
+PRIM_UINTMAX       = 47
+PRIM_FLOATCOMPLEX  = 48
+PRIM_DOUBLECOMPLEX = 49
+PRIM_CHAR16        = 50
+PRIM_CHAR32        = 51
+
+_NUM_PRIM          = 52
+_UNKNOWN_PRIM          = -1
+_UNKNOWN_FLOAT_PRIM    = -2
+_UNKNOWN_LONG_DOUBLE   = -3
+
+_IO_FILE_STRUCT        = -1
+
+PRIMITIVE_TO_INDEX = {
+    'char':               PRIM_CHAR,
+    'short':              PRIM_SHORT,
+    'int':                PRIM_INT,
+    'long':               PRIM_LONG,
+    'long long':          PRIM_LONGLONG,
+    'signed char':        PRIM_SCHAR,
+    'unsigned char':      PRIM_UCHAR,
+    'unsigned short':     PRIM_USHORT,
+    'unsigned int':       PRIM_UINT,
+    'unsigned long':      PRIM_ULONG,
+    'unsigned long long': PRIM_ULONGLONG,
+    'float':              PRIM_FLOAT,
+    'double':             PRIM_DOUBLE,
+    'long double':        PRIM_LONGDOUBLE,
+    '_cffi_float_complex_t': PRIM_FLOATCOMPLEX,
+    '_cffi_double_complex_t': PRIM_DOUBLECOMPLEX,
+    '_Bool':              PRIM_BOOL,
+    'wchar_t':            PRIM_WCHAR,
+    'char16_t':           PRIM_CHAR16,
+    'char32_t':           PRIM_CHAR32,
+    'int8_t':             PRIM_INT8,
+    'uint8_t':            PRIM_UINT8,
+    'int16_t':            PRIM_INT16,
+    'uint16_t':           PRIM_UINT16,
+    'int32_t':            PRIM_INT32,
+    'uint32_t':           PRIM_UINT32,
+    'int64_t':            PRIM_INT64,
+    'uint64_t':           PRIM_UINT64,
+    'intptr_t':           PRIM_INTPTR,
+    'uintptr_t':          PRIM_UINTPTR,
+    'ptrdiff_t':          PRIM_PTRDIFF,
+    'size_t':             PRIM_SIZE,
+    'ssize_t':            PRIM_SSIZE,
+    'int_least8_t':       PRIM_INT_LEAST8,
+    'uint_least8_t':      PRIM_UINT_LEAST8,
+    'int_least16_t':      PRIM_INT_LEAST16,
+    'uint_least16_t':     PRIM_UINT_LEAST16,
+    'int_least32_t':      PRIM_INT_LEAST32,
+    'uint_least32_t':     PRIM_UINT_LEAST32,
+    'int_least64_t':      PRIM_INT_LEAST64,
+    'uint_least64_t':     PRIM_UINT_LEAST64,
+    'int_fast8_t':        PRIM_INT_FAST8,
+    'uint_fast8_t':       PRIM_UINT_FAST8,
+    'int_fast16_t':       PRIM_INT_FAST16,
+    'uint_fast16_t':      PRIM_UINT_FAST16,
+    'int_fast32_t':       PRIM_INT_FAST32,
+    'uint_fast32_t':      PRIM_UINT_FAST32,
+    'int_fast64_t':       PRIM_INT_FAST64,
+    'uint_fast64_t':      PRIM_UINT_FAST64,
+    'intmax_t':           PRIM_INTMAX,
+    'uintmax_t':          PRIM_UINTMAX,
+    }
+
+F_UNION         = 0x01
+F_CHECK_FIELDS  = 0x02
+F_PACKED        = 0x04
+F_EXTERNAL      = 0x08
+F_OPAQUE        = 0x10
+
+G_FLAGS = dict([('_CFFI_' + _key, globals()[_key])
+                for _key in ['F_UNION', 'F_CHECK_FIELDS', 'F_PACKED',
+                             'F_EXTERNAL', 'F_OPAQUE']])
+
+CLASS_NAME = {}
+for _name, _value in list(globals().items()):
+    if _name.startswith('OP_') and isinstance(_value, int):
+        CLASS_NAME[_value] = _name[3:]

.venv/lib/python3.12/site-packages/cffi/commontypes.py

@@ -0,0 +1,82 @@
+import sys
+from . import model
+from .error import FFIError
+
+
+COMMON_TYPES = {}
+
+try:
+    # fetch "bool" and all simple Windows types
+    from _cffi_backend import _get_common_types
+    _get_common_types(COMMON_TYPES)
+except ImportError:
+    pass
+
+COMMON_TYPES['FILE'] = model.unknown_type('FILE', '_IO_FILE')
+COMMON_TYPES['bool'] = '_Bool'    # in case we got ImportError above
+COMMON_TYPES['float _Complex'] = '_cffi_float_complex_t'
+COMMON_TYPES['double _Complex'] = '_cffi_double_complex_t'
+
+for _type in model.PrimitiveType.ALL_PRIMITIVE_TYPES:
+    if _type.endswith('_t'):
+        COMMON_TYPES[_type] = _type
+del _type
+
+_CACHE = {}
+
+def resolve_common_type(parser, commontype):
+    try:
+        return _CACHE[commontype]
+    except KeyError:
+        cdecl = COMMON_TYPES.get(commontype, commontype)
+        if not isinstance(cdecl, str):
+            result, quals = cdecl, 0    # cdecl is already a BaseType
+        elif cdecl in model.PrimitiveType.ALL_PRIMITIVE_TYPES:
+            result, quals = model.PrimitiveType(cdecl), 0
+        elif cdecl == 'set-unicode-needed':
+            raise FFIError("The Windows type %r is only available after "
+                           "you call ffi.set_unicode()" % (commontype,))
+        else:
+            if commontype == cdecl:
+                raise FFIError(
+                    "Unsupported type: %r.  Please look at "
+        "http://cffi.readthedocs.io/en/latest/cdef.html#ffi-cdef-limitations "
+                    "and file an issue if you think this type should really "
+                    "be supported." % (commontype,))
+            result, quals = parser.parse_type_and_quals(cdecl)   # recursive
+
+        assert isinstance(result, model.BaseTypeByIdentity)
+        _CACHE[commontype] = result, quals
+        return result, quals
+
+
+# ____________________________________________________________
+# extra types for Windows (most of them are in commontypes.c)
+
+
+def win_common_types():
+    return {
+        "UNICODE_STRING": model.StructType(
+            "_UNICODE_STRING",
+            ["Length",
+             "MaximumLength",
+             "Buffer"],
+            [model.PrimitiveType("unsigned short"),
+             model.PrimitiveType("unsigned short"),
+             model.PointerType(model.PrimitiveType("wchar_t"))],
+            [-1, -1, -1]),
+        "PUNICODE_STRING": "UNICODE_STRING *",
+        "PCUNICODE_STRING": "const UNICODE_STRING *",
+
+        "TBYTE": "set-unicode-needed",
+        "TCHAR": "set-unicode-needed",
+        "LPCTSTR": "set-unicode-needed",
+        "PCTSTR": "set-unicode-needed",
+        "LPTSTR": "set-unicode-needed",
+        "PTSTR": "set-unicode-needed",
+        "PTBYTE": "set-unicode-needed",
+        "PTCHAR": "set-unicode-needed",
+        }
+
+if sys.platform == 'win32':
+    COMMON_TYPES.update(win_common_types())

.venv/lib/python3.12/site-packages/cffi/error.py

@@ -0,0 +1,31 @@
+
+class FFIError(Exception):
+    __module__ = 'cffi'
+
+class CDefError(Exception):
+    __module__ = 'cffi'
+    def __str__(self):
+        try:
+            current_decl = self.args[1]
+            filename = current_decl.coord.file
+            linenum = current_decl.coord.line
+            prefix = '%s:%d: ' % (filename, linenum)
+        except (AttributeError, TypeError, IndexError):
+            prefix = ''
+        return '%s%s' % (prefix, self.args[0])
+
+class VerificationError(Exception):
+    """ An error raised when verification fails
+    """
+    __module__ = 'cffi'
+
+class VerificationMissing(Exception):
+    """ An error raised when incomplete structures are passed into
+    cdef, but no verification has been done
+    """
+    __module__ = 'cffi'
+
+class PkgConfigError(Exception):
+    """ An error raised for missing modules in pkg-config
+    """
+    __module__ = 'cffi'

.venv/lib/python3.12/site-packages/cffi/ffiplatform.py

@@ -0,0 +1,113 @@
+import sys, os
+from .error import VerificationError
+
+
+LIST_OF_FILE_NAMES = ['sources', 'include_dirs', 'library_dirs',
+                      'extra_objects', 'depends']
+
+def get_extension(srcfilename, modname, sources=(), **kwds):
+    from cffi._shimmed_dist_utils import Extension
+    allsources = [srcfilename]
+    for src in sources:
+        allsources.append(os.path.normpath(src))
+    return Extension(name=modname, sources=allsources, **kwds)
+
+def compile(tmpdir, ext, compiler_verbose=0, debug=None):
+    """Compile a C extension module using distutils."""
+
+    saved_environ = os.environ.copy()
+    try:
+        outputfilename = _build(tmpdir, ext, compiler_verbose, debug)
+        outputfilename = os.path.abspath(outputfilename)
+    finally:
+        # workaround for a distutils bugs where some env vars can
+        # become longer and longer every time it is used
+        for key, value in saved_environ.items():
+            if os.environ.get(key) != value:
+                os.environ[key] = value
+    return outputfilename
+
+def _build(tmpdir, ext, compiler_verbose=0, debug=None):
+    # XXX compact but horrible :-(
+    from cffi._shimmed_dist_utils import Distribution, CompileError, LinkError, set_threshold, set_verbosity
+
+    dist = Distribution({'ext_modules': [ext]})
+    dist.parse_config_files()
+    options = dist.get_option_dict('build_ext')
+    if debug is None:
+        debug = sys.flags.debug
+    options['debug'] = ('ffiplatform', debug)
+    options['force'] = ('ffiplatform', True)
+    options['build_lib'] = ('ffiplatform', tmpdir)
+    options['build_temp'] = ('ffiplatform', tmpdir)
+    #
+    try:
+        old_level = set_threshold(0) or 0
+        try:
+            set_verbosity(compiler_verbose)
+            dist.run_command('build_ext')
+            cmd_obj = dist.get_command_obj('build_ext')
+            [soname] = cmd_obj.get_outputs()
+        finally:
+            set_threshold(old_level)
+    except (CompileError, LinkError) as e:
+        raise VerificationError('%s: %s' % (e.__class__.__name__, e))
+    #
+    return soname
+
+try:
+    from os.path import samefile
+except ImportError:
+    def samefile(f1, f2):
+        return os.path.abspath(f1) == os.path.abspath(f2)
+
+def maybe_relative_path(path):
+    if not os.path.isabs(path):
+        return path      # already relative
+    dir = path
+    names = []
+    while True:
+        prevdir = dir
+        dir, name = os.path.split(prevdir)
+        if dir == prevdir or not dir:
+            return path     # failed to make it relative
+        names.append(name)
+        try:
+            if samefile(dir, os.curdir):
+                names.reverse()
+                return os.path.join(*names)
+        except OSError:
+            pass
+
+# ____________________________________________________________
+
+try:
+    int_or_long = (int, long)
+    import cStringIO
+except NameError:
+    int_or_long = int      # Python 3
+    import io as cStringIO
+
+def _flatten(x, f):
+    if isinstance(x, str):
+        f.write('%ds%s' % (len(x), x))
+    elif isinstance(x, dict):
+        keys = sorted(x.keys())
+        f.write('%dd' % len(keys))
+        for key in keys:
+            _flatten(key, f)
+            _flatten(x[key], f)
+    elif isinstance(x, (list, tuple)):
+        f.write('%dl' % len(x))
+        for value in x:
+            _flatten(value, f)
+    elif isinstance(x, int_or_long):
+        f.write('%di' % (x,))
+    else:
+        raise TypeError(
+            "the keywords to verify() contains unsupported object %r" % (x,))
+
+def flatten(x):
+    f = cStringIO.StringIO()
+    _flatten(x, f)
+    return f.getvalue()

.venv/lib/python3.12/site-packages/cffi/lock.py

@@ -0,0 +1,30 @@
+import sys
+
+if sys.version_info < (3,):
+    try:
+        from thread import allocate_lock
+    except ImportError:
+        from dummy_thread import allocate_lock
+else:
+    try:
+        from _thread import allocate_lock
+    except ImportError:
+        from _dummy_thread import allocate_lock
+
+
+##import sys
+##l1 = allocate_lock
+
+##class allocate_lock(object):
+##    def __init__(self):
+##        self._real = l1()
+##    def __enter__(self):
+##        for i in range(4, 0, -1):
+##            print sys._getframe(i).f_code
+##        print
+##        return self._real.__enter__()
+##    def __exit__(self, *args):
+##        return self._real.__exit__(*args)
+##    def acquire(self, f):
+##        assert f is False
+##        return self._real.acquire(f)

.venv/lib/python3.12/site-packages/cffi/model.py

@@ -0,0 +1,618 @@
+import types
+import weakref
+
+from .lock import allocate_lock
+from .error import CDefError, VerificationError, VerificationMissing
+
+# type qualifiers
+Q_CONST    = 0x01
+Q_RESTRICT = 0x02
+Q_VOLATILE = 0x04
+
+def qualify(quals, replace_with):
+    if quals & Q_CONST:
+        replace_with = ' const ' + replace_with.lstrip()
+    if quals & Q_VOLATILE:
+        replace_with = ' volatile ' + replace_with.lstrip()
+    if quals & Q_RESTRICT:
+        # It seems that __restrict is supported by gcc and msvc.
+        # If you hit some different compiler, add a #define in
+        # _cffi_include.h for it (and in its copies, documented there)
+        replace_with = ' __restrict ' + replace_with.lstrip()
+    return replace_with
+
+
+class BaseTypeByIdentity(object):
+    is_array_type = False
+    is_raw_function = False
+
+    def get_c_name(self, replace_with='', context='a C file', quals=0):
+        result = self.c_name_with_marker
+        assert result.count('&') == 1
+        # some logic duplication with ffi.getctype()... :-(
+        replace_with = replace_with.strip()
+        if replace_with:
+            if replace_with.startswith('*') and '&[' in result:
+                replace_with = '(%s)' % replace_with
+            elif not replace_with[0] in '[(':
+                replace_with = ' ' + replace_with
+        replace_with = qualify(quals, replace_with)
+        result = result.replace('&', replace_with)
+        if '$' in result:
+            raise VerificationError(
+                "cannot generate '%s' in %s: unknown type name"
+                % (self._get_c_name(), context))
+        return result
+
+    def _get_c_name(self):
+        return self.c_name_with_marker.replace('&', '')
+
+    def has_c_name(self):
+        return '$' not in self._get_c_name()
+
+    def is_integer_type(self):
+        return False
+
+    def get_cached_btype(self, ffi, finishlist, can_delay=False):
+        try:
+            BType = ffi._cached_btypes[self]
+        except KeyError:
+            BType = self.build_backend_type(ffi, finishlist)
+            BType2 = ffi._cached_btypes.setdefault(self, BType)
+            assert BType2 is BType
+        return BType
+
+    def __repr__(self):
+        return '<%s>' % (self._get_c_name(),)
+
+    def _get_items(self):
+        return [(name, getattr(self, name)) for name in self._attrs_]
+
+
+class BaseType(BaseTypeByIdentity):
+
+    def __eq__(self, other):
+        return (self.__class__ == other.__class__ and
+                self._get_items() == other._get_items())
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __hash__(self):
+        return hash((self.__class__, tuple(self._get_items())))
+
+
+class VoidType(BaseType):
+    _attrs_ = ()
+
+    def __init__(self):
+        self.c_name_with_marker = 'void&'
+
+    def build_backend_type(self, ffi, finishlist):
+        return global_cache(self, ffi, 'new_void_type')
+
+void_type = VoidType()
+
+
+class BasePrimitiveType(BaseType):
+    def is_complex_type(self):
+        return False
+
+
+class PrimitiveType(BasePrimitiveType):
+    _attrs_ = ('name',)
+
+    ALL_PRIMITIVE_TYPES = {
+        'char':               'c',
+        'short':              'i',
+        'int':                'i',
+        'long':               'i',
+        'long long':          'i',
+        'signed char':        'i',
+        'unsigned char':      'i',
+        'unsigned short':     'i',
+        'unsigned int':       'i',
+        'unsigned long':      'i',
+        'unsigned long long': 'i',
+        'float':              'f',
+        'double':             'f',
+        'long double':        'f',
+        '_cffi_float_complex_t': 'j',
+        '_cffi_double_complex_t': 'j',
+        '_Bool':              'i',
+        # the following types are not primitive in the C sense
+        'wchar_t':            'c',
+        'char16_t':           'c',
+        'char32_t':           'c',
+        'int8_t':             'i',
+        'uint8_t':            'i',
+        'int16_t':            'i',
+        'uint16_t':           'i',
+        'int32_t':            'i',
+        'uint32_t':           'i',
+        'int64_t':            'i',
+        'uint64_t':           'i',
+        'int_least8_t':       'i',
+        'uint_least8_t':      'i',
+        'int_least16_t':      'i',
+        'uint_least16_t':     'i',
+        'int_least32_t':      'i',
+        'uint_least32_t':     'i',
+        'int_least64_t':      'i',
+        'uint_least64_t':     'i',
+        'int_fast8_t':        'i',
+        'uint_fast8_t':       'i',
+        'int_fast16_t':       'i',
+        'uint_fast16_t':      'i',
+        'int_fast32_t':       'i',
+        'uint_fast32_t':      'i',
+        'int_fast64_t':       'i',
+        'uint_fast64_t':      'i',
+        'intptr_t':           'i',
+        'uintptr_t':          'i',
+        'intmax_t':           'i',
+        'uintmax_t':          'i',
+        'ptrdiff_t':          'i',
+        'size_t':             'i',
+        'ssize_t':            'i',
+        }
+
+    def __init__(self, name):
+        assert name in self.ALL_PRIMITIVE_TYPES
+        self.name = name
+        self.c_name_with_marker = name + '&'
+
+    def is_char_type(self):
+        return self.ALL_PRIMITIVE_TYPES[self.name] == 'c'
+    def is_integer_type(self):
+        return self.ALL_PRIMITIVE_TYPES[self.name] == 'i'
+    def is_float_type(self):
+        return self.ALL_PRIMITIVE_TYPES[self.name] == 'f'
+    def is_complex_type(self):
+        return self.ALL_PRIMITIVE_TYPES[self.name] == 'j'
+
+    def build_backend_type(self, ffi, finishlist):
+        return global_cache(self, ffi, 'new_primitive_type', self.name)
+
+
+class UnknownIntegerType(BasePrimitiveType):
+    _attrs_ = ('name',)
+
+    def __init__(self, name):
+        self.name = name
+        self.c_name_with_marker = name + '&'
+
+    def is_integer_type(self):
+        return True
+
+    def build_backend_type(self, ffi, finishlist):
+        raise NotImplementedError("integer type '%s' can only be used after "
+                                  "compilation" % self.name)
+
+class UnknownFloatType(BasePrimitiveType):
+    _attrs_ = ('name', )
+
+    def __init__(self, name):
+        self.name = name
+        self.c_name_with_marker = name + '&'
+
+    def build_backend_type(self, ffi, finishlist):
+        raise NotImplementedError("float type '%s' can only be used after "
+                                  "compilation" % self.name)
+
+
+class BaseFunctionType(BaseType):
+    _attrs_ = ('args', 'result', 'ellipsis', 'abi')
+
+    def __init__(self, args, result, ellipsis, abi=None):
+        self.args = args
+        self.result = result
+        self.ellipsis = ellipsis
+        self.abi = abi
+        #
+        reprargs = [arg._get_c_name() for arg in self.args]
+        if self.ellipsis:
+            reprargs.append('...')
+        reprargs = reprargs or ['void']
+        replace_with = self._base_pattern % (', '.join(reprargs),)
+        if abi is not None:
+            replace_with = replace_with[:1] + abi + ' ' + replace_with[1:]
+        self.c_name_with_marker = (
+            self.result.c_name_with_marker.replace('&', replace_with))
+
+
+class RawFunctionType(BaseFunctionType):
+    # Corresponds to a C type like 'int(int)', which is the C type of
+    # a function, but not a pointer-to-function.  The backend has no
+    # notion of such a type; it's used temporarily by parsing.
+    _base_pattern = '(&)(%s)'
+    is_raw_function = True
+
+    def build_backend_type(self, ffi, finishlist):
+        raise CDefError("cannot render the type %r: it is a function "
+                        "type, not a pointer-to-function type" % (self,))
+
+    def as_function_pointer(self):
+        return FunctionPtrType(self.args, self.result, self.ellipsis, self.abi)
+
+
+class FunctionPtrType(BaseFunctionType):
+    _base_pattern = '(*&)(%s)'
+
+    def build_backend_type(self, ffi, finishlist):
+        result = self.result.get_cached_btype(ffi, finishlist)
+        args = []
+        for tp in self.args:
+            args.append(tp.get_cached_btype(ffi, finishlist))
+        abi_args = ()
+        if self.abi == "__stdcall":
+            if not self.ellipsis:    # __stdcall ignored for variadic funcs
+                try:
+                    abi_args = (ffi._backend.FFI_STDCALL,)
+                except AttributeError:
+                    pass
+        return global_cache(self, ffi, 'new_function_type',
+                            tuple(args), result, self.ellipsis, *abi_args)
+
+    def as_raw_function(self):
+        return RawFunctionType(self.args, self.result, self.ellipsis, self.abi)
+
+
+class PointerType(BaseType):
+    _attrs_ = ('totype', 'quals')
+
+    def __init__(self, totype, quals=0):
+        self.totype = totype
+        self.quals = quals
+        extra = " *&"
+        if totype.is_array_type:
+            extra = "(%s)" % (extra.lstrip(),)
+        extra = qualify(quals, extra)
+        self.c_name_with_marker = totype.c_name_with_marker.replace('&', extra)
+
+    def build_backend_type(self, ffi, finishlist):
+        BItem = self.totype.get_cached_btype(ffi, finishlist, can_delay=True)
+        return global_cache(self, ffi, 'new_pointer_type', BItem)
+
+voidp_type = PointerType(void_type)
+
+def ConstPointerType(totype):
+    return PointerType(totype, Q_CONST)
+
+const_voidp_type = ConstPointerType(void_type)
+
+
+class NamedPointerType(PointerType):
+    _attrs_ = ('totype', 'name')
+
+    def __init__(self, totype, name, quals=0):
+        PointerType.__init__(self, totype, quals)
+        self.name = name
+        self.c_name_with_marker = name + '&'
+
+
+class ArrayType(BaseType):
+    _attrs_ = ('item', 'length')
+    is_array_type = True
+
+    def __init__(self, item, length):
+        self.item = item
+        self.length = length
+        #
+        if length is None:
+            brackets = '&[]'
+        elif length == '...':
+            brackets = '&[/*...*/]'
+        else:
+            brackets = '&[%s]' % length
+        self.c_name_with_marker = (
+            self.item.c_name_with_marker.replace('&', brackets))
+
+    def length_is_unknown(self):
+        return isinstance(self.length, str)
+
+    def resolve_length(self, newlength):
+        return ArrayType(self.item, newlength)
+
+    def build_backend_type(self, ffi, finishlist):
+        if self.length_is_unknown():
+            raise CDefError("cannot render the type %r: unknown length" %
+                            (self,))
+        self.item.get_cached_btype(ffi, finishlist)   # force the item BType
+        BPtrItem = PointerType(self.item).get_cached_btype(ffi, finishlist)
+        return global_cache(self, ffi, 'new_array_type', BPtrItem, self.length)
+
+char_array_type = ArrayType(PrimitiveType('char'), None)
+
+
+class StructOrUnionOrEnum(BaseTypeByIdentity):
+    _attrs_ = ('name',)
+    forcename = None
+
+    def build_c_name_with_marker(self):
+        name = self.forcename or '%s %s' % (self.kind, self.name)
+        self.c_name_with_marker = name + '&'
+
+    def force_the_name(self, forcename):
+        self.forcename = forcename
+        self.build_c_name_with_marker()
+
+    def get_official_name(self):
+        assert self.c_name_with_marker.endswith('&')
+        return self.c_name_with_marker[:-1]
+
+
+class StructOrUnion(StructOrUnionOrEnum):
+    fixedlayout = None
+    completed = 0
+    partial = False
+    packed = 0
+
+    def __init__(self, name, fldnames, fldtypes, fldbitsize, fldquals=None):
+        self.name = name
+        self.fldnames = fldnames
+        self.fldtypes = fldtypes
+        self.fldbitsize = fldbitsize
+        self.fldquals = fldquals
+        self.build_c_name_with_marker()
+
+    def anonymous_struct_fields(self):
+        if self.fldtypes is not None:
+            for name, type in zip(self.fldnames, self.fldtypes):
+                if name == '' and isinstance(type, StructOrUnion):
+                    yield type
+
+    def enumfields(self, expand_anonymous_struct_union=True):
+        fldquals = self.fldquals
+        if fldquals is None:
+            fldquals = (0,) * len(self.fldnames)
+        for name, type, bitsize, quals in zip(self.fldnames, self.fldtypes,
+                                              self.fldbitsize, fldquals):
+            if (name == '' and isinstance(type, StructOrUnion)
+                    and expand_anonymous_struct_union):
+                # nested anonymous struct/union
+                for result in type.enumfields():
+                    yield result
+            else:
+                yield (name, type, bitsize, quals)
+
+    def force_flatten(self):
+        # force the struct or union to have a declaration that lists
+        # directly all fields returned by enumfields(), flattening
+        # nested anonymous structs/unions.
+        names = []
+        types = []
+        bitsizes = []
+        fldquals = []
+        for name, type, bitsize, quals in self.enumfields():
+            names.append(name)
+            types.append(type)
+            bitsizes.append(bitsize)
+            fldquals.append(quals)
+        self.fldnames = tuple(names)
+        self.fldtypes = tuple(types)
+        self.fldbitsize = tuple(bitsizes)
+        self.fldquals = tuple(fldquals)
+
+    def get_cached_btype(self, ffi, finishlist, can_delay=False):
+        BType = StructOrUnionOrEnum.get_cached_btype(self, ffi, finishlist,
+                                                     can_delay)
+        if not can_delay:
+            self.finish_backend_type(ffi, finishlist)
+        return BType
+
+    def finish_backend_type(self, ffi, finishlist):
+        if self.completed:
+            if self.completed != 2:
+                raise NotImplementedError("recursive structure declaration "
+                                          "for '%s'" % (self.name,))
+            return
+        BType = ffi._cached_btypes[self]
+        #
+        self.completed = 1
+        #
+        if self.fldtypes is None:
+            pass    # not completing it: it's an opaque struct
+            #
+        elif self.fixedlayout is None:
+            fldtypes = [tp.get_cached_btype(ffi, finishlist)
+                        for tp in self.fldtypes]
+            lst = list(zip(self.fldnames, fldtypes, self.fldbitsize))
+            extra_flags = ()
+            if self.packed:
+                if self.packed == 1:
+                    extra_flags = (8,)    # SF_PACKED
+                else:
+                    extra_flags = (0, self.packed)
+            ffi._backend.complete_struct_or_union(BType, lst, self,
+                                                  -1, -1, *extra_flags)
+            #
+        else:
+            fldtypes = []
+            fieldofs, fieldsize, totalsize, totalalignment = self.fixedlayout
+            for i in range(len(self.fldnames)):
+                fsize = fieldsize[i]
+                ftype = self.fldtypes[i]
+                #
+                if isinstance(ftype, ArrayType) and ftype.length_is_unknown():
+                    # fix the length to match the total size
+                    BItemType = ftype.item.get_cached_btype(ffi, finishlist)
+                    nlen, nrest = divmod(fsize, ffi.sizeof(BItemType))
+                    if nrest != 0:
+                        self._verification_error(
+                            "field '%s.%s' has a bogus size?" % (
+                            self.name, self.fldnames[i] or '{}'))
+                    ftype = ftype.resolve_length(nlen)
+                    self.fldtypes = (self.fldtypes[:i] + (ftype,) +
+                                     self.fldtypes[i+1:])
+                #
+                BFieldType = ftype.get_cached_btype(ffi, finishlist)
+                if isinstance(ftype, ArrayType) and ftype.length is None:
+                    assert fsize == 0
+                else:
+                    bitemsize = ffi.sizeof(BFieldType)
+                    if bitemsize != fsize:
+                        self._verification_error(
+                            "field '%s.%s' is declared as %d bytes, but is "
+                            "really %d bytes" % (self.name,
+                                                 self.fldnames[i] or '{}',
+                                                 bitemsize, fsize))
+                fldtypes.append(BFieldType)
+            #
+            lst = list(zip(self.fldnames, fldtypes, self.fldbitsize, fieldofs))
+            ffi._backend.complete_struct_or_union(BType, lst, self,
+                                                  totalsize, totalalignment)
+        self.completed = 2
+
+    def _verification_error(self, msg):
+        raise VerificationError(msg)
+
+    def check_not_partial(self):
+        if self.partial and self.fixedlayout is None:
+            raise VerificationMissing(self._get_c_name())
+
+    def build_backend_type(self, ffi, finishlist):
+        self.check_not_partial()
+        finishlist.append(self)
+        #
+        return global_cache(self, ffi, 'new_%s_type' % self.kind,
+                            self.get_official_name(), key=self)
+
+
+class StructType(StructOrUnion):
+    kind = 'struct'
+
+
+class UnionType(StructOrUnion):
+    kind = 'union'
+
+
+class EnumType(StructOrUnionOrEnum):
+    kind = 'enum'
+    partial = False
+    partial_resolved = False
+
+    def __init__(self, name, enumerators, enumvalues, baseinttype=None):
+        self.name = name
+        self.enumerators = enumerators
+        self.enumvalues = enumvalues
+        self.baseinttype = baseinttype
+        self.build_c_name_with_marker()
+
+    def force_the_name(self, forcename):
+        StructOrUnionOrEnum.force_the_name(self, forcename)
+        if self.forcename is None:
+            name = self.get_official_name()
+            self.forcename = '$' + name.replace(' ', '_')
+
+    def check_not_partial(self):
+        if self.partial and not self.partial_resolved:
+            raise VerificationMissing(self._get_c_name())
+
+    def build_backend_type(self, ffi, finishlist):
+        self.check_not_partial()
+        base_btype = self.build_baseinttype(ffi, finishlist)
+        return global_cache(self, ffi, 'new_enum_type',
+                            self.get_official_name(),
+                            self.enumerators, self.enumvalues,
+                            base_btype, key=self)
+
+    def build_baseinttype(self, ffi, finishlist):
+        if self.baseinttype is not None:
+            return self.baseinttype.get_cached_btype(ffi, finishlist)
+        #
+        if self.enumvalues:
+            smallest_value = min(self.enumvalues)
+            largest_value = max(self.enumvalues)
+        else:
+            import warnings
+            try:
+                # XXX!  The goal is to ensure that the warnings.warn()
+                # will not suppress the warning.  We want to get it
+                # several times if we reach this point several times.
+                __warningregistry__.clear()
+            except NameError:
+                pass
+            warnings.warn("%r has no values explicitly defined; "
+                          "guessing that it is equivalent to 'unsigned int'"
+                          % self._get_c_name())
+            smallest_value = largest_value = 0
+        if smallest_value < 0:   # needs a signed type
+            sign = 1
+            candidate1 = PrimitiveType("int")
+            candidate2 = PrimitiveType("long")
+        else:
+            sign = 0
+            candidate1 = PrimitiveType("unsigned int")
+            candidate2 = PrimitiveType("unsigned long")
+        btype1 = candidate1.get_cached_btype(ffi, finishlist)
+        btype2 = candidate2.get_cached_btype(ffi, finishlist)
+        size1 = ffi.sizeof(btype1)
+        size2 = ffi.sizeof(btype2)
+        if (smallest_value >= ((-1) << (8*size1-1)) and
+            largest_value < (1 << (8*size1-sign))):
+            return btype1
+        if (smallest_value >= ((-1) << (8*size2-1)) and
+            largest_value < (1 << (8*size2-sign))):
+            return btype2
+        raise CDefError("%s values don't all fit into either 'long' "
+                        "or 'unsigned long'" % self._get_c_name())
+
+def unknown_type(name, structname=None):
+    if structname is None:
+        structname = '$%s' % name
+    tp = StructType(structname, None, None, None)
+    tp.force_the_name(name)
+    tp.origin = "unknown_type"
+    return tp
+
+def unknown_ptr_type(name, structname=None):
+    if structname is None:
+        structname = '$$%s' % name
+    tp = StructType(structname, None, None, None)
+    return NamedPointerType(tp, name)
+
+
+global_lock = allocate_lock()
+_typecache_cffi_backend = weakref.WeakValueDictionary()
+
+def get_typecache(backend):
+    # returns _typecache_cffi_backend if backend is the _cffi_backend
+    # module, or type(backend).__typecache if backend is an instance of
+    # CTypesBackend (or some FakeBackend class during tests)
+    if isinstance(backend, types.ModuleType):
+        return _typecache_cffi_backend
+    with global_lock:
+        if not hasattr(type(backend), '__typecache'):
+            type(backend).__typecache = weakref.WeakValueDictionary()
+        return type(backend).__typecache
+
+def global_cache(srctype, ffi, funcname, *args, **kwds):
+    key = kwds.pop('key', (funcname, args))
+    assert not kwds
+    try:
+        return ffi._typecache[key]
+    except KeyError:
+        pass
+    try:
+        res = getattr(ffi._backend, funcname)(*args)
+    except NotImplementedError as e:
+        raise NotImplementedError("%s: %r: %s" % (funcname, srctype, e))
+    # note that setdefault() on WeakValueDictionary is not atomic
+    # and contains a rare bug (http://bugs.python.org/issue19542);
+    # we have to use a lock and do it ourselves
+    cache = ffi._typecache
+    with global_lock:
+        res1 = cache.get(key)
+        if res1 is None:
+            cache[key] = res
+            return res
+        else:
+            return res1
+
+def pointer_cache(ffi, BType):
+    return global_cache('?', ffi, 'new_pointer_type', BType)
+
+def attach_exception_info(e, name):
+    if e.args and type(e.args[0]) is str:
+        e.args = ('%s: %s' % (name, e.args[0]),) + e.args[1:]

.venv/lib/python3.12/site-packages/cffi/parse_c_type.h

@@ -0,0 +1,181 @@
+
+/* This part is from file 'cffi/parse_c_type.h'.  It is copied at the
+   beginning of C sources generated by CFFI's ffi.set_source(). */
+
+typedef void *_cffi_opcode_t;
+
+#define _CFFI_OP(opcode, arg)   (_cffi_opcode_t)(opcode | (((uintptr_t)(arg)) << 8))
+#define _CFFI_GETOP(cffi_opcode)    ((unsigned char)(uintptr_t)cffi_opcode)
+#define _CFFI_GETARG(cffi_opcode)   (((intptr_t)cffi_opcode) >> 8)
+
+#define _CFFI_OP_PRIMITIVE       1
+#define _CFFI_OP_POINTER         3
+#define _CFFI_OP_ARRAY           5
+#define _CFFI_OP_OPEN_ARRAY      7
+#define _CFFI_OP_STRUCT_UNION    9
+#define _CFFI_OP_ENUM           11
+#define _CFFI_OP_FUNCTION       13
+#define _CFFI_OP_FUNCTION_END   15
+#define _CFFI_OP_NOOP           17
+#define _CFFI_OP_BITFIELD       19
+#define _CFFI_OP_TYPENAME       21
+#define _CFFI_OP_CPYTHON_BLTN_V 23   // varargs
+#define _CFFI_OP_CPYTHON_BLTN_N 25   // noargs
+#define _CFFI_OP_CPYTHON_BLTN_O 27   // O  (i.e. a single arg)
+#define _CFFI_OP_CONSTANT       29
+#define _CFFI_OP_CONSTANT_INT   31
+#define _CFFI_OP_GLOBAL_VAR     33
+#define _CFFI_OP_DLOPEN_FUNC    35
+#define _CFFI_OP_DLOPEN_CONST   37
+#define _CFFI_OP_GLOBAL_VAR_F   39
+#define _CFFI_OP_EXTERN_PYTHON  41
+
+#define _CFFI_PRIM_VOID          0
+#define _CFFI_PRIM_BOOL          1
+#define _CFFI_PRIM_CHAR          2
+#define _CFFI_PRIM_SCHAR         3
+#define _CFFI_PRIM_UCHAR         4
+#define _CFFI_PRIM_SHORT         5
+#define _CFFI_PRIM_USHORT        6
+#define _CFFI_PRIM_INT           7
+#define _CFFI_PRIM_UINT          8
+#define _CFFI_PRIM_LONG          9
+#define _CFFI_PRIM_ULONG        10
+#define _CFFI_PRIM_LONGLONG     11
+#define _CFFI_PRIM_ULONGLONG    12
+#define _CFFI_PRIM_FLOAT        13
+#define _CFFI_PRIM_DOUBLE       14
+#define _CFFI_PRIM_LONGDOUBLE   15
+
+#define _CFFI_PRIM_WCHAR        16
+#define _CFFI_PRIM_INT8         17
+#define _CFFI_PRIM_UINT8        18
+#define _CFFI_PRIM_INT16        19
+#define _CFFI_PRIM_UINT16       20
+#define _CFFI_PRIM_INT32        21
+#define _CFFI_PRIM_UINT32       22
+#define _CFFI_PRIM_INT64        23
+#define _CFFI_PRIM_UINT64       24
+#define _CFFI_PRIM_INTPTR       25
+#define _CFFI_PRIM_UINTPTR      26
+#define _CFFI_PRIM_PTRDIFF      27
+#define _CFFI_PRIM_SIZE         28
+#define _CFFI_PRIM_SSIZE        29
+#define _CFFI_PRIM_INT_LEAST8   30
+#define _CFFI_PRIM_UINT_LEAST8  31
+#define _CFFI_PRIM_INT_LEAST16  32
+#define _CFFI_PRIM_UINT_LEAST16 33
+#define _CFFI_PRIM_INT_LEAST32  34
+#define _CFFI_PRIM_UINT_LEAST32 35
+#define _CFFI_PRIM_INT_LEAST64  36
+#define _CFFI_PRIM_UINT_LEAST64 37
+#define _CFFI_PRIM_INT_FAST8    38
+#define _CFFI_PRIM_UINT_FAST8   39
+#define _CFFI_PRIM_INT_FAST16   40
+#define _CFFI_PRIM_UINT_FAST16  41
+#define _CFFI_PRIM_INT_FAST32   42
+#define _CFFI_PRIM_UINT_FAST32  43
+#define _CFFI_PRIM_INT_FAST64   44
+#define _CFFI_PRIM_UINT_FAST64  45
+#define _CFFI_PRIM_INTMAX       46
+#define _CFFI_PRIM_UINTMAX      47
+#define _CFFI_PRIM_FLOATCOMPLEX 48
+#define _CFFI_PRIM_DOUBLECOMPLEX 49
+#define _CFFI_PRIM_CHAR16       50
+#define _CFFI_PRIM_CHAR32       51
+
+#define _CFFI__NUM_PRIM         52
+#define _CFFI__UNKNOWN_PRIM           (-1)
+#define _CFFI__UNKNOWN_FLOAT_PRIM     (-2)
+#define _CFFI__UNKNOWN_LONG_DOUBLE    (-3)
+
+#define _CFFI__IO_FILE_STRUCT         (-1)
+
+
+struct _cffi_global_s {
+    const char *name;
+    void *address;
+    _cffi_opcode_t type_op;
+    void *size_or_direct_fn;  // OP_GLOBAL_VAR: size, or 0 if unknown
+                              // OP_CPYTHON_BLTN_*: addr of direct function
+};
+
+struct _cffi_getconst_s {
+    unsigned long long value;
+    const struct _cffi_type_context_s *ctx;
+    int gindex;
+};
+
+struct _cffi_struct_union_s {
+    const char *name;
+    int type_index;          // -> _cffi_types, on a OP_STRUCT_UNION
+    int flags;               // _CFFI_F_* flags below
+    size_t size;
+    int alignment;
+    int first_field_index;   // -> _cffi_fields array
+    int num_fields;
+};
+#define _CFFI_F_UNION         0x01   // is a union, not a struct
+#define _CFFI_F_CHECK_FIELDS  0x02   // complain if fields are not in the
+                                     // "standard layout" or if some are missing
+#define _CFFI_F_PACKED        0x04   // for CHECK_FIELDS, assume a packed struct
+#define _CFFI_F_EXTERNAL      0x08   // in some other ffi.include()
+#define _CFFI_F_OPAQUE        0x10   // opaque
+
+struct _cffi_field_s {
+    const char *name;
+    size_t field_offset;
+    size_t field_size;
+    _cffi_opcode_t field_type_op;
+};
+
+struct _cffi_enum_s {
+    const char *name;
+    int type_index;          // -> _cffi_types, on a OP_ENUM
+    int type_prim;           // _CFFI_PRIM_xxx
+    const char *enumerators; // comma-delimited string
+};
+
+struct _cffi_typename_s {
+    const char *name;
+    int type_index;   /* if opaque, points to a possibly artificial
+                         OP_STRUCT which is itself opaque */
+};
+
+struct _cffi_type_context_s {
+    _cffi_opcode_t *types;
+    const struct _cffi_global_s *globals;
+    const struct _cffi_field_s *fields;
+    const struct _cffi_struct_union_s *struct_unions;
+    const struct _cffi_enum_s *enums;
+    const struct _cffi_typename_s *typenames;
+    int num_globals;
+    int num_struct_unions;
+    int num_enums;
+    int num_typenames;
+    const char *const *includes;
+    int num_types;
+    int flags;      /* future extension */
+};
+
+struct _cffi_parse_info_s {
+    const struct _cffi_type_context_s *ctx;
+    _cffi_opcode_t *output;
+    unsigned int output_size;
+    size_t error_location;
+    const char *error_message;
+};
+
+struct _cffi_externpy_s {
+    const char *name;
+    size_t size_of_result;
+    void *reserved1, *reserved2;
+};
+
+#ifdef _CFFI_INTERNAL
+static int parse_c_type(struct _cffi_parse_info_s *info, const char *input);
+static int search_in_globals(const struct _cffi_type_context_s *ctx,
+                             const char *search, size_t search_len);
+static int search_in_struct_unions(const struct _cffi_type_context_s *ctx,
+                                   const char *search, size_t search_len);
+#endif

.venv/lib/python3.12/site-packages/cffi/pkgconfig.py

@@ -0,0 +1,121 @@
+# pkg-config, https://www.freedesktop.org/wiki/Software/pkg-config/ integration for cffi
+import sys, os, subprocess
+
+from .error import PkgConfigError
+
+
+def merge_flags(cfg1, cfg2):
+    """Merge values from cffi config flags cfg2 to cf1
+
+    Example:
+        merge_flags({"libraries": ["one"]}, {"libraries": ["two"]})
+        {"libraries": ["one", "two"]}
+    """
+    for key, value in cfg2.items():
+        if key not in cfg1:
+            cfg1[key] = value
+        else:
+            if not isinstance(cfg1[key], list):
+                raise TypeError("cfg1[%r] should be a list of strings" % (key,))
+            if not isinstance(value, list):
+                raise TypeError("cfg2[%r] should be a list of strings" % (key,))
+            cfg1[key].extend(value)
+    return cfg1
+
+
+def call(libname, flag, encoding=sys.getfilesystemencoding()):
+    """Calls pkg-config and returns the output if found
+    """
+    a = ["pkg-config", "--print-errors"]
+    a.append(flag)
+    a.append(libname)
+    try:
+        pc = subprocess.Popen(a, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    except EnvironmentError as e:
+        raise PkgConfigError("cannot run pkg-config: %s" % (str(e).strip(),))
+
+    bout, berr = pc.communicate()
+    if pc.returncode != 0:
+        try:
+            berr = berr.decode(encoding)
+        except Exception:
+            pass
+        raise PkgConfigError(berr.strip())
+
+    if sys.version_info >= (3,) and not isinstance(bout, str):   # Python 3.x
+        try:
+            bout = bout.decode(encoding)
+        except UnicodeDecodeError:
+            raise PkgConfigError("pkg-config %s %s returned bytes that cannot "
+                                 "be decoded with encoding %r:\n%r" %
+                                 (flag, libname, encoding, bout))
+
+    if os.altsep != '\\' and '\\' in bout:
+        raise PkgConfigError("pkg-config %s %s returned an unsupported "
+                             "backslash-escaped output:\n%r" %
+                             (flag, libname, bout))
+    return bout
+
+
+def flags_from_pkgconfig(libs):
+    r"""Return compiler line flags for FFI.set_source based on pkg-config output
+
+    Usage
+        ...
+        ffibuilder.set_source("_foo", pkgconfig = ["libfoo", "libbar >= 1.8.3"])
+
+    If pkg-config is installed on build machine, then arguments include_dirs,
+    library_dirs, libraries, define_macros, extra_compile_args and
+    extra_link_args are extended with an output of pkg-config for libfoo and
+    libbar.
+
+    Raises PkgConfigError in case the pkg-config call fails.
+    """
+
+    def get_include_dirs(string):
+        return [x[2:] for x in string.split() if x.startswith("-I")]
+
+    def get_library_dirs(string):
+        return [x[2:] for x in string.split() if x.startswith("-L")]
+
+    def get_libraries(string):
+        return [x[2:] for x in string.split() if x.startswith("-l")]
+
+    # convert -Dfoo=bar to list of tuples [("foo", "bar")] expected by distutils
+    def get_macros(string):
+        def _macro(x):
+            x = x[2:]    # drop "-D"
+            if '=' in x:
+                return tuple(x.split("=", 1))  # "-Dfoo=bar" => ("foo", "bar")
+            else:
+                return (x, None)               # "-Dfoo" => ("foo", None)
+        return [_macro(x) for x in string.split() if x.startswith("-D")]
+
+    def get_other_cflags(string):
+        return [x for x in string.split() if not x.startswith("-I") and
+                                             not x.startswith("-D")]
+
+    def get_other_libs(string):
+        return [x for x in string.split() if not x.startswith("-L") and
+                                             not x.startswith("-l")]
+
+    # return kwargs for given libname
+    def kwargs(libname):
+        fse = sys.getfilesystemencoding()
+        all_cflags = call(libname, "--cflags")
+        all_libs = call(libname, "--libs")
+        return {
+            "include_dirs": get_include_dirs(all_cflags),
+            "library_dirs": get_library_dirs(all_libs),
+            "libraries": get_libraries(all_libs),
+            "define_macros": get_macros(all_cflags),
+            "extra_compile_args": get_other_cflags(all_cflags),
+            "extra_link_args": get_other_libs(all_libs),
+            }
+
+    # merge all arguments together
+    ret = {}
+    for libname in libs:
+        lib_flags = kwargs(libname)
+        merge_flags(ret, lib_flags)
+    return ret

.venv/lib/python3.12/site-packages/cffi/setuptools_ext.py

@@ -0,0 +1,229 @@
+import os
+import sys
+import sysconfig
+
+try:
+    basestring
+except NameError:
+    # Python 3.x
+    basestring = str
+
+def error(msg):
+    from cffi._shimmed_dist_utils import DistutilsSetupError
+    raise DistutilsSetupError(msg)
+
+
+def execfile(filename, glob):
+    # We use execfile() (here rewritten for Python 3) instead of
+    # __import__() to load the build script.  The problem with
+    # a normal import is that in some packages, the intermediate
+    # __init__.py files may already try to import the file that
+    # we are generating.
+    with open(filename) as f:
+        src = f.read()
+    src += '\n'      # Python 2.6 compatibility
+    code = compile(src, filename, 'exec')
+    exec(code, glob, glob)
+
+
+def add_cffi_module(dist, mod_spec):
+    from cffi.api import FFI
+
+    if not isinstance(mod_spec, basestring):
+        error("argument to 'cffi_modules=...' must be a str or a list of str,"
+              " not %r" % (type(mod_spec).__name__,))
+    mod_spec = str(mod_spec)
+    try:
+        build_file_name, ffi_var_name = mod_spec.split(':')
+    except ValueError:
+        error("%r must be of the form 'path/build.py:ffi_variable'" %
+              (mod_spec,))
+    if not os.path.exists(build_file_name):
+        ext = ''
+        rewritten = build_file_name.replace('.', '/') + '.py'
+        if os.path.exists(rewritten):
+            ext = ' (rewrite cffi_modules to [%r])' % (
+                rewritten + ':' + ffi_var_name,)
+        error("%r does not name an existing file%s" % (build_file_name, ext))
+
+    mod_vars = {'__name__': '__cffi__', '__file__': build_file_name}
+    execfile(build_file_name, mod_vars)
+
+    try:
+        ffi = mod_vars[ffi_var_name]
+    except KeyError:
+        error("%r: object %r not found in module" % (mod_spec,
+                                                     ffi_var_name))
+    if not isinstance(ffi, FFI):
+        ffi = ffi()      # maybe it's a function instead of directly an ffi
+    if not isinstance(ffi, FFI):
+        error("%r is not an FFI instance (got %r)" % (mod_spec,
+                                                      type(ffi).__name__))
+    if not hasattr(ffi, '_assigned_source'):
+        error("%r: the set_source() method was not called" % (mod_spec,))
+    module_name, source, source_extension, kwds = ffi._assigned_source
+    if ffi._windows_unicode:
+        kwds = kwds.copy()
+        ffi._apply_windows_unicode(kwds)
+
+    if source is None:
+        _add_py_module(dist, ffi, module_name)
+    else:
+        _add_c_module(dist, ffi, module_name, source, source_extension, kwds)
+
+def _set_py_limited_api(Extension, kwds):
+    """
+    Add py_limited_api to kwds if setuptools >= 26 is in use.
+    Do not alter the setting if it already exists.
+    Setuptools takes care of ignoring the flag on Python 2 and PyPy.
+
+    CPython itself should ignore the flag in a debugging version
+    (by not listing .abi3.so in the extensions it supports), but
+    it doesn't so far, creating troubles.  That's why we check
+    for "not hasattr(sys, 'gettotalrefcount')" (the 2.7 compatible equivalent
+    of 'd' not in sys.abiflags). (http://bugs.python.org/issue28401)
+
+    On Windows, with CPython <= 3.4, it's better not to use py_limited_api
+    because virtualenv *still* doesn't copy PYTHON3.DLL on these versions.
+    Recently (2020) we started shipping only >= 3.5 wheels, though.  So
+    we'll give it another try and set py_limited_api on Windows >= 3.5.
+    """
+    from cffi._shimmed_dist_utils import log
+    from cffi import recompiler
+
+    if ('py_limited_api' not in kwds and not hasattr(sys, 'gettotalrefcount')
+            and recompiler.USE_LIMITED_API):
+        import setuptools
+        try:
+            setuptools_major_version = int(setuptools.__version__.partition('.')[0])
+            if setuptools_major_version >= 26:
+                kwds['py_limited_api'] = True
+        except ValueError:  # certain development versions of setuptools
+            # If we don't know the version number of setuptools, we
+            # try to set 'py_limited_api' anyway.  At worst, we get a
+            # warning.
+            kwds['py_limited_api'] = True
+
+    if sysconfig.get_config_var("Py_GIL_DISABLED"):
+        if kwds.get('py_limited_api'):
+            log.info("Ignoring py_limited_api=True for free-threaded build.")
+
+        kwds['py_limited_api'] = False
+
+    if kwds.get('py_limited_api') is False:
+        # avoid setting Py_LIMITED_API if py_limited_api=False
+        # which _cffi_include.h does unless _CFFI_NO_LIMITED_API is defined
+        kwds.setdefault("define_macros", []).append(("_CFFI_NO_LIMITED_API", None))
+    return kwds
+
+def _add_c_module(dist, ffi, module_name, source, source_extension, kwds):
+    # We are a setuptools extension. Need this build_ext for py_limited_api.
+    from setuptools.command.build_ext import build_ext
+    from cffi._shimmed_dist_utils import Extension, log, mkpath
+    from cffi import recompiler
+
+    allsources = ['$PLACEHOLDER']
+    allsources.extend(kwds.pop('sources', []))
+    kwds = _set_py_limited_api(Extension, kwds)
+    ext = Extension(name=module_name, sources=allsources, **kwds)
+
+    def make_mod(tmpdir, pre_run=None):
+        c_file = os.path.join(tmpdir, module_name + source_extension)
+        log.info("generating cffi module %r" % c_file)
+        mkpath(tmpdir)
+        # a setuptools-only, API-only hook: called with the "ext" and "ffi"
+        # arguments just before we turn the ffi into C code.  To use it,
+        # subclass the 'distutils.command.build_ext.build_ext' class and
+        # add a method 'def pre_run(self, ext, ffi)'.
+        if pre_run is not None:
+            pre_run(ext, ffi)
+        updated = recompiler.make_c_source(ffi, module_name, source, c_file)
+        if not updated:
+            log.info("already up-to-date")
+        return c_file
+
+    if dist.ext_modules is None:
+        dist.ext_modules = []
+    dist.ext_modules.append(ext)
+
+    base_class = dist.cmdclass.get('build_ext', build_ext)
+    class build_ext_make_mod(base_class):
+        def run(self):
+            if ext.sources[0] == '$PLACEHOLDER':
+                pre_run = getattr(self, 'pre_run', None)
+                ext.sources[0] = make_mod(self.build_temp, pre_run)
+            base_class.run(self)
+    dist.cmdclass['build_ext'] = build_ext_make_mod
+    # NB. multiple runs here will create multiple 'build_ext_make_mod'
+    # classes.  Even in this case the 'build_ext' command should be
+    # run once; but just in case, the logic above does nothing if
+    # called again.
+
+
+def _add_py_module(dist, ffi, module_name):
+    from setuptools.command.build_py import build_py
+    from setuptools.command.build_ext import build_ext
+    from cffi._shimmed_dist_utils import log, mkpath
+    from cffi import recompiler
+
+    def generate_mod(py_file):
+        log.info("generating cffi module %r" % py_file)
+        mkpath(os.path.dirname(py_file))
+        updated = recompiler.make_py_source(ffi, module_name, py_file)
+        if not updated:
+            log.info("already up-to-date")
+
+    base_class = dist.cmdclass.get('build_py', build_py)
+    class build_py_make_mod(base_class):
+        def run(self):
+            base_class.run(self)
+            module_path = module_name.split('.')
+            module_path[-1] += '.py'
+            generate_mod(os.path.join(self.build_lib, *module_path))
+        def get_source_files(self):
+            # This is called from 'setup.py sdist' only.  Exclude
+            # the generate .py module in this case.
+            saved_py_modules = self.py_modules
+            try:
+                if saved_py_modules:
+                    self.py_modules = [m for m in saved_py_modules
+                                         if m != module_name]
+                return base_class.get_source_files(self)
+            finally:
+                self.py_modules = saved_py_modules
+    dist.cmdclass['build_py'] = build_py_make_mod
+
+    # distutils and setuptools have no notion I could find of a
+    # generated python module.  If we don't add module_name to
+    # dist.py_modules, then things mostly work but there are some
+    # combination of options (--root and --record) that will miss
+    # the module.  So we add it here, which gives a few apparently
+    # harmless warnings about not finding the file outside the
+    # build directory.
+    # Then we need to hack more in get_source_files(); see above.
+    if dist.py_modules is None:
+        dist.py_modules = []
+    dist.py_modules.append(module_name)
+
+    # the following is only for "build_ext -i"
+    base_class_2 = dist.cmdclass.get('build_ext', build_ext)
+    class build_ext_make_mod(base_class_2):
+        def run(self):
+            base_class_2.run(self)
+            if self.inplace:
+                # from get_ext_fullpath() in distutils/command/build_ext.py
+                module_path = module_name.split('.')
+                package = '.'.join(module_path[:-1])
+                build_py = self.get_finalized_command('build_py')
+                package_dir = build_py.get_package_dir(package)
+                file_name = module_path[-1] + '.py'
+                generate_mod(os.path.join(package_dir, file_name))
+    dist.cmdclass['build_ext'] = build_ext_make_mod
+
+def cffi_modules(dist, attr, value):
+    assert attr == 'cffi_modules'
+    if isinstance(value, basestring):
+        value = [value]
+
+    for cffi_module in value:
+        add_cffi_module(dist, cffi_module)

.venv/lib/python3.12/site-packages/cffi/vengine_gen.py

@@ -0,0 +1,679 @@
+#
+# DEPRECATED: implementation for ffi.verify()
+#
+import sys, os
+import types
+
+from . import model
+from .error import VerificationError
+
+
+class VGenericEngine(object):
+    _class_key = 'g'
+    _gen_python_module = False
+
+    def __init__(self, verifier):
+        self.verifier = verifier
+        self.ffi = verifier.ffi
+        self.export_symbols = []
+        self._struct_pending_verification = {}
+
+    def patch_extension_kwds(self, kwds):
+        # add 'export_symbols' to the dictionary.  Note that we add the
+        # list before filling it.  When we fill it, it will thus also show
+        # up in kwds['export_symbols'].
+        kwds.setdefault('export_symbols', self.export_symbols)
+
+    def find_module(self, module_name, path, so_suffixes):
+        for so_suffix in so_suffixes:
+            basename = module_name + so_suffix
+            if path is None:
+                path = sys.path
+            for dirname in path:
+                filename = os.path.join(dirname, basename)
+                if os.path.isfile(filename):
+                    return filename
+
+    def collect_types(self):
+        pass      # not needed in the generic engine
+
+    def _prnt(self, what=''):
+        self._f.write(what + '\n')
+
+    def write_source_to_f(self):
+        prnt = self._prnt
+        # first paste some standard set of lines that are mostly '#include'
+        prnt(cffimod_header)
+        # then paste the C source given by the user, verbatim.
+        prnt(self.verifier.preamble)
+        #
+        # call generate_gen_xxx_decl(), for every xxx found from
+        # ffi._parser._declarations.  This generates all the functions.
+        self._generate('decl')
+        #
+        # on Windows, distutils insists on putting init_cffi_xyz in
+        # 'export_symbols', so instead of fighting it, just give up and
+        # give it one
+        if sys.platform == 'win32':
+            if sys.version_info >= (3,):
+                prefix = 'PyInit_'
+            else:
+                prefix = 'init'
+            modname = self.verifier.get_module_name()
+            prnt("void %s%s(void) { }\n" % (prefix, modname))
+
+    def load_library(self, flags=0):
+        # import it with the CFFI backend
+        backend = self.ffi._backend
+        # needs to make a path that contains '/', on Posix
+        filename = os.path.join(os.curdir, self.verifier.modulefilename)
+        module = backend.load_library(filename, flags)
+        #
+        # call loading_gen_struct() to get the struct layout inferred by
+        # the C compiler
+        self._load(module, 'loading')
+
+        # build the FFILibrary class and instance, this is a module subclass
+        # because modules are expected to have usually-constant-attributes and
+        # in PyPy this means the JIT is able to treat attributes as constant,
+        # which we want.
+        class FFILibrary(types.ModuleType):
+            _cffi_generic_module = module
+            _cffi_ffi = self.ffi
+            _cffi_dir = []
+            def __dir__(self):
+                return FFILibrary._cffi_dir
+        library = FFILibrary("")
+        #
+        # finally, call the loaded_gen_xxx() functions.  This will set
+        # up the 'library' object.
+        self._load(module, 'loaded', library=library)
+        return library
+
+    def _get_declarations(self):
+        lst = [(key, tp) for (key, (tp, qual)) in
+                                self.ffi._parser._declarations.items()]
+        lst.sort()
+        return lst
+
+    def _generate(self, step_name):
+        for name, tp in self._get_declarations():
+            kind, realname = name.split(' ', 1)
+            try:
+                method = getattr(self, '_generate_gen_%s_%s' % (kind,
+                                                                step_name))
+            except AttributeError:
+                raise VerificationError(
+                    "not implemented in verify(): %r" % name)
+            try:
+                method(tp, realname)
+            except Exception as e:
+                model.attach_exception_info(e, name)
+                raise
+
+    def _load(self, module, step_name, **kwds):
+        for name, tp in self._get_declarations():
+            kind, realname = name.split(' ', 1)
+            method = getattr(self, '_%s_gen_%s' % (step_name, kind))
+            try:
+                method(tp, realname, module, **kwds)
+            except Exception as e:
+                model.attach_exception_info(e, name)
+                raise
+
+    def _generate_nothing(self, tp, name):
+        pass
+
+    def _loaded_noop(self, tp, name, module, **kwds):
+        pass
+
+    # ----------
+    # typedefs: generates no code so far
+
+    _generate_gen_typedef_decl   = _generate_nothing
+    _loading_gen_typedef         = _loaded_noop
+    _loaded_gen_typedef          = _loaded_noop
+
+    # ----------
+    # function declarations
+
+    def _generate_gen_function_decl(self, tp, name):
+        assert isinstance(tp, model.FunctionPtrType)
+        if tp.ellipsis:
+            # cannot support vararg functions better than this: check for its
+            # exact type (including the fixed arguments), and build it as a
+            # constant function pointer (no _cffi_f_%s wrapper)
+            self._generate_gen_const(False, name, tp)
+            return
+        prnt = self._prnt
+        numargs = len(tp.args)
+        argnames = []
+        for i, type in enumerate(tp.args):
+            indirection = ''
+            if isinstance(type, model.StructOrUnion):
+                indirection = '*'
+            argnames.append('%sx%d' % (indirection, i))
+        context = 'argument of %s' % name
+        arglist = [type.get_c_name(' %s' % arg, context)
+                   for type, arg in zip(tp.args, argnames)]
+        tpresult = tp.result
+        if isinstance(tpresult, model.StructOrUnion):
+            arglist.insert(0, tpresult.get_c_name(' *r', context))
+            tpresult = model.void_type
+        arglist = ', '.join(arglist) or 'void'
+        wrappername = '_cffi_f_%s' % name
+        self.export_symbols.append(wrappername)
+        if tp.abi:
+            abi = tp.abi + ' '
+        else:
+            abi = ''
+        funcdecl = ' %s%s(%s)' % (abi, wrappername, arglist)
+        context = 'result of %s' % name
+        prnt(tpresult.get_c_name(funcdecl, context))
+        prnt('{')
+        #
+        if isinstance(tp.result, model.StructOrUnion):
+            result_code = '*r = '
+        elif not isinstance(tp.result, model.VoidType):
+            result_code = 'return '
+        else:
+            result_code = ''
+        prnt('  %s%s(%s);' % (result_code, name, ', '.join(argnames)))
+        prnt('}')
+        prnt()
+
+    _loading_gen_function = _loaded_noop
+
+    def _loaded_gen_function(self, tp, name, module, library):
+        assert isinstance(tp, model.FunctionPtrType)
+        if tp.ellipsis:
+            newfunction = self._load_constant(False, tp, name, module)
+        else:
+            indirections = []
+            base_tp = tp
+            if (any(isinstance(typ, model.StructOrUnion) for typ in tp.args)
+                    or isinstance(tp.result, model.StructOrUnion)):
+                indirect_args = []
+                for i, typ in enumerate(tp.args):
+                    if isinstance(typ, model.StructOrUnion):
+                        typ = model.PointerType(typ)
+                        indirections.append((i, typ))
+                    indirect_args.append(typ)
+                indirect_result = tp.result
+                if isinstance(indirect_result, model.StructOrUnion):
+                    if indirect_result.fldtypes is None:
+                        raise TypeError("'%s' is used as result type, "
+                                        "but is opaque" % (
+                                            indirect_result._get_c_name(),))
+                    indirect_result = model.PointerType(indirect_result)
+                    indirect_args.insert(0, indirect_result)
+                    indirections.insert(0, ("result", indirect_result))
+                    indirect_result = model.void_type
+                tp = model.FunctionPtrType(tuple(indirect_args),
+                                           indirect_result, tp.ellipsis)
+            BFunc = self.ffi._get_cached_btype(tp)
+            wrappername = '_cffi_f_%s' % name
+            newfunction = module.load_function(BFunc, wrappername)
+            for i, typ in indirections:
+                newfunction = self._make_struct_wrapper(newfunction, i, typ,
+                                                        base_tp)
+        setattr(library, name, newfunction)
+        type(library)._cffi_dir.append(name)
+
+    def _make_struct_wrapper(self, oldfunc, i, tp, base_tp):
+        backend = self.ffi._backend
+        BType = self.ffi._get_cached_btype(tp)
+        if i == "result":
+            ffi = self.ffi
+            def newfunc(*args):
+                res = ffi.new(BType)
+                oldfunc(res, *args)
+                return res[0]
+        else:
+            def newfunc(*args):
+                args = args[:i] + (backend.newp(BType, args[i]),) + args[i+1:]
+                return oldfunc(*args)
+        newfunc._cffi_base_type = base_tp
+        return newfunc
+
+    # ----------
+    # named structs
+
+    def _generate_gen_struct_decl(self, tp, name):
+        assert name == tp.name
+        self._generate_struct_or_union_decl(tp, 'struct', name)
+
+    def _loading_gen_struct(self, tp, name, module):
+        self._loading_struct_or_union(tp, 'struct', name, module)
+
+    def _loaded_gen_struct(self, tp, name, module, **kwds):
+        self._loaded_struct_or_union(tp)
+
+    def _generate_gen_union_decl(self, tp, name):
+        assert name == tp.name
+        self._generate_struct_or_union_decl(tp, 'union', name)
+
+    def _loading_gen_union(self, tp, name, module):
+        self._loading_struct_or_union(tp, 'union', name, module)
+
+    def _loaded_gen_union(self, tp, name, module, **kwds):
+        self._loaded_struct_or_union(tp)
+
+    def _generate_struct_or_union_decl(self, tp, prefix, name):
+        if tp.fldnames is None:
+            return     # nothing to do with opaque structs
+        checkfuncname = '_cffi_check_%s_%s' % (prefix, name)
+        layoutfuncname = '_cffi_layout_%s_%s' % (prefix, name)
+        cname = ('%s %s' % (prefix, name)).strip()
+        #
+        prnt = self._prnt
+        prnt('static void %s(%s *p)' % (checkfuncname, cname))
+        prnt('{')
+        prnt('  /* only to generate compile-time warnings or errors */')
+        prnt('  (void)p;')
+        for fname, ftype, fbitsize, fqual in tp.enumfields():
+            if (isinstance(ftype, model.PrimitiveType)
+                and ftype.is_integer_type()) or fbitsize >= 0:
+                # accept all integers, but complain on float or double
+                prnt('  (void)((p->%s) << 1);' % fname)
+            else:
+                # only accept exactly the type declared.
+                try:
+                    prnt('  { %s = &p->%s; (void)tmp; }' % (
+                        ftype.get_c_name('*tmp', 'field %r'%fname, quals=fqual),
+                        fname))
+                except VerificationError as e:
+                    prnt('  /* %s */' % str(e))   # cannot verify it, ignore
+        prnt('}')
+        self.export_symbols.append(layoutfuncname)
+        prnt('intptr_t %s(intptr_t i)' % (layoutfuncname,))
+        prnt('{')
+        prnt('  struct _cffi_aligncheck { char x; %s y; };' % cname)
+        prnt('  static intptr_t nums[] = {')
+        prnt('    sizeof(%s),' % cname)
+        prnt('    offsetof(struct _cffi_aligncheck, y),')
+        for fname, ftype, fbitsize, fqual in tp.enumfields():
+            if fbitsize >= 0:
+                continue      # xxx ignore fbitsize for now
+            prnt('    offsetof(%s, %s),' % (cname, fname))
+            if isinstance(ftype, model.ArrayType) and ftype.length is None:
+                prnt('    0,  /* %s */' % ftype._get_c_name())
+            else:
+                prnt('    sizeof(((%s *)0)->%s),' % (cname, fname))
+        prnt('    -1')
+        prnt('  };')
+        prnt('  return nums[i];')
+        prnt('  /* the next line is not executed, but compiled */')
+        prnt('  %s(0);' % (checkfuncname,))
+        prnt('}')
+        prnt()
+
+    def _loading_struct_or_union(self, tp, prefix, name, module):
+        if tp.fldnames is None:
+            return     # nothing to do with opaque structs
+        layoutfuncname = '_cffi_layout_%s_%s' % (prefix, name)
+        #
+        BFunc = self.ffi._typeof_locked("intptr_t(*)(intptr_t)")[0]
+        function = module.load_function(BFunc, layoutfuncname)
+        layout = []
+        num = 0
+        while True:
+            x = function(num)
+            if x < 0: break
+            layout.append(x)
+            num += 1
+        if isinstance(tp, model.StructOrUnion) and tp.partial:
+            # use the function()'s sizes and offsets to guide the
+            # layout of the struct
+            totalsize = layout[0]
+            totalalignment = layout[1]
+            fieldofs = layout[2::2]
+            fieldsize = layout[3::2]
+            tp.force_flatten()
+            assert len(fieldofs) == len(fieldsize) == len(tp.fldnames)
+            tp.fixedlayout = fieldofs, fieldsize, totalsize, totalalignment
+        else:
+            cname = ('%s %s' % (prefix, name)).strip()
+            self._struct_pending_verification[tp] = layout, cname
+
+    def _loaded_struct_or_union(self, tp):
+        if tp.fldnames is None:
+            return     # nothing to do with opaque structs
+        self.ffi._get_cached_btype(tp)   # force 'fixedlayout' to be considered
+
+        if tp in self._struct_pending_verification:
+            # check that the layout sizes and offsets match the real ones
+            def check(realvalue, expectedvalue, msg):
+                if realvalue != expectedvalue:
+                    raise VerificationError(
+                        "%s (we have %d, but C compiler says %d)"
+                        % (msg, expectedvalue, realvalue))
+            ffi = self.ffi
+            BStruct = ffi._get_cached_btype(tp)
+            layout, cname = self._struct_pending_verification.pop(tp)
+            check(layout[0], ffi.sizeof(BStruct), "wrong total size")
+            check(layout[1], ffi.alignof(BStruct), "wrong total alignment")
+            i = 2
+            for fname, ftype, fbitsize, fqual in tp.enumfields():
+                if fbitsize >= 0:
+                    continue        # xxx ignore fbitsize for now
+                check(layout[i], ffi.offsetof(BStruct, fname),
+                      "wrong offset for field %r" % (fname,))
+                if layout[i+1] != 0:
+                    BField = ffi._get_cached_btype(ftype)
+                    check(layout[i+1], ffi.sizeof(BField),
+                          "wrong size for field %r" % (fname,))
+                i += 2
+            assert i == len(layout)
+
+    # ----------
+    # 'anonymous' declarations.  These are produced for anonymous structs
+    # or unions; the 'name' is obtained by a typedef.
+
+    def _generate_gen_anonymous_decl(self, tp, name):
+        if isinstance(tp, model.EnumType):
+            self._generate_gen_enum_decl(tp, name, '')
+        else:
+            self._generate_struct_or_union_decl(tp, '', name)
+
+    def _loading_gen_anonymous(self, tp, name, module):
+        if isinstance(tp, model.EnumType):
+            self._loading_gen_enum(tp, name, module, '')
+        else:
+            self._loading_struct_or_union(tp, '', name, module)
+
+    def _loaded_gen_anonymous(self, tp, name, module, **kwds):
+        if isinstance(tp, model.EnumType):
+            self._loaded_gen_enum(tp, name, module, **kwds)
+        else:
+            self._loaded_struct_or_union(tp)
+
+    # ----------
+    # constants, likely declared with '#define'
+
+    def _generate_gen_const(self, is_int, name, tp=None, category='const',
+                            check_value=None):
+        prnt = self._prnt
+        funcname = '_cffi_%s_%s' % (category, name)
+        self.export_symbols.append(funcname)
+        if check_value is not None:
+            assert is_int
+            assert category == 'const'
+            prnt('int %s(char *out_error)' % funcname)
+            prnt('{')
+            self._check_int_constant_value(name, check_value)
+            prnt('  return 0;')
+            prnt('}')
+        elif is_int:
+            assert category == 'const'
+            prnt('int %s(long long *out_value)' % funcname)
+            prnt('{')
+            prnt('  *out_value = (long long)(%s);' % (name,))
+            prnt('  return (%s) <= 0;' % (name,))
+            prnt('}')
+        else:
+            assert tp is not None
+            assert check_value is None
+            if category == 'var':
+                ampersand = '&'
+            else:
+                ampersand = ''
+            extra = ''
+            if category == 'const' and isinstance(tp, model.StructOrUnion):
+                extra = 'const *'
+                ampersand = '&'
+            prnt(tp.get_c_name(' %s%s(void)' % (extra, funcname), name))
+            prnt('{')
+            prnt('  return (%s%s);' % (ampersand, name))
+            prnt('}')
+        prnt()
+
+    def _generate_gen_constant_decl(self, tp, name):
+        is_int = isinstance(tp, model.PrimitiveType) and tp.is_integer_type()
+        self._generate_gen_const(is_int, name, tp)
+
+    _loading_gen_constant = _loaded_noop
+
+    def _load_constant(self, is_int, tp, name, module, check_value=None):
+        funcname = '_cffi_const_%s' % name
+        if check_value is not None:
+            assert is_int
+            self._load_known_int_constant(module, funcname)
+            value = check_value
+        elif is_int:
+            BType = self.ffi._typeof_locked("long long*")[0]
+            BFunc = self.ffi._typeof_locked("int(*)(long long*)")[0]
+            function = module.load_function(BFunc, funcname)
+            p = self.ffi.new(BType)
+            negative = function(p)
+            value = int(p[0])
+            if value < 0 and not negative:
+                BLongLong = self.ffi._typeof_locked("long long")[0]
+                value += (1 << (8*self.ffi.sizeof(BLongLong)))
+        else:
+            assert check_value is None
+            fntypeextra = '(*)(void)'
+            if isinstance(tp, model.StructOrUnion):
+                fntypeextra = '*' + fntypeextra
+            BFunc = self.ffi._typeof_locked(tp.get_c_name(fntypeextra, name))[0]
+            function = module.load_function(BFunc, funcname)
+            value = function()
+            if isinstance(tp, model.StructOrUnion):
+                value = value[0]
+        return value
+
+    def _loaded_gen_constant(self, tp, name, module, library):
+        is_int = isinstance(tp, model.PrimitiveType) and tp.is_integer_type()
+        value = self._load_constant(is_int, tp, name, module)
+        setattr(library, name, value)
+        type(library)._cffi_dir.append(name)
+
+    # ----------
+    # enums
+
+    def _check_int_constant_value(self, name, value):
+        prnt = self._prnt
+        if value <= 0:
+            prnt('  if ((%s) > 0 || (long)(%s) != %dL) {' % (
+                name, name, value))
+        else:
+            prnt('  if ((%s) <= 0 || (unsigned long)(%s) != %dUL) {' % (
+                name, name, value))
+        prnt('    char buf[64];')
+        prnt('    if ((%s) <= 0)' % name)
+        prnt('        sprintf(buf, "%%ld", (long)(%s));' % name)
+        prnt('    else')
+        prnt('        sprintf(buf, "%%lu", (unsigned long)(%s));' %
+             name)
+        prnt('    sprintf(out_error, "%s has the real value %s, not %s",')
+        prnt('            "%s", buf, "%d");' % (name[:100], value))
+        prnt('    return -1;')
+        prnt('  }')
+
+    def _load_known_int_constant(self, module, funcname):
+        BType = self.ffi._typeof_locked("char[]")[0]
+        BFunc = self.ffi._typeof_locked("int(*)(char*)")[0]
+        function = module.load_function(BFunc, funcname)
+        p = self.ffi.new(BType, 256)
+        if function(p) < 0:
+            error = self.ffi.string(p)
+            if sys.version_info >= (3,):
+                error = str(error, 'utf-8')
+            raise VerificationError(error)
+
+    def _enum_funcname(self, prefix, name):
+        # "$enum_$1" => "___D_enum____D_1"
+        name = name.replace('$', '___D_')
+        return '_cffi_e_%s_%s' % (prefix, name)
+
+    def _generate_gen_enum_decl(self, tp, name, prefix='enum'):
+        if tp.partial:
+            for enumerator in tp.enumerators:
+                self._generate_gen_const(True, enumerator)
+            return
+        #
+        funcname = self._enum_funcname(prefix, name)
+        self.export_symbols.append(funcname)
+        prnt = self._prnt
+        prnt('int %s(char *out_error)' % funcname)
+        prnt('{')
+        for enumerator, enumvalue in zip(tp.enumerators, tp.enumvalues):
+            self._check_int_constant_value(enumerator, enumvalue)
+        prnt('  return 0;')
+        prnt('}')
+        prnt()
+
+    def _loading_gen_enum(self, tp, name, module, prefix='enum'):
+        if tp.partial:
+            enumvalues = [self._load_constant(True, tp, enumerator, module)
+                          for enumerator in tp.enumerators]
+            tp.enumvalues = tuple(enumvalues)
+            tp.partial_resolved = True
+        else:
+            funcname = self._enum_funcname(prefix, name)
+            self._load_known_int_constant(module, funcname)
+
+    def _loaded_gen_enum(self, tp, name, module, library):
+        for enumerator, enumvalue in zip(tp.enumerators, tp.enumvalues):
+            setattr(library, enumerator, enumvalue)
+            type(library)._cffi_dir.append(enumerator)
+
+    # ----------
+    # macros: for now only for integers
+
+    def _generate_gen_macro_decl(self, tp, name):
+        if tp == '...':
+            check_value = None
+        else:
+            check_value = tp     # an integer
+        self._generate_gen_const(True, name, check_value=check_value)
+
+    _loading_gen_macro = _loaded_noop
+
+    def _loaded_gen_macro(self, tp, name, module, library):
+        if tp == '...':
+            check_value = None
+        else:
+            check_value = tp     # an integer
+        value = self._load_constant(True, tp, name, module,
+                                    check_value=check_value)
+        setattr(library, name, value)
+        type(library)._cffi_dir.append(name)
+
+    # ----------
+    # global variables
+
+    def _generate_gen_variable_decl(self, tp, name):
+        if isinstance(tp, model.ArrayType):
+            if tp.length_is_unknown():
+                prnt = self._prnt
+                funcname = '_cffi_sizeof_%s' % (name,)
+                self.export_symbols.append(funcname)
+                prnt("size_t %s(void)" % funcname)
+                prnt("{")
+                prnt("  return sizeof(%s);" % (name,))
+                prnt("}")
+            tp_ptr = model.PointerType(tp.item)
+            self._generate_gen_const(False, name, tp_ptr)
+        else:
+            tp_ptr = model.PointerType(tp)
+            self._generate_gen_const(False, name, tp_ptr, category='var')
+
+    _loading_gen_variable = _loaded_noop
+
+    def _loaded_gen_variable(self, tp, name, module, library):
+        if isinstance(tp, model.ArrayType):   # int a[5] is "constant" in the
+                                              # sense that "a=..." is forbidden
+            if tp.length_is_unknown():
+                funcname = '_cffi_sizeof_%s' % (name,)
+                BFunc = self.ffi._typeof_locked('size_t(*)(void)')[0]
+                function = module.load_function(BFunc, funcname)
+                size = function()
+                BItemType = self.ffi._get_cached_btype(tp.item)
+                length, rest = divmod(size, self.ffi.sizeof(BItemType))
+                if rest != 0:
+                    raise VerificationError(
+                        "bad size: %r does not seem to be an array of %s" %
+                        (name, tp.item))
+                tp = tp.resolve_length(length)
+            tp_ptr = model.PointerType(tp.item)
+            value = self._load_constant(False, tp_ptr, name, module)
+            # 'value' is a <cdata 'type *'> which we have to replace with
+            # a <cdata 'type[N]'> if the N is actually known
+            if tp.length is not None:
+                BArray = self.ffi._get_cached_btype(tp)
+                value = self.ffi.cast(BArray, value)
+            setattr(library, name, value)
+            type(library)._cffi_dir.append(name)
+            return
+        # remove ptr=<cdata 'int *'> from the library instance, and replace
+        # it by a property on the class, which reads/writes into ptr[0].
+        funcname = '_cffi_var_%s' % name
+        BFunc = self.ffi._typeof_locked(tp.get_c_name('*(*)(void)', name))[0]
+        function = module.load_function(BFunc, funcname)
+        ptr = function()
+        def getter(library):
+            return ptr[0]
+        def setter(library, value):
+            ptr[0] = value
+        setattr(type(library), name, property(getter, setter))
+        type(library)._cffi_dir.append(name)
+
+cffimod_header = r'''
+#include <stdio.h>
+#include <stddef.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <sys/types.h>   /* XXX for ssize_t on some platforms */
+
+/* this block of #ifs should be kept exactly identical between
+   c/_cffi_backend.c, cffi/vengine_cpy.py, cffi/vengine_gen.py
+   and cffi/_cffi_include.h */
+#if defined(_MSC_VER)
+# include <malloc.h>   /* for alloca() */
+# if _MSC_VER < 1600   /* MSVC < 2010 */
+   typedef __int8 int8_t;
+   typedef __int16 int16_t;
+   typedef __int32 int32_t;
+   typedef __int64 int64_t;
+   typedef unsigned __int8 uint8_t;
+   typedef unsigned __int16 uint16_t;
+   typedef unsigned __int32 uint32_t;
+   typedef unsigned __int64 uint64_t;
+   typedef __int8 int_least8_t;
+   typedef __int16 int_least16_t;
+   typedef __int32 int_least32_t;
+   typedef __int64 int_least64_t;
+   typedef unsigned __int8 uint_least8_t;
+   typedef unsigned __int16 uint_least16_t;
+   typedef unsigned __int32 uint_least32_t;
+   typedef unsigned __int64 uint_least64_t;
+   typedef __int8 int_fast8_t;
+   typedef __int16 int_fast16_t;
+   typedef __int32 int_fast32_t;
+   typedef __int64 int_fast64_t;
+   typedef unsigned __int8 uint_fast8_t;
+   typedef unsigned __int16 uint_fast16_t;
+   typedef unsigned __int32 uint_fast32_t;
+   typedef unsigned __int64 uint_fast64_t;
+   typedef __int64 intmax_t;
+   typedef unsigned __int64 uintmax_t;
+# else
+#  include <stdint.h>
+# endif
+# if _MSC_VER < 1800   /* MSVC < 2013 */
+#  ifndef __cplusplus
+    typedef unsigned char _Bool;
+#  endif
+# endif
+# define _cffi_float_complex_t   _Fcomplex    /* include <complex.h> for it */
+# define _cffi_double_complex_t  _Dcomplex    /* include <complex.h> for it */
+#else
+# include <stdint.h>
+# if (defined (__SVR4) && defined (__sun)) || defined(_AIX) || defined(__hpux)
+#  include <alloca.h>
+# endif
+# define _cffi_float_complex_t   float _Complex
+# define _cffi_double_complex_t  double _Complex
+#endif
+'''

.venv/lib/python3.12/site-packages/cffi/verifier.py

@@ -0,0 +1,306 @@
+#
+# DEPRECATED: implementation for ffi.verify()
+#
+import sys, os, binascii, shutil, io
+from . import __version_verifier_modules__
+from . import ffiplatform
+from .error import VerificationError
+
+if sys.version_info >= (3, 3):
+    import importlib.machinery
+    def _extension_suffixes():
+        return importlib.machinery.EXTENSION_SUFFIXES[:]
+else:
+    import imp
+    def _extension_suffixes():
+        return [suffix for suffix, _, type in imp.get_suffixes()
+                if type == imp.C_EXTENSION]
+
+
+if sys.version_info >= (3,):
+    NativeIO = io.StringIO
+else:
+    class NativeIO(io.BytesIO):
+        def write(self, s):
+            if isinstance(s, unicode):
+                s = s.encode('ascii')
+            super(NativeIO, self).write(s)
+
+
+class Verifier(object):
+
+    def __init__(self, ffi, preamble, tmpdir=None, modulename=None,
+                 ext_package=None, tag='', force_generic_engine=False,
+                 source_extension='.c', flags=None, relative_to=None, **kwds):
+        if ffi._parser._uses_new_feature:
+            raise VerificationError(
+                "feature not supported with ffi.verify(), but only "
+                "with ffi.set_source(): %s" % (ffi._parser._uses_new_feature,))
+        self.ffi = ffi
+        self.preamble = preamble
+        if not modulename:
+            flattened_kwds = ffiplatform.flatten(kwds)
+        vengine_class = _locate_engine_class(ffi, force_generic_engine)
+        self._vengine = vengine_class(self)
+        self._vengine.patch_extension_kwds(kwds)
+        self.flags = flags
+        self.kwds = self.make_relative_to(kwds, relative_to)
+        #
+        if modulename:
+            if tag:
+                raise TypeError("can't specify both 'modulename' and 'tag'")
+        else:
+            key = '\x00'.join(['%d.%d' % sys.version_info[:2],
+                               __version_verifier_modules__,
+                               preamble, flattened_kwds] +
+                              ffi._cdefsources)
+            if sys.version_info >= (3,):
+                key = key.encode('utf-8')
+            k1 = hex(binascii.crc32(key[0::2]) & 0xffffffff)
+            k1 = k1.lstrip('0x').rstrip('L')
+            k2 = hex(binascii.crc32(key[1::2]) & 0xffffffff)
+            k2 = k2.lstrip('0').rstrip('L')
+            modulename = '_cffi_%s_%s%s%s' % (tag, self._vengine._class_key,
+                                              k1, k2)
+        suffix = _get_so_suffixes()[0]
+        self.tmpdir = tmpdir or _caller_dir_pycache()
+        self.sourcefilename = os.path.join(self.tmpdir, modulename + source_extension)
+        self.modulefilename = os.path.join(self.tmpdir, modulename + suffix)
+        self.ext_package = ext_package
+        self._has_source = False
+        self._has_module = False
+
+    def write_source(self, file=None):
+        """Write the C source code.  It is produced in 'self.sourcefilename',
+        which can be tweaked beforehand."""
+        with self.ffi._lock:
+            if self._has_source and file is None:
+                raise VerificationError(
+                    "source code already written")
+            self._write_source(file)
+
+    def compile_module(self):
+        """Write the C source code (if not done already) and compile it.
+        This produces a dynamic link library in 'self.modulefilename'."""
+        with self.ffi._lock:
+            if self._has_module:
+                raise VerificationError("module already compiled")
+            if not self._has_source:
+                self._write_source()
+            self._compile_module()
+
+    def load_library(self):
+        """Get a C module from this Verifier instance.
+        Returns an instance of a FFILibrary class that behaves like the
+        objects returned by ffi.dlopen(), but that delegates all
+        operations to the C module.  If necessary, the C code is written
+        and compiled first.
+        """
+        with self.ffi._lock:
+            if not self._has_module:
+                self._locate_module()
+                if not self._has_module:
+                    if not self._has_source:
+                        self._write_source()
+                    self._compile_module()
+            return self._load_library()
+
+    def get_module_name(self):
+        basename = os.path.basename(self.modulefilename)
+        # kill both the .so extension and the other .'s, as introduced
+        # by Python 3: 'basename.cpython-33m.so'
+        basename = basename.split('.', 1)[0]
+        # and the _d added in Python 2 debug builds --- but try to be
+        # conservative and not kill a legitimate _d
+        if basename.endswith('_d') and hasattr(sys, 'gettotalrefcount'):
+            basename = basename[:-2]
+        return basename
+
+    def get_extension(self):
+        if not self._has_source:
+            with self.ffi._lock:
+                if not self._has_source:
+                    self._write_source()
+        sourcename = ffiplatform.maybe_relative_path(self.sourcefilename)
+        modname = self.get_module_name()
+        return ffiplatform.get_extension(sourcename, modname, **self.kwds)
+
+    def generates_python_module(self):
+        return self._vengine._gen_python_module
+
+    def make_relative_to(self, kwds, relative_to):
+        if relative_to and os.path.dirname(relative_to):
+            dirname = os.path.dirname(relative_to)
+            kwds = kwds.copy()
+            for key in ffiplatform.LIST_OF_FILE_NAMES:
+                if key in kwds:
+                    lst = kwds[key]
+                    if not isinstance(lst, (list, tuple)):
+                        raise TypeError("keyword '%s' should be a list or tuple"
+                                        % (key,))
+                    lst = [os.path.join(dirname, fn) for fn in lst]
+                    kwds[key] = lst
+        return kwds
+
+    # ----------
+
+    def _locate_module(self):
+        if not os.path.isfile(self.modulefilename):
+            if self.ext_package:
+                try:
+                    pkg = __import__(self.ext_package, None, None, ['__doc__'])
+                except ImportError:
+                    return      # cannot import the package itself, give up
+                    # (e.g. it might be called differently before installation)
+                path = pkg.__path__
+            else:
+                path = None
+            filename = self._vengine.find_module(self.get_module_name(), path,
+                                                 _get_so_suffixes())
+            if filename is None:
+                return
+            self.modulefilename = filename
+        self._vengine.collect_types()
+        self._has_module = True
+
+    def _write_source_to(self, file):
+        self._vengine._f = file
+        try:
+            self._vengine.write_source_to_f()
+        finally:
+            del self._vengine._f
+
+    def _write_source(self, file=None):
+        if file is not None:
+            self._write_source_to(file)
+        else:
+            # Write our source file to an in memory file.
+            f = NativeIO()
+            self._write_source_to(f)
+            source_data = f.getvalue()
+
+            # Determine if this matches the current file
+            if os.path.exists(self.sourcefilename):
+                with open(self.sourcefilename, "r") as fp:
+                    needs_written = not (fp.read() == source_data)
+            else:
+                needs_written = True
+
+            # Actually write the file out if it doesn't match
+            if needs_written:
+                _ensure_dir(self.sourcefilename)
+                with open(self.sourcefilename, "w") as fp:
+                    fp.write(source_data)
+
+            # Set this flag
+            self._has_source = True
+
+    def _compile_module(self):
+        # compile this C source
+        tmpdir = os.path.dirname(self.sourcefilename)
+        outputfilename = ffiplatform.compile(tmpdir, self.get_extension())
+        try:
+            same = ffiplatform.samefile(outputfilename, self.modulefilename)
+        except OSError:
+            same = False
+        if not same:
+            _ensure_dir(self.modulefilename)
+            shutil.move(outputfilename, self.modulefilename)
+        self._has_module = True
+
+    def _load_library(self):
+        assert self._has_module
+        if self.flags is not None:
+            return self._vengine.load_library(self.flags)
+        else:
+            return self._vengine.load_library()
+
+# ____________________________________________________________
+
+_FORCE_GENERIC_ENGINE = False      # for tests
+
+def _locate_engine_class(ffi, force_generic_engine):
+    if _FORCE_GENERIC_ENGINE:
+        force_generic_engine = True
+    if not force_generic_engine:
+        if '__pypy__' in sys.builtin_module_names:
+            force_generic_engine = True
+        else:
+            try:
+                import _cffi_backend
+            except ImportError:
+                _cffi_backend = '?'
+            if ffi._backend is not _cffi_backend:
+                force_generic_engine = True
+    if force_generic_engine:
+        from . import vengine_gen
+        return vengine_gen.VGenericEngine
+    else:
+        from . import vengine_cpy
+        return vengine_cpy.VCPythonEngine
+
+# ____________________________________________________________
+
+_TMPDIR = None
+
+def _caller_dir_pycache():
+    if _TMPDIR:
+        return _TMPDIR
+    result = os.environ.get('CFFI_TMPDIR')
+    if result:
+        return result
+    filename = sys._getframe(2).f_code.co_filename
+    return os.path.abspath(os.path.join(os.path.dirname(filename),
+                           '__pycache__'))
+
+def set_tmpdir(dirname):
+    """Set the temporary directory to use instead of __pycache__."""
+    global _TMPDIR
+    _TMPDIR = dirname
+
+def cleanup_tmpdir(tmpdir=None, keep_so=False):
+    """Clean up the temporary directory by removing all files in it
+    called `_cffi_*.{c,so}` as well as the `build` subdirectory."""
+    tmpdir = tmpdir or _caller_dir_pycache()
+    try:
+        filelist = os.listdir(tmpdir)
+    except OSError:
+        return
+    if keep_so:
+        suffix = '.c'   # only remove .c files
+    else:
+        suffix = _get_so_suffixes()[0].lower()
+    for fn in filelist:
+        if fn.lower().startswith('_cffi_') and (
+                fn.lower().endswith(suffix) or fn.lower().endswith('.c')):
+            try:
+                os.unlink(os.path.join(tmpdir, fn))
+            except OSError:
+                pass
+    clean_dir = [os.path.join(tmpdir, 'build')]
+    for dir in clean_dir:
+        try:
+            for fn in os.listdir(dir):
+                fn = os.path.join(dir, fn)
+                if os.path.isdir(fn):
+                    clean_dir.append(fn)
+                else:
+                    os.unlink(fn)
+        except OSError:
+            pass
+
+def _get_so_suffixes():
+    suffixes = _extension_suffixes()
+    if not suffixes:
+        # bah, no C_EXTENSION available.  Occurs on pypy without cpyext
+        if sys.platform == 'win32':
+            suffixes = [".pyd"]
+        else:
+            suffixes = [".so"]
+
+    return suffixes
+
+def _ensure_dir(filename):
+    dirname = os.path.dirname(filename)
+    if dirname and not os.path.isdir(dirname):
+        os.makedirs(dirname)

.venv/lib/python3.12/site-packages/curl_cffi-0.14.0.dist-info/INSTALLER

@@ -0,0 +1 @@
+pip

.venv/lib/python3.12/site-packages/curl_cffi-0.14.0.dist-info/METADATA

@@ -0,0 +1,343 @@
+Metadata-Version: 2.4
+Name: curl_cffi
+Version: 0.14.0
+Summary: libcurl ffi bindings for Python, with impersonation support.
+Author-email: lexiforest <infinitesheldon@gmail.com>
+License: MIT License
+Project-URL: repository, https://github.com/lexiforest/curl_cffi
+Classifier: Development Status :: 4 - Beta
+Classifier: Intended Audience :: Developers
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: 3.13
+Classifier: Programming Language :: Python :: 3.14
+Requires-Python: >=3.10
+Description-Content-Type: text/markdown
+License-File: LICENSE
+Requires-Dist: cffi>=1.12.0
+Requires-Dist: certifi>=2024.2.2
+Provides-Extra: extra
+Requires-Dist: readability-lxml>=0.8.1; extra == "extra"
+Requires-Dist: markdownify>=1.1.0; extra == "extra"
+Requires-Dist: lxml_html_clean; extra == "extra"
+Provides-Extra: dev
+Requires-Dist: charset_normalizer<4.0,>=3.3.2; extra == "dev"
+Requires-Dist: coverage<7.0,>=6.4.1; extra == "dev"
+Requires-Dist: cryptography<43.0,>=42.0.5; extra == "dev"
+Requires-Dist: httpx==0.23.1; extra == "dev"
+Requires-Dist: mypy<2.0,>=1.9.0; extra == "dev"
+Requires-Dist: pytest<9.0,>=8.1.1; extra == "dev"
+Requires-Dist: pytest-asyncio<1.0,>=0.23.6; extra == "dev"
+Requires-Dist: pytest-trio<1.0,>=0.8.0; extra == "dev"
+Requires-Dist: ruff<1.0,>=0.3.5; extra == "dev"
+Requires-Dist: trio<1.0,>=0.25.0; extra == "dev"
+Requires-Dist: trustme<2.0,>=1.1.0; extra == "dev"
+Requires-Dist: uvicorn<1.0,>=0.29.0; extra == "dev"
+Requires-Dist: websockets>=14.0; extra == "dev"
+Requires-Dist: typing_extensions; extra == "dev"
+Provides-Extra: build
+Requires-Dist: cibuildwheel; extra == "build"
+Requires-Dist: wheel; extra == "build"
+Provides-Extra: test
+Requires-Dist: charset_normalizer<4.0,>=3.3.2; extra == "test"
+Requires-Dist: cryptography<43.0,>=42.0.5; extra == "test"
+Requires-Dist: fastapi<1.0,>=0.110.0; extra == "test"
+Requires-Dist: httpx==0.23.1; extra == "test"
+Requires-Dist: proxy.py<3.0,>=2.4.3; extra == "test"
+Requires-Dist: pytest<9.0,>=8.1.1; extra == "test"
+Requires-Dist: pytest-asyncio<1.0,>=0.23.6; extra == "test"
+Requires-Dist: pytest-trio<1.0,>=0.8.0; extra == "test"
+Requires-Dist: python-multipart<1.0,>=0.0.9; extra == "test"
+Requires-Dist: trio<1.0,>=0.25.0; extra == "test"
+Requires-Dist: trustme<2.0,>=1.1.0; extra == "test"
+Requires-Dist: uvicorn<1.0,>=0.29.0; extra == "test"
+Requires-Dist: websockets>=14.0; extra == "test"
+Requires-Dist: typing_extensions; extra == "test"
+Dynamic: license-file
+
+# curl_cffi
+
+[![PyPI Downloads](https://static.pepy.tech/badge/curl-cffi/week)](https://pepy.tech/projects/curl-cffi)
+![PyPI - Python Version](https://img.shields.io/pypi/pyversions/curl_cffi)
+[![PyPI version](https://badge.fury.io/py/curl-cffi.svg)](https://badge.fury.io/py/curl-cffi)
+[![Generic badge](https://img.shields.io/badge/Telegram%20Group-join-blue?logo=telegram)](https://t.me/real_curl_cffi)
+[![Generic badge](https://img.shields.io/badge/Discord-join-purple?logo=blue)](https://discord.gg/kJqMHHgdn2)
+
+[Documentation](https://curl-cffi.readthedocs.io)
+
+Python binding for [curl-impersonate fork](https://github.com/lexiforest/curl-impersonate)
+via [cffi](https://cffi.readthedocs.io/en/latest/). For commercial support, visit [impersonate.pro](https://impersonate.pro).
+
+`curl_cffi` is the most popular Python binding for `curl`. Unlike other pure
+python http clients like `httpx` or `requests`, `curl_cffi` can impersonate
+browsers' TLS/JA3 and HTTP/2 fingerprints. If you are blocked by some
+website for no obvious reason, you can give `curl_cffi` a try.
+
+Python 3.9 is the minimum supported version since v0.10.
+
+## Recall.ai - API for meeting recordings
+
+<a href="https://www.recall.ai/?utm_source=github&utm_medium=sponsorship&utm_campaign=lexiforest-curl_cffi" target="_blank"><img src="https://cdn.prod.website-files.com/620d732b1f1f7b244ac89f0e/66b294e51ee15f18dd2b171e_recall-logo.svg" alt="Recall.ai" height="47" width="149"></a>
+
+If you’re looking for a meeting recording API, consider checking out [Recall.ai](https://www.recall.ai/?utm_source=github&utm_medium=sponsorship&utm_campaign=lexiforest-curl_cffi), an API that records Zoom, Google Meet, Microsoft Teams, in-person meetings, and more.
+
+## Residential Proxies
+
+<a href="https://www.thordata.com/?ls=github&lk=curl_cffi" target="_blank"><img src="https://raw.githubusercontent.com/lexiforest/curl_cffi/main/assets/thordata.png" alt="Thordata" height="126" width="240"></a>
+
+Thordata: A reliable and cost-effective proxy service provider. One-click collection of public network data, providing enterprises and developers with stable, efficient, and compliant global proxy IP services. Register for a free trial of [residential proxies](https://www.thordata.com/products/residential-proxies/?ls=github&lk=curl_cffi) and receive 2000 free SERP API calls.
+
+## Sponsors
+
+Maintenance of this project is made possible by all the <a href="https://github.com/lexiforest/curl_cffi/graphs/contributors">contributors</a> and <a href="https://github.com/sponsors/lexiforest">sponsors</a>. If you'd like to sponsor this project and have your avatar or company logo appear below <a href="https://github.com/sponsors/lexiforest">click here</a>. 💖
+
+------
+
+### Bypass Cloudflare with API
+
+<a href="https://yescaptcha.com/i/stfnIO" target="_blank"><img src="https://raw.githubusercontent.com/lexiforest/curl_cffi/main/assets/yescaptcha.png" alt="Yes Captcha!" height="47" width="149"></a>
+
+Yescaptcha is a proxy service that bypasses Cloudflare and uses the API interface to
+obtain verified cookies (e.g. `cf_clearance`). Click [here](https://yescaptcha.com/i/stfnIO)
+to register: https://yescaptcha.com/i/stfnIO
+
+------
+
+<a href="https://hypersolutions.co/?utm_source=github&utm_medium=readme&utm_campaign=curl_cffi" target="_blank"><img src="https://raw.githubusercontent.com/lexiforest/curl_cffi/main/assets/hypersolutions.png" height="47" width="149"></a>
+
+TLS fingerprinting alone isn't enough for modern bot protection. [Hyper Solutions](https://hypersolutions.co?utm_source=github&utm_medium=readme&utm_campaign=curl_cffi) provides the missing piece - API endpoints that generate valid antibot tokens for:
+
+Akamai • DataDome • Kasada • Incapsula
+
+No browser automation. Just simple API calls that return the exact cookies and headers these systems require.
+
+🚀 [Get Your API Key](https://hypersolutions.co?utm_source=github&utm_medium=readme&utm_campaign=curl_cffi) | 📖 [Docs](https://docs.justhyped.dev) | 💬 [Discord](https://discord.gg/akamai)
+
+------
+
+## Features
+
+- Supports JA3/TLS and http2 fingerprints impersonation, including recent browsers and custom fingerprints.
+- Much faster than requests/httpx, on par with aiohttp/pycurl, see [benchmarks](https://github.com/lexiforest/curl_cffi/tree/main/benchmark).
+- Mimics the requests API, no need to learn another one.
+- Pre-compiled, so you don't have to compile on your machine.
+- Supports `asyncio` with proxy rotation on each request.
+- Supports http 2.0 & 3.0, which requests does not.
+- Supports websocket.
+- MIT licensed.
+
+||requests|aiohttp|httpx|pycurl|curl_cffi|
+|---|---|---|---|---|---|
+|http/2|❌|❌|✅|✅|✅|
+|http/3|❌|❌|❌|☑️<sup>1</sup>|✅<sup>2</sup>|
+|sync|✅|❌|✅|✅|✅|
+|async|❌|✅|✅|❌|✅|
+|websocket|❌|✅|❌|❌|✅|
+|fingerprints|❌|❌|❌|❌|✅|
+|speed|🐇|🐇🐇|🐇|🐇🐇|🐇🐇|
+
+Notes:
+1. For pycurl, you need an http/3 enabled libcurl to make it work, while curl_cffi packages libcurl-impersonate inside Python wheels.
+2. Since v0.11.4.
+
+## Install
+
+    pip install curl_cffi --upgrade
+
+This should work on Linux, macOS and Windows out of the box.
+If it does not work on you platform, you may need to compile and install `curl-impersonate`
+first and set some environment variables like `LD_LIBRARY_PATH`.
+
+To install beta releases:
+
+    pip install curl_cffi --upgrade --pre
+
+To install unstable version from GitHub:
+
+    git clone https://github.com/lexiforest/curl_cffi/
+    cd curl_cffi
+    make preprocess
+    pip install .
+
+On macOS, you may need to install the following dependencies:
+
+    brew install zstd nghttp2
+
+## Usage
+
+`curl_cffi` comes with a low-level `curl` API and a high-level `requests`-like API.
+
+### requests-like
+
+
+```python
+import curl_cffi
+
+# Notice the impersonate parameter
+r = curl_cffi.get("https://tls.browserleaks.com/json", impersonate="chrome")
+
+print(r.json())
+# output: {..., "ja3n_hash": "aa56c057ad164ec4fdcb7a5a283be9fc", ...}
+# the js3n fingerprint should be the same as target browser
+
+# To keep using the latest browser version as `curl_cffi` updates,
+# simply set impersonate="chrome" without specifying a version.
+# Other similar values are: "safari" and "safari_ios"
+r = curl_cffi.get("https://tls.browserleaks.com/json", impersonate="chrome")
+
+# Randomly choose a browser version based on current market share in real world
+# from: https://caniuse.com/usage-table
+# NOTE: this is a pro feature.
+r = curl_cffi.get("https://example.com", impersonate="realworld")
+
+# To pin a specific version, use version numbers together.
+r = curl_cffi.get("https://tls.browserleaks.com/json", impersonate="chrome124")
+
+# To impersonate other than browsers, bring your own ja3/akamai strings
+# See examples directory for details.
+r = curl_cffi.get("https://tls.browserleaks.com/json", ja3=..., akamai=...)
+
+# http/socks proxies are supported
+proxies = {"https": "http://localhost:3128"}
+r = curl_cffi.get("https://tls.browserleaks.com/json", impersonate="chrome", proxies=proxies)
+
+proxies = {"https": "socks://localhost:3128"}
+r = curl_cffi.get("https://tls.browserleaks.com/json", impersonate="chrome", proxies=proxies)
+```
+
+### Sessions
+
+```python
+s = curl_cffi.Session()
+
+# httpbin is a http test website, this endpoint makes the server set cookies
+s.get("https://httpbin.org/cookies/set/foo/bar")
+print(s.cookies)
+# <Cookies[<Cookie foo=bar for httpbin.org />]>
+
+# retrieve cookies again to verify
+r = s.get("https://httpbin.org/cookies")
+print(r.json())
+# {'cookies': {'foo': 'bar'}}
+```
+
+### Supported impersonate browsers
+
+`curl_cffi` supports the same browser versions as supported by my [fork](https://github.com/lexiforest/curl-impersonate) of [curl-impersonate](https://github.com/lwthiker/curl-impersonate):
+
+Open source version of curl_cffi includes versions whose fingerprints differ from previous versions.
+If you see a version, e.g. `chrome135`, were skipped, you can simply impersonate it with your own headers and the previous version.
+
+If you don't want to look up the headers etc, by yourself, consider buying commercial support from [impersonate.pro](https://impersonate.pro),
+we have comprehensive browser fingerprints database for almost all the browser versions on various platforms.
+
+If you are trying to impersonate a target other than a browser, use `ja3=...` and `akamai=...`
+to specify your own customized fingerprints. See the [docs on impersonation](https://curl-cffi.readthedocs.io/en/latest/impersonate/_index.html) for details.
+
+|Browser|Open Source| Pro version|
+|---|---|---|
+|Chrome|chrome99, chrome100, chrome101, chrome104, chrome107, chrome110, chrome116<sup>[1]</sup>, chrome119<sup>[1]</sup>, chrome120<sup>[1]</sup>, chrome123<sup>[3]</sup>, chrome124<sup>[3]</sup>, chrome131<sup>[4]</sup>, chrome133a<sup>[5][6]</sup>, chrome136<sup>[6]</sup>|chrome132, chrome134, chrome135|
+|Chrome Android| chrome99_android, chrome131_android <sup>[4]</sup>|chrome132_android, chrome133_android, chrome134_android, chrome135_android|
+|Chrome iOS|N/A|coming soon|
+|Safari <sup>[7]</sup>|safari153 <sup>[2]</sup>, safari155 <sup>[2]</sup>, safari170 <sup>[1]</sup>, safari180 <sup>[4]</sup>, safari184 <sup>[6]</sup>, safari260 <sup>[8]</sup>|coming soon|
+|Safari iOS <sup>[7]</sup>| safari172_ios<sup>[1]</sup>, safari180_ios<sup>[4]</sup>, safari184_ios <sup>[6]</sup>, safari260_ios <sup>[8]</sup>|coming soon|
+|Firefox|firefox133<sup>[5]</sup>, firefox135<sup>[7]</sup>|coming soon|
+|Firefox Android|N/A|firefox135_android|
+|Tor|tor145 <sup>[7]</sup>|coming soon|
+|Edge|edge99, edge101|edge133, edge135|
+|Opera|N/A|coming soon|
+|Brave|N/A|coming soon|
+
+
+Notes:
+1. Added in version `0.6.0`.
+2. Fixed in version `0.6.0`, previous http2 fingerprints were [not correct](https://github.com/lwthiker/curl-impersonate/issues/215).
+3. Added in version `0.7.0`.
+4. Added in version `0.8.0`.
+5. Added in version `0.9.0`.
+6. The version postfix `-a`(e.g. `chrome133a`) means that this is an alternative version, i.e. the fingerprint has not been officially updated by browser, but has been observed because of A/B testing.
+5. Added in version `0.10.0`.
+6. Added in version `0.11.0`.
+7. Since `0.11.0`, the format `safari184_ios` is preferred over `safari18_4_ios`, both are supported, but the latter is quite confusing and hard to parse.
+8. Added in  `0.12.0`.
+
+### Asyncio
+
+```python
+from curl_cffi import AsyncSession
+
+async with AsyncSession() as s:
+    r = await s.get("https://example.com")
+```
+
+More concurrency:
+
+```python
+import asyncio
+from curl_cffi import AsyncSession
+
+urls = [
+    "https://google.com/",
+    "https://facebook.com/",
+    "https://twitter.com/",
+]
+
+async with AsyncSession() as s:
+    tasks = []
+    for url in urls:
+        task = s.get(url)
+        tasks.append(task)
+    results = await asyncio.gather(*tasks)
+```
+
+For low-level APIs, Scrapy integration and other advanced topics, see the
+[docs](https://curl-cffi.readthedocs.io) for more details.
+
+
+### WebSockets
+
+```python
+from curl_cffi import WebSocket
+
+def on_message(ws: WebSocket, message: str | bytes):
+    print(message)
+
+ws = WebSocket(on_message=on_message)
+ws.run_forever("wss://api.gemini.com/v1/marketdata/BTCUSD")
+```
+
+### Asyncio WebSockets
+
+```python
+import asyncio
+from curl_cffi import AsyncSession
+
+async with AsyncSession() as s:
+    ws = await s.ws_connect("wss://echo.websocket.org")
+    await asyncio.gather(*[ws.send_str("Hello, World!") for _ in range(10)])
+    await ws.flush()
+    async for message in ws:
+        print(message)
+    await ws.close()
+```
+
+## Ecosystem
+
+- Integrating with Scrapy: [divtiply/scrapy-curl-cffi](https://github.com/divtiply/scrapy-curl-cffi), [jxlil/scrapy-impersonate](https://github.com/jxlil/scrapy-impersonate) and [tieyongjie/scrapy-fingerprint](https://github.com/tieyongjie/scrapy-fingerprint).
+- Integrating with [requests](https://github.com/el1s7/curl-adapter), [httpx](https://github.com/vgavro/httpx-curl-cffi) as adapter.
+- Integrating with captcha resolvers: [YesCaptcha](https://yescaptcha.atlassian.net/wiki/spaces/YESCAPTCHA/overview). Please see the head area for promo code and link.
+
+## Acknowledgement
+
+- Originally forked from [multippt/python_curl_cffi](https://github.com/multippt/python_curl_cffi), which is under the MIT license.
+- Headers/Cookies files are copied from [httpx](https://github.com/encode/httpx/blob/master/httpx/_models.py), which is under the BSD license.
+- Asyncio support is inspired by Tornado's curl http client.
+- The synchronous WebSocket API is inspired by [websocket_client](https://github.com/websocket-client/websocket-client).
+- The asynchronous WebSocket API is inspired by [aiohttp](https://github.com/aio-libs/aiohttp).
+
+## Contributing
+
+When submitting an PR, please use a different branch other than `main` and check the
+"Allow edits by maintainers" box, so I can update your PR with lint or style fixes. Thanks!

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.venv/lib/python3.12/site-packages/curl_cffi-0.14.0.dist-info/WHEEL

@@ -0,0 +1,6 @@
+Wheel-Version: 1.0
+Generator: setuptools (80.9.0)
+Root-Is-Purelib: false
+Tag: cp39-abi3-manylinux_2_26_x86_64
+Tag: cp39-abi3-manylinux_2_28_x86_64
+

.venv/lib/python3.12/site-packages/curl_cffi-0.14.0.dist-info/entry_points.txt

@@ -0,0 +1,2 @@
+[console_scripts]
+curl-cffi = curl_cffi.cli:main

.venv/lib/python3.12/site-packages/curl_cffi-0.14.0.dist-info/licenses/LICENSE

@@ -0,0 +1,23 @@
+MIT License
+
+
+Copyright (c) 2018 multippt
+Copyright (c) 2022 curl_cffi developers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

.venv/lib/python3.12/site-packages/curl_cffi-0.14.0.dist-info/top_level.txt

@@ -0,0 +1 @@
+curl_cffi

.venv/lib/python3.12/site-packages/curl_cffi/__init__.py

@@ -0,0 +1,96 @@
+__all__ = [
+    "Curl",
+    "AsyncCurl",
+    "CurlMime",
+    "CurlError",
+    "CurlInfo",
+    "CurlOpt",
+    "CurlMOpt",
+    "CurlECode",
+    "CurlHttpVersion",
+    "CurlSslVersion",
+    "CurlWsFlag",
+    "config_warnings",
+    "ffi",
+    "is_pro",
+    "lib",
+    "Session",
+    "AsyncSession",
+    "BrowserType",
+    "BrowserTypeLiteral",
+    "request",
+    "head",
+    "get",
+    "post",
+    "put",
+    "patch",
+    "delete",
+    "options",
+    "Cookies",
+    "Headers",
+    "Request",
+    "Response",
+    "AsyncWebSocket",
+    "WebSocket",
+    "WebSocketError",
+    "WebSocketClosed",
+    "WebSocketTimeout",
+    "WsCloseCode",
+    "ExtraFingerprints",
+    "CookieTypes",
+    "HeaderTypes",
+    "ProxySpec",
+    "exceptions",
+]
+
+import _cffi_backend  # noqa: F401  # required by _wrapper
+
+from .__version__ import __curl_version__, __description__, __title__, __version__  # noqa: F401
+
+# This line includes _wrapper.so into the wheel
+from ._wrapper import ffi, lib
+from .aio import AsyncCurl
+from .const import (
+    CurlECode,
+    CurlHttpVersion,
+    CurlInfo,
+    CurlMOpt,
+    CurlOpt,
+    CurlSslVersion,
+    CurlWsFlag,
+)
+from .curl import Curl, CurlError, CurlMime
+
+from .requests import (
+    AsyncSession,
+    AsyncWebSocket,
+    BrowserType,
+    BrowserTypeLiteral,
+    Cookies,
+    CookieTypes,
+    ExtraFingerprints,
+    Headers,
+    HeaderTypes,
+    ProxySpec,
+    Request,
+    Response,
+    Session,
+    WebSocket,
+    WebSocketClosed,
+    WebSocketError,
+    WebSocketTimeout,
+    WsCloseCode,
+    delete,
+    exceptions,
+    get,
+    head,
+    options,
+    patch,
+    post,
+    put,
+    request,
+)
+
+from .utils import config_warnings, is_pro
+
+config_warnings(on=False)

.venv/lib/python3.12/site-packages/curl_cffi/__version__.py

@@ -0,0 +1,8 @@
+from importlib import metadata
+
+from .curl import Curl
+
+__title__ = "curl_cffi"
+__description__ = metadata.metadata("curl_cffi")["Summary"]
+__version__ = metadata.version("curl_cffi")
+__curl_version__ = Curl().version().decode()

.venv/lib/python3.12/site-packages/curl_cffi/_asyncio_selector.py

@@ -0,0 +1,344 @@
+"""Ensure asyncio selector methods (add_reader, etc.) are available
+tornado 6.1 adds AddThreadSelectorEventLoop event loop,
+running select in a thread and defining these methods on the running event loop.
+This factors out the functionality of AddThreadSelectorEventLoop
+into a standalone SelectorThread object which can be attached to any running event loop.
+Vendored from tornado v6.4.0
+Redistributed under license Apache-2.0
+"""
+
+import asyncio
+import atexit
+import errno
+import functools
+import select
+import socket
+import threading
+import typing
+from collections.abc import Callable
+from contextlib import suppress
+from typing import (
+    Any,
+    Optional,
+    Protocol,
+    TypeVar,
+    Union,
+)
+
+_T = TypeVar("_T")
+
+
+class _HasFileno(Protocol):
+    def fileno(self) -> int:
+        return 0
+
+
+_FileDescriptorLike = Union[int, _HasFileno]
+
+
+# Collection of selector thread event loops to shut down on exit.
+_selector_loops: set["SelectorThread"] = set()
+
+
+def _atexit_callback() -> None:
+    for loop in _selector_loops:
+        with loop._select_cond:
+            loop._closing_selector = True
+            loop._select_cond.notify()
+        with suppress(BlockingIOError):
+            loop._waker_w.send(b"a")
+        if loop._thread is not None:
+            # If we don't join our (daemon) thread here, we may get a deadlock
+            # during interpreter shutdown. I don't really understand why. This
+            # deadlock happens every time in CI (both travis and appveyor) but
+            # I've never been able to reproduce locally.
+            loop._thread.join()
+    _selector_loops.clear()
+
+
+atexit.register(_atexit_callback)
+
+
+class SelectorThread:
+    """Define ``add_reader`` methods to be called in a background select thread.
+
+    Instances of this class start a second thread to run a selector.
+    This thread is completely hidden from the user;
+    all callbacks are run on the wrapped event loop's thread.
+
+    Typically used via ``AddThreadSelectorEventLoop``,
+    but can be attached to a running asyncio loop.
+    """
+
+    _closed = False
+
+    def __init__(self, real_loop: asyncio.AbstractEventLoop) -> None:
+        self._real_loop = real_loop
+
+        self._select_cond = threading.Condition()
+        self._select_args: Optional[
+            tuple[list[_FileDescriptorLike], list[_FileDescriptorLike]]
+        ] = None
+        self._closing_selector = False
+        self._thread: Optional[threading.Thread] = None
+        self._thread_manager_handle = self._thread_manager()
+
+        async def thread_manager_anext() -> None:
+            # the anext builtin wasn't added until 3.10. We just need to iterate
+            # this generator one step.
+            await self._thread_manager_handle.__anext__()
+
+        # When the loop starts, start the thread. Not too soon because we can't
+        # clean up if we get to this point but the event loop is closed without
+        # starting.
+        self._real_loop.call_soon(
+            lambda: self._real_loop.create_task(thread_manager_anext())
+        )
+
+        self._readers: dict[_FileDescriptorLike, Callable] = {}
+        self._writers: dict[_FileDescriptorLike, Callable] = {}
+
+        # Writing to _waker_w will wake up the selector thread, which
+        # watches for _waker_r to be readable.
+        self._waker_r, self._waker_w = socket.socketpair()
+        self._waker_r.setblocking(False)
+        self._waker_w.setblocking(False)
+        _selector_loops.add(self)
+        self.add_reader(self._waker_r, self._consume_waker)
+
+    def close(self) -> None:
+        if self._closed:
+            return
+        with self._select_cond:
+            self._closing_selector = True
+            self._select_cond.notify()
+        self._wake_selector()
+        if self._thread is not None:
+            self._thread.join()
+        _selector_loops.discard(self)
+        self.remove_reader(self._waker_r)
+        self._waker_r.close()
+        self._waker_w.close()
+        self._closed = True
+
+    async def _thread_manager(self) -> typing.AsyncGenerator[None, None]:
+        # Create a thread to run the select system call. We manage this thread
+        # manually so we can trigger a clean shutdown from an atexit hook. Note
+        # that due to the order of operations at shutdown, only daemon threads
+        # can be shut down in this way (non-daemon threads would require the
+        # introduction of a new hook: https://bugs.python.org/issue41962)
+        self._thread = threading.Thread(
+            name="Tornado selector",
+            daemon=True,
+            target=self._run_select,
+        )
+        self._thread.start()
+        self._start_select()
+        try:
+            # The presense of this yield statement means that this coroutine
+            # is actually an asynchronous generator, which has a special
+            # shutdown protocol. We wait at this yield point until the
+            # event loop's shutdown_asyncgens method is called, at which point
+            # we will get a GeneratorExit exception and can shut down the
+            # selector thread.
+            yield
+        except GeneratorExit:
+            self.close()
+            raise
+
+    def _wake_selector(self) -> None:
+        if self._closed:
+            return
+        with suppress(BlockingIOError):
+            self._waker_w.send(b"a")
+
+    def _consume_waker(self) -> None:
+        with suppress(BlockingIOError):
+            self._waker_r.recv(1024)
+
+    def _start_select(self) -> None:
+        # Capture reader and writer sets here in the event loop
+        # thread to avoid any problems with concurrent
+        # modification while the select loop uses them.
+        with self._select_cond:
+            assert self._select_args is None
+            self._select_args = (list(self._readers.keys()), list(self._writers.keys()))
+            self._select_cond.notify()
+
+    def _run_select(self) -> None:
+        while True:
+            with self._select_cond:
+                while self._select_args is None and not self._closing_selector:
+                    self._select_cond.wait()
+                if self._closing_selector:
+                    return
+                assert self._select_args is not None
+                to_read, to_write = self._select_args
+                self._select_args = None
+
+            # We use the simpler interface of the select module instead of
+            # the more stateful interface in the selectors module because
+            # this class is only intended for use on windows, where
+            # select.select is the only option. The selector interface
+            # does not have well-documented thread-safety semantics that
+            # we can rely on so ensuring proper synchronization would be
+            # tricky.
+            try:
+                # On windows, selecting on a socket for write will not
+                # return the socket when there is an error (but selecting
+                # for reads works). Also select for errors when selecting
+                # for writes, and merge the results.
+                #
+                # This pattern is also used in
+                # https://github.com/python/cpython/blob/v3.8.0/Lib/selectors.py#L312-L317
+                rs, ws, xs = select.select(to_read, to_write, to_write)
+                ws = ws + xs
+            except OSError as e:
+                # After remove_reader or remove_writer is called, the file
+                # descriptor may subsequently be closed on the event loop
+                # thread. It's possible that this select thread hasn't
+                # gotten into the select system call by the time that
+                # happens in which case (at least on macOS), select may
+                # raise a "bad file descriptor" error. If we get that
+                # error, check and see if we're also being woken up by
+                # polling the waker alone. If we are, just return to the
+                # event loop and we'll get the updated set of file
+                # descriptors on the next iteration. Otherwise, raise the
+                # original error.
+                if e.errno == getattr(errno, "WSAENOTSOCK", errno.EBADF):
+                    rs, _, _ = select.select([self._waker_r.fileno()], [], [], 0)
+                    if rs:
+                        ws = []
+                    else:
+                        raise
+                else:
+                    raise
+
+            try:
+                self._real_loop.call_soon_threadsafe(self._handle_select, rs, ws)
+            except RuntimeError:
+                # "Event loop is closed". Swallow the exception for
+                # consistency with PollIOLoop (and logical consistency
+                # with the fact that we can't guarantee that an
+                # add_callback that completes without error will
+                # eventually execute).
+                pass
+            except AttributeError:
+                # ProactorEventLoop may raise this instead of RuntimeError
+                # if call_soon_threadsafe races with a call to close().
+                # Swallow it too for consistency.
+                pass
+
+    def _handle_select(
+        self, rs: list[_FileDescriptorLike], ws: list[_FileDescriptorLike]
+    ) -> None:
+        for r in rs:
+            self._handle_event(r, self._readers)
+        for w in ws:
+            self._handle_event(w, self._writers)
+        self._start_select()
+
+    def _handle_event(
+        self,
+        fd: _FileDescriptorLike,
+        cb_map: dict[_FileDescriptorLike, Callable],
+    ) -> None:
+        try:
+            callback = cb_map[fd]
+        except KeyError:
+            return
+        callback()
+
+    def add_reader(
+        self, fd: _FileDescriptorLike, callback: Callable[..., None], *args: Any
+    ) -> None:
+        self._readers[fd] = functools.partial(callback, *args)
+        self._wake_selector()
+
+    def add_writer(
+        self, fd: _FileDescriptorLike, callback: Callable[..., None], *args: Any
+    ) -> None:
+        self._writers[fd] = functools.partial(callback, *args)
+        self._wake_selector()
+
+    def remove_reader(self, fd: _FileDescriptorLike) -> bool:
+        try:
+            del self._readers[fd]
+        except KeyError:
+            return False
+        self._wake_selector()
+        return True
+
+    def remove_writer(self, fd: _FileDescriptorLike) -> bool:
+        try:
+            del self._writers[fd]
+        except KeyError:
+            return False
+        self._wake_selector()
+        return True
+
+
+class AddThreadSelectorEventLoop(asyncio.AbstractEventLoop):
+    """Wrap an event loop to add implementations of the ``add_reader`` method family.
+
+    Instances of this class start a second thread to run a selector.
+    This thread is completely hidden from the user; all callbacks are
+    run on the wrapped event loop's thread.
+
+    This class is used automatically by Tornado; applications should not need
+    to refer to it directly.
+
+    It is safe to wrap any event loop with this class, although it only makes sense
+    for event loops that do not implement the ``add_reader`` family of methods
+    themselves (i.e. ``WindowsProactorEventLoop``)
+
+    Closing the ``AddThreadSelectorEventLoop`` also closes the wrapped event loop.
+
+    """
+
+    # This class is a __getattribute__-based proxy. All attributes other than those
+    # in this set are proxied through to the underlying loop.
+    MY_ATTRIBUTES = {
+        "_real_loop",
+        "_selector",
+        "add_reader",
+        "add_writer",
+        "close",
+        "remove_reader",
+        "remove_writer",
+    }
+
+    def __getattribute__(self, name: str) -> Any:
+        if name in AddThreadSelectorEventLoop.MY_ATTRIBUTES:
+            return super().__getattribute__(name)
+        return getattr(self._real_loop, name)
+
+    def __init__(self, real_loop: asyncio.AbstractEventLoop) -> None:
+        self._real_loop = real_loop
+        self._selector = SelectorThread(real_loop)
+
+    def close(self) -> None:
+        self._selector.close()
+        self._real_loop.close()
+
+    def add_reader(  # type: ignore
+        self,
+        fd: "_FileDescriptorLike",
+        callback: Callable[..., None],
+        *args: Any,
+    ) -> None:
+        return self._selector.add_reader(fd, callback, *args)
+
+    def add_writer(  # type: ignore
+        self,
+        fd: "_FileDescriptorLike",
+        callback: Callable[..., None],
+        *args: Any,  # type: ignore
+    ) -> None:
+        return self._selector.add_writer(fd, callback, *args)
+
+    def remove_reader(self, fd: "_FileDescriptorLike") -> bool:
+        return self._selector.remove_reader(fd)
+
+    def remove_writer(self, fd: "_FileDescriptorLike") -> bool:
+        return self._selector.remove_writer(fd)

.venv/lib/python3.12/site-packages/curl_cffi/aio.py

@@ -0,0 +1,343 @@
+import asyncio
+import sys
+import warnings
+from contextlib import suppress
+from typing import Any, Optional
+from weakref import WeakKeyDictionary
+
+from ._wrapper import ffi, lib
+from .const import CurlECode, CurlMOpt
+from .curl import DEFAULT_CACERT, Curl, CurlError
+from .utils import CurlCffiWarning
+
+__all__ = ["AsyncCurl"]
+
+if sys.platform == "win32":
+    # registry of asyncio loop : selector thread
+    _selectors: WeakKeyDictionary = WeakKeyDictionary()
+    PROACTOR_WARNING = """
+    Proactor event loop does not implement add_reader family of methods required.
+    Registering an additional selector thread for add_reader support.
+    To avoid this warning use:
+        asyncio.set_event_loop_policy(WindowsSelectorEventLoopPolicy())
+    """
+
+    def get_selector(
+        asyncio_loop: asyncio.AbstractEventLoop,
+    ) -> asyncio.AbstractEventLoop:
+        """Get selector-compatible loop
+
+        Returns an object with ``add_reader`` family of methods,
+        either the loop itself or a SelectorThread instance.
+
+        Workaround Windows proactor removal of *reader methods.
+        """
+
+        if asyncio_loop in _selectors:
+            return _selectors[asyncio_loop]
+
+        if not isinstance(
+            asyncio_loop, getattr(asyncio, "ProactorEventLoop", type(None))
+        ):
+            return asyncio_loop
+
+        warnings.warn(PROACTOR_WARNING, CurlCffiWarning, stacklevel=2)
+
+        from ._asyncio_selector import AddThreadSelectorEventLoop
+
+        selector_loop = _selectors[asyncio_loop] = AddThreadSelectorEventLoop(
+            asyncio_loop
+        )  # type: ignore
+
+        # patch loop.close to also close the selector thread
+        loop_close = asyncio_loop.close
+
+        def _close_selector_and_loop():
+            # restore original before calling selector.close,
+            # which in turn calls eventloop.close!
+            asyncio_loop.close = loop_close
+            _selectors.pop(asyncio_loop, None)
+            selector_loop.close()
+
+        asyncio_loop.close = _close_selector_and_loop
+        return selector_loop
+
+else:
+
+    def get_selector(loop: asyncio.AbstractEventLoop) -> asyncio.AbstractEventLoop:
+        return loop
+
+
+CURL_POLL_NONE = 0
+CURL_POLL_IN = 1
+CURL_POLL_OUT = 2
+CURL_POLL_INOUT = 3
+CURL_POLL_REMOVE = 4
+
+CURL_SOCKET_TIMEOUT = -1
+CURL_SOCKET_BAD = -1
+
+CURL_CSELECT_IN = 0x01
+CURL_CSELECT_OUT = 0x02
+CURL_CSELECT_ERR = 0x04
+
+CURLMSG_DONE = 1
+
+CURLPIPE_NOTHING = 0
+CURLPIPE_HTTP1 = 1  # deprecated
+CURLPIPE_MULTIPLEX = 2
+
+
+"""
+libcurl provides an event-based system for multiple handles with the following API:
+
+- curl_multi_socket_action, for detecting events
+- curl_multi_info_read, for reading the transfer status
+
+There are 2 callbacks:
+
+- socket_function, set by CURLMOPT_SOCKETFUNCTION, will be called for socket events.
+- timer_function, set by CURLMOPT_TIMERFUNCTION, will be called when timeouts happen.
+
+And it works like the following:
+
+Set up handles, callbacks first.
+
+When started, curl_multi_socket_action should be called to start everything.
+
+If there are data in/out, libcurl calls the socket_function callback, and it sets up
+`process_data` as asyncio loop reader/writer function. `process_data` will call
+curl_multi_info_read to determine whether a certain `await perform` has finished.
+
+When idle, libcurl will call the timer_function callback, which sets up a later call
+for socket_action to detect events.
+"""
+
+
+@ffi.def_extern()
+def timer_function(curlm, timeout_ms: int, clientp: Any) -> int:
+    """
+    see: https://curl.se/libcurl/c/CURLMOPT_TIMERFUNCTION.html
+    """
+    async_curl = ffi.from_handle(clientp)
+
+    # Cancel the timer anyway, if it's -1, yes, libcurl says it should be cancelled.
+    # If not, to add a new timer, we need to cancel the old timer.
+    if async_curl._timer:
+        async_curl._timer.cancel()  # If already called, cancel does nothing.
+        async_curl._timer = None
+
+    # libcurl says to install a timer which calls socket_action on fire.
+    async_curl._timer = async_curl.loop.call_later(
+        timeout_ms / 1000,
+        async_curl.process_data,
+        CURL_SOCKET_TIMEOUT,  # -1
+        CURL_POLL_NONE,  # 0
+    )
+
+    return 0
+
+
+@ffi.def_extern()
+def socket_function(curl, sockfd: int, what: int, clientp: Any, data: Any) -> int:
+    """This callback is called when libcurl decides it's time to interact with certain
+    sockets"""
+
+    async_curl = ffi.from_handle(clientp)
+    loop = async_curl.loop
+
+    # Always remove and re-add fds
+    if sockfd in async_curl._sockfds:
+        loop.remove_reader(sockfd)
+        loop.remove_writer(sockfd)
+
+    # Need to read from the socket
+    if what & CURL_POLL_IN:
+        loop.add_reader(sockfd, async_curl.process_data, sockfd, CURL_CSELECT_IN)
+        async_curl._sockfds.add(sockfd)
+
+    # Need to write to the socket
+    if what & CURL_POLL_OUT:
+        loop.add_writer(sockfd, async_curl.process_data, sockfd, CURL_CSELECT_OUT)
+        async_curl._sockfds.add(sockfd)
+
+    # Need to remove the socket
+    if what == CURL_POLL_REMOVE:
+        async_curl._sockfds.remove(sockfd)
+
+    return 0
+
+
+class AsyncCurl:
+    """Wrapper around curl_multi handle to provide asyncio support. It uses the libcurl
+    socket_action APIs."""
+
+    def __init__(self, cacert: str = "", loop=None):
+        """
+        Parameters:
+            cacert: CA cert path to use, by default, certs from ``certifi`` are used.
+            loop: EventLoop to use.
+        """
+        self._curlm = lib.curl_multi_init()
+        self._cacert = cacert or DEFAULT_CACERT
+        self._curl2future: dict[Curl, asyncio.Future] = {}  # curl to future map
+        self._curl2curl: dict[ffi.CData, Curl] = {}  # c curl to Curl
+        self._sockfds: set[int] = set()  # sockfds
+        self.loop = get_selector(
+            loop if loop is not None else asyncio.get_running_loop()
+        )
+        self._timeout_checker = self.loop.create_task(self._force_timeout())
+        self._timer: Optional[asyncio.TimerHandle] = None
+        self._setup()
+
+    def _setup(self):
+        self.setopt(CurlMOpt.TIMERFUNCTION, lib.timer_function)
+        self.setopt(CurlMOpt.SOCKETFUNCTION, lib.socket_function)
+        self._self_handle = ffi.new_handle(self)
+        self.setopt(CurlMOpt.SOCKETDATA, self._self_handle)
+        self.setopt(CurlMOpt.TIMERDATA, self._self_handle)
+        # self.setopt(CurlMOpt.PIPELINING, CURLPIPE_NOTHING)
+
+    async def close(self):
+        """Close and cleanup running timers, readers, writers and handles."""
+
+        # Close and wait for the force timeout checker to complete
+        self._timeout_checker.cancel()
+        with suppress(asyncio.CancelledError):
+            await self._timeout_checker
+
+        # Close all pending futures
+        for curl, future in self._curl2future.items():
+            lib.curl_multi_remove_handle(self._curlm, curl._curl)
+            if not future.done() and not future.cancelled():
+                future.set_result(None)
+
+        # Cleanup curl_multi handle
+        lib.curl_multi_cleanup(self._curlm)
+        self._curlm = None
+
+        # Remove add readers and writers
+        for sockfd in self._sockfds:
+            self.loop.remove_reader(sockfd)
+            self.loop.remove_writer(sockfd)
+
+        # Cancel all time functions
+        if self._timer:
+            self._timer.cancel()
+
+    async def _force_timeout(self):
+        """This coroutine is used to safeguard from any missing signals from curl, and
+        put everything back on track"""
+        while True:
+            if not self._curlm:
+                break
+            self.socket_action(CURL_SOCKET_TIMEOUT, CURL_POLL_NONE)
+            await asyncio.sleep(0.1)
+
+    def add_handle(self, curl: Curl):
+        """Add a curl handle to be managed by curl_multi. This is the equivalent of
+        `perform` in the async world."""
+
+        curl._ensure_cacert()
+        errcode = lib.curl_multi_add_handle(self._curlm, curl._curl)
+        self._check_error(errcode)
+        future = self.loop.create_future()
+        self._curl2future[curl] = future
+        self._curl2curl[curl._curl] = curl
+        return future
+
+    def socket_action(self, sockfd: int, ev_bitmask: int) -> int:
+        """wrapper for curl_multi_socket_action,
+        returns the number of running curl handles."""
+        running_handle = ffi.new("int *")
+        errcode = lib.curl_multi_socket_action(
+            self._curlm, sockfd, ev_bitmask, running_handle
+        )
+        self._check_error(errcode)
+        return running_handle[0]
+
+    def process_data(self, sockfd: int, ev_bitmask: int):
+        """Call curl_multi_info_read to read data for given socket."""
+        if not self._curlm:
+            warnings.warn(
+                "Curlm already closed! quitting from process_data",
+                CurlCffiWarning,
+                stacklevel=2,
+            )
+            return
+
+        self.socket_action(sockfd, ev_bitmask)
+
+        msg_in_queue = ffi.new("int *")
+        while True:
+            try:
+                curl_msg = lib.curl_multi_info_read(self._curlm, msg_in_queue)
+                # NULL is returned as a signal that no more to be get at this point
+                if curl_msg == ffi.NULL:
+                    break
+                if curl_msg.msg == CURLMSG_DONE:
+                    curl = self._curl2curl[curl_msg.easy_handle]
+                    retcode = curl_msg.data.result
+                    if retcode == 0:
+                        self.set_result(curl)
+                    else:
+                        self.set_exception(curl, curl._get_error(retcode, "perform"))
+                else:
+                    print("NOT DONE")  # Will not reach, for nothing else being defined.
+            except Exception:
+                warnings.warn(
+                    "Unexpected curl multi state in process_data, "
+                    "please open an issue on GitHub\n",
+                    CurlCffiWarning,
+                    stacklevel=2,
+                )
+
+    def _pop_future(self, curl: Curl):
+        errcode = lib.curl_multi_remove_handle(self._curlm, curl._curl)
+        self._check_error(errcode)
+        self._curl2curl.pop(curl._curl, None)
+        return self._curl2future.pop(curl, None)
+
+    def remove_handle(self, curl: Curl):
+        """Cancel a future for given curl handle."""
+        future = self._pop_future(curl)
+        if future and not future.done() and not future.cancelled():
+            future.cancel()
+
+    def set_result(self, curl: Curl):
+        """Mark a future as done for given curl handle."""
+        future = self._pop_future(curl)
+        if future and not future.done() and not future.cancelled():
+            future.set_result(None)
+
+    def set_exception(self, curl: Curl, exception):
+        """Raise exception of a future for given curl handle."""
+        future = self._pop_future(curl)
+        if future and not future.done() and not future.cancelled():
+            future.set_exception(exception)
+
+    def _check_error(self, errcode: int, *args: Any):
+        if errcode == CurlECode.OK:
+            return
+        errmsg = lib.curl_multi_strerror(errcode)
+        action = " ".join([str(a) for a in args])
+        raise CurlError(
+            f"Failed in {action}, multi: ({errcode}) {errmsg}. "
+            "See https://curl.se/libcurl/c/libcurl-errors.html first for more "
+            "details. Please open an issue on GitHub to help debug this error.",
+        )
+
+    def setopt(self, option, value):
+        """Wrapper around curl_multi_setopt."""
+        if option in (
+            CurlMOpt.PIPELINING,
+            CurlMOpt.MAXCONNECTS,
+            CurlMOpt.MAX_HOST_CONNECTIONS,
+            CurlMOpt.MAX_PIPELINE_LENGTH,
+            CurlMOpt.MAX_TOTAL_CONNECTIONS,
+            CurlMOpt.MAX_CONCURRENT_STREAMS,
+        ):
+            c_value = ffi.new("long*", value)
+        else:
+            c_value = value
+        return lib.curl_multi_setopt(self._curlm, option, c_value)

.venv/lib/python3.12/site-packages/curl_cffi/cli.py

@@ -0,0 +1,32 @@
+import argparse
+import sys
+import curl_cffi
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        prog="curl-cffi",
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
+        description="A curl-like tool using curl-cffi with browser impersonation",
+    )
+    parser.add_argument(
+        "-i",
+        "--impersonate",
+        default="chrome",
+        help="Browser to impersonate",
+    )
+    parser.add_argument("urls", nargs="+", help="URLs to fetch")
+
+    args = parser.parse_args()
+
+    for url in args.urls:
+        try:
+            response = curl_cffi.requests.get(url, impersonate=args.impersonate)
+            print(response.text)
+        except Exception as e:
+            print(f"Error fetching {url}: {e}", file=sys.stderr)
+            sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()

.venv/lib/python3.12/site-packages/curl_cffi/const.py

@@ -0,0 +1,613 @@
+# This file is automatically generated, do not modify it directly.
+
+from enum import IntEnum
+
+
+class CurlOpt(IntEnum):
+    """``CULROPT_`` constancs extracted from libcurl,
+    see: https://curl.se/libcurl/c/curl_easy_setopt.html"""
+
+    WRITEDATA = 10000 + 1
+    URL = 10000 + 2
+    PORT = 0 + 3
+    PROXY = 10000 + 4
+    USERPWD = 10000 + 5
+    PROXYUSERPWD = 10000 + 6
+    RANGE = 10000 + 7
+    READDATA = 10000 + 9
+    ERRORBUFFER = 10000 + 10
+    WRITEFUNCTION = 20000 + 11
+    READFUNCTION = 20000 + 12
+    TIMEOUT = 0 + 13
+    INFILESIZE = 0 + 14
+    POSTFIELDS = 10000 + 15
+    REFERER = 10000 + 16
+    FTPPORT = 10000 + 17
+    USERAGENT = 10000 + 18
+    LOW_SPEED_LIMIT = 0 + 19
+    LOW_SPEED_TIME = 0 + 20
+    RESUME_FROM = 0 + 21
+    COOKIE = 10000 + 22
+    HTTPHEADER = 10000 + 23
+    HTTPPOST = 10000 + 24
+    SSLCERT = 10000 + 25
+    KEYPASSWD = 10000 + 26
+    CRLF = 0 + 27
+    QUOTE = 10000 + 28
+    HEADERDATA = 10000 + 29
+    COOKIEFILE = 10000 + 31
+    SSLVERSION = 0 + 32
+    TIMECONDITION = 0 + 33
+    TIMEVALUE = 0 + 34
+    CUSTOMREQUEST = 10000 + 36
+    STDERR = 10000 + 37
+    POSTQUOTE = 10000 + 39
+    VERBOSE = 0 + 41
+    HEADER = 0 + 42
+    NOPROGRESS = 0 + 43
+    NOBODY = 0 + 44
+    FAILONERROR = 0 + 45
+    UPLOAD = 0 + 46
+    POST = 0 + 47
+    DIRLISTONLY = 0 + 48
+    APPEND = 0 + 50
+    NETRC = 0 + 51
+    FOLLOWLOCATION = 0 + 52
+    TRANSFERTEXT = 0 + 53
+    PUT = 0 + 54
+    PROGRESSFUNCTION = 20000 + 56
+    XFERINFODATA = 10000 + 57
+    AUTOREFERER = 0 + 58
+    PROXYPORT = 0 + 59
+    POSTFIELDSIZE = 0 + 60
+    HTTPPROXYTUNNEL = 0 + 61
+    INTERFACE = 10000 + 62
+    KRBLEVEL = 10000 + 63
+    SSL_VERIFYPEER = 0 + 64
+    CAINFO = 10000 + 65
+    MAXREDIRS = 0 + 68
+    FILETIME = 0 + 69
+    TELNETOPTIONS = 10000 + 70
+    MAXCONNECTS = 0 + 71
+    FRESH_CONNECT = 0 + 74
+    FORBID_REUSE = 0 + 75
+    RANDOM_FILE = 10000 + 76
+    EGDSOCKET = 10000 + 77
+    CONNECTTIMEOUT = 0 + 78
+    HEADERFUNCTION = 20000 + 79
+    HTTPGET = 0 + 80
+    SSL_VERIFYHOST = 0 + 81
+    COOKIEJAR = 10000 + 82
+    SSL_CIPHER_LIST = 10000 + 83
+    HTTP_VERSION = 0 + 84
+    FTP_USE_EPSV = 0 + 85
+    SSLCERTTYPE = 10000 + 86
+    SSLKEY = 10000 + 87
+    SSLKEYTYPE = 10000 + 88
+    SSLENGINE = 10000 + 89
+    SSLENGINE_DEFAULT = 0 + 90
+    DNS_USE_GLOBAL_CACHE = 0 + 91
+    DNS_CACHE_TIMEOUT = 0 + 92
+    PREQUOTE = 10000 + 93
+    DEBUGFUNCTION = 20000 + 94
+    DEBUGDATA = 10000 + 95
+    COOKIESESSION = 0 + 96
+    CAPATH = 10000 + 97
+    BUFFERSIZE = 0 + 98
+    NOSIGNAL = 0 + 99
+    SHARE = 10000 + 100
+    PROXYTYPE = 0 + 101
+    ACCEPT_ENCODING = 10000 + 102
+    PRIVATE = 10000 + 103
+    HTTP200ALIASES = 10000 + 104
+    UNRESTRICTED_AUTH = 0 + 105
+    FTP_USE_EPRT = 0 + 106
+    HTTPAUTH = 0 + 107
+    SSL_CTX_FUNCTION = 20000 + 108
+    SSL_CTX_DATA = 10000 + 109
+    FTP_CREATE_MISSING_DIRS = 0 + 110
+    PROXYAUTH = 0 + 111
+    SERVER_RESPONSE_TIMEOUT = 0 + 112
+    IPRESOLVE = 0 + 113
+    MAXFILESIZE = 0 + 114
+    INFILESIZE_LARGE = 30000 + 115
+    RESUME_FROM_LARGE = 30000 + 116
+    MAXFILESIZE_LARGE = 30000 + 117
+    NETRC_FILE = 10000 + 118
+    USE_SSL = 0 + 119
+    POSTFIELDSIZE_LARGE = 30000 + 120
+    TCP_NODELAY = 0 + 121
+    FTPSSLAUTH = 0 + 129
+    IOCTLFUNCTION = 20000 + 130
+    IOCTLDATA = 10000 + 131
+    FTP_ACCOUNT = 10000 + 134
+    COOKIELIST = 10000 + 135
+    IGNORE_CONTENT_LENGTH = 0 + 136
+    FTP_SKIP_PASV_IP = 0 + 137
+    FTP_FILEMETHOD = 0 + 138
+    LOCALPORT = 0 + 139
+    LOCALPORTRANGE = 0 + 140
+    CONNECT_ONLY = 0 + 141
+    CONV_FROM_NETWORK_FUNCTION = 20000 + 142
+    CONV_TO_NETWORK_FUNCTION = 20000 + 143
+    CONV_FROM_UTF8_FUNCTION = 20000 + 144
+    MAX_SEND_SPEED_LARGE = 30000 + 145
+    MAX_RECV_SPEED_LARGE = 30000 + 146
+    FTP_ALTERNATIVE_TO_USER = 10000 + 147
+    SOCKOPTFUNCTION = 20000 + 148
+    SOCKOPTDATA = 10000 + 149
+    SSL_SESSIONID_CACHE = 0 + 150
+    SSH_AUTH_TYPES = 0 + 151
+    SSH_PUBLIC_KEYFILE = 10000 + 152
+    SSH_PRIVATE_KEYFILE = 10000 + 153
+    FTP_SSL_CCC = 0 + 154
+    TIMEOUT_MS = 0 + 155
+    CONNECTTIMEOUT_MS = 0 + 156
+    HTTP_TRANSFER_DECODING = 0 + 157
+    HTTP_CONTENT_DECODING = 0 + 158
+    NEW_FILE_PERMS = 0 + 159
+    NEW_DIRECTORY_PERMS = 0 + 160
+    POSTREDIR = 0 + 161
+    SSH_HOST_PUBLIC_KEY_MD5 = 10000 + 162
+    OPENSOCKETFUNCTION = 20000 + 163
+    OPENSOCKETDATA = 10000 + 164
+    COPYPOSTFIELDS = 10000 + 165
+    PROXY_TRANSFER_MODE = 0 + 166
+    SEEKFUNCTION = 20000 + 167
+    SEEKDATA = 10000 + 168
+    CRLFILE = 10000 + 169
+    ISSUERCERT = 10000 + 170
+    ADDRESS_SCOPE = 0 + 171
+    CERTINFO = 0 + 172
+    USERNAME = 10000 + 173
+    PASSWORD = 10000 + 174
+    PROXYUSERNAME = 10000 + 175
+    PROXYPASSWORD = 10000 + 176
+    NOPROXY = 10000 + 177
+    TFTP_BLKSIZE = 0 + 178
+    SOCKS5_GSSAPI_SERVICE = 10000 + 179
+    SOCKS5_GSSAPI_NEC = 0 + 180
+    PROTOCOLS = 0 + 181
+    REDIR_PROTOCOLS = 0 + 182
+    SSH_KNOWNHOSTS = 10000 + 183
+    SSH_KEYFUNCTION = 20000 + 184
+    SSH_KEYDATA = 10000 + 185
+    MAIL_FROM = 10000 + 186
+    MAIL_RCPT = 10000 + 187
+    FTP_USE_PRET = 0 + 188
+    RTSP_REQUEST = 0 + 189
+    RTSP_SESSION_ID = 10000 + 190
+    RTSP_STREAM_URI = 10000 + 191
+    RTSP_TRANSPORT = 10000 + 192
+    RTSP_CLIENT_CSEQ = 0 + 193
+    RTSP_SERVER_CSEQ = 0 + 194
+    INTERLEAVEDATA = 10000 + 195
+    INTERLEAVEFUNCTION = 20000 + 196
+    WILDCARDMATCH = 0 + 197
+    CHUNK_BGN_FUNCTION = 20000 + 198
+    CHUNK_END_FUNCTION = 20000 + 199
+    FNMATCH_FUNCTION = 20000 + 200
+    CHUNK_DATA = 10000 + 201
+    FNMATCH_DATA = 10000 + 202
+    RESOLVE = 10000 + 203
+    TLSAUTH_USERNAME = 10000 + 204
+    TLSAUTH_PASSWORD = 10000 + 205
+    TLSAUTH_TYPE = 10000 + 206
+    TRANSFER_ENCODING = 0 + 207
+    CLOSESOCKETFUNCTION = 20000 + 208
+    CLOSESOCKETDATA = 10000 + 209
+    GSSAPI_DELEGATION = 0 + 210
+    DNS_SERVERS = 10000 + 211
+    ACCEPTTIMEOUT_MS = 0 + 212
+    TCP_KEEPALIVE = 0 + 213
+    TCP_KEEPIDLE = 0 + 214
+    TCP_KEEPINTVL = 0 + 215
+    SSL_OPTIONS = 0 + 216
+    MAIL_AUTH = 10000 + 217
+    SASL_IR = 0 + 218
+    XFERINFOFUNCTION = 20000 + 219
+    XOAUTH2_BEARER = 10000 + 220
+    DNS_INTERFACE = 10000 + 221
+    DNS_LOCAL_IP4 = 10000 + 222
+    DNS_LOCAL_IP6 = 10000 + 223
+    LOGIN_OPTIONS = 10000 + 224
+    SSL_ENABLE_NPN = 0 + 225
+    SSL_ENABLE_ALPN = 0 + 226
+    EXPECT_100_TIMEOUT_MS = 0 + 227
+    PROXYHEADER = 10000 + 228
+    HEADEROPT = 0 + 229
+    PINNEDPUBLICKEY = 10000 + 230
+    UNIX_SOCKET_PATH = 10000 + 231
+    SSL_VERIFYSTATUS = 0 + 232
+    SSL_FALSESTART = 0 + 233
+    PATH_AS_IS = 0 + 234
+    PROXY_SERVICE_NAME = 10000 + 235
+    SERVICE_NAME = 10000 + 236
+    PIPEWAIT = 0 + 237
+    DEFAULT_PROTOCOL = 10000 + 238
+    STREAM_WEIGHT = 0 + 239
+    STREAM_DEPENDS = 10000 + 240
+    STREAM_DEPENDS_E = 10000 + 241
+    TFTP_NO_OPTIONS = 0 + 242
+    CONNECT_TO = 10000 + 243
+    TCP_FASTOPEN = 0 + 244
+    KEEP_SENDING_ON_ERROR = 0 + 245
+    PROXY_CAINFO = 10000 + 246
+    PROXY_CAPATH = 10000 + 247
+    PROXY_SSL_VERIFYPEER = 0 + 248
+    PROXY_SSL_VERIFYHOST = 0 + 249
+    PROXY_SSLVERSION = 0 + 250
+    PROXY_TLSAUTH_USERNAME = 10000 + 251
+    PROXY_TLSAUTH_PASSWORD = 10000 + 252
+    PROXY_TLSAUTH_TYPE = 10000 + 253
+    PROXY_SSLCERT = 10000 + 254
+    PROXY_SSLCERTTYPE = 10000 + 255
+    PROXY_SSLKEY = 10000 + 256
+    PROXY_SSLKEYTYPE = 10000 + 257
+    PROXY_KEYPASSWD = 10000 + 258
+    PROXY_SSL_CIPHER_LIST = 10000 + 259
+    PROXY_CRLFILE = 10000 + 260
+    PROXY_SSL_OPTIONS = 0 + 261
+    PRE_PROXY = 10000 + 262
+    PROXY_PINNEDPUBLICKEY = 10000 + 263
+    ABSTRACT_UNIX_SOCKET = 10000 + 264
+    SUPPRESS_CONNECT_HEADERS = 0 + 265
+    REQUEST_TARGET = 10000 + 266
+    SOCKS5_AUTH = 0 + 267
+    SSH_COMPRESSION = 0 + 268
+    MIMEPOST = 10000 + 269
+    TIMEVALUE_LARGE = 30000 + 270
+    HAPPY_EYEBALLS_TIMEOUT_MS = 0 + 271
+    RESOLVER_START_FUNCTION = 20000 + 272
+    RESOLVER_START_DATA = 10000 + 273
+    HAPROXYPROTOCOL = 0 + 274
+    DNS_SHUFFLE_ADDRESSES = 0 + 275
+    TLS13_CIPHERS = 10000 + 276
+    PROXY_TLS13_CIPHERS = 10000 + 277
+    DISALLOW_USERNAME_IN_URL = 0 + 278
+    DOH_URL = 10000 + 279
+    UPLOAD_BUFFERSIZE = 0 + 280
+    UPKEEP_INTERVAL_MS = 0 + 281
+    CURLU = 10000 + 282
+    TRAILERFUNCTION = 20000 + 283
+    TRAILERDATA = 10000 + 284
+    HTTP09_ALLOWED = 0 + 285
+    ALTSVC_CTRL = 0 + 286
+    ALTSVC = 10000 + 287
+    MAXAGE_CONN = 0 + 288
+    SASL_AUTHZID = 10000 + 289
+    MAIL_RCPT_ALLOWFAILS = 0 + 290
+    SSLCERT_BLOB = 40000 + 291
+    SSLKEY_BLOB = 40000 + 292
+    PROXY_SSLCERT_BLOB = 40000 + 293
+    PROXY_SSLKEY_BLOB = 40000 + 294
+    ISSUERCERT_BLOB = 40000 + 295
+    PROXY_ISSUERCERT = 10000 + 296
+    PROXY_ISSUERCERT_BLOB = 40000 + 297
+    SSL_EC_CURVES = 10000 + 298
+    HSTS_CTRL = 0 + 299
+    HSTS = 10000 + 300
+    HSTSREADFUNCTION = 20000 + 301
+    HSTSREADDATA = 10000 + 302
+    HSTSWRITEFUNCTION = 20000 + 303
+    HSTSWRITEDATA = 10000 + 304
+    AWS_SIGV4 = 10000 + 305
+    DOH_SSL_VERIFYPEER = 0 + 306
+    DOH_SSL_VERIFYHOST = 0 + 307
+    DOH_SSL_VERIFYSTATUS = 0 + 308
+    CAINFO_BLOB = 40000 + 309
+    PROXY_CAINFO_BLOB = 40000 + 310
+    SSH_HOST_PUBLIC_KEY_SHA256 = 10000 + 311
+    PREREQFUNCTION = 20000 + 312
+    PREREQDATA = 10000 + 313
+    MAXLIFETIME_CONN = 0 + 314
+    MIME_OPTIONS = 0 + 315
+    SSH_HOSTKEYFUNCTION = 20000 + 316
+    SSH_HOSTKEYDATA = 10000 + 317
+    PROTOCOLS_STR = 10000 + 318
+    REDIR_PROTOCOLS_STR = 10000 + 319
+    WS_OPTIONS = 0 + 320
+    CA_CACHE_TIMEOUT = 0 + 321
+    QUICK_EXIT = 0 + 322
+    HAPROXY_CLIENT_IP = 10000 + 323
+    SERVER_RESPONSE_TIMEOUT_MS = 0 + 324
+    ECH = 10000 + 325
+    TCP_KEEPCNT = 0 + 326
+    UPLOAD_FLAGS = 0 + 327
+    SSL_SIGNATURE_ALGORITHMS = 10000 + 328
+    HTTPBASEHEADER = 10000 + 1000
+    SSL_SIG_HASH_ALGS = 10000 + 1001
+    SSL_ENABLE_ALPS = 0 + 1002
+    SSL_CERT_COMPRESSION = 10000 + 1003
+    SSL_ENABLE_TICKET = 0 + 1004
+    HTTP2_PSEUDO_HEADERS_ORDER = 10000 + 1005
+    HTTP2_SETTINGS = 10000 + 1006
+    SSL_PERMUTE_EXTENSIONS = 0 + 1007
+    HTTP2_WINDOW_UPDATE = 0 + 1008
+    HTTP2_STREAMS = 10000 + 1010
+    TLS_GREASE = 0 + 1011
+    TLS_EXTENSION_ORDER = 10000 + 1012
+    STREAM_EXCLUSIVE = 0 + 1013
+    TLS_KEY_USAGE_NO_CHECK = 0 + 1014
+    TLS_SIGNED_CERT_TIMESTAMPS = 0 + 1015
+    TLS_STATUS_REQUEST = 0 + 1016
+    TLS_DELEGATED_CREDENTIALS = 10000 + 1017
+    TLS_RECORD_SIZE_LIMIT = 0 + 1018
+    TLS_KEY_SHARES_LIMIT = 0 + 1019
+    TLS_USE_NEW_ALPS_CODEPOINT = 0 + 1020
+    HTTP2_NO_PRIORITY = 0 + 1021
+    PROXY_CREDENTIAL_NO_REUSE = 0 + 1022
+
+    if locals().get("WRITEDATA"):
+        FILE = locals().get("WRITEDATA")
+    if locals().get("READDATA"):
+        INFILE = locals().get("READDATA")
+    if locals().get("HEADERDATA"):
+        WRITEHEADER = locals().get("HEADERDATA")
+
+
+class CurlInfo(IntEnum):
+    """``CURLINFO_`` constancs extracted from libcurl,
+    see: https://curl.se/libcurl/c/curl_easy_getinfo.html"""
+
+    TEXT = 0
+    EFFECTIVE_URL = 0x100000 + 1
+    RESPONSE_CODE = 0x200000 + 2
+    TOTAL_TIME = 0x300000 + 3
+    NAMELOOKUP_TIME = 0x300000 + 4
+    CONNECT_TIME = 0x300000 + 5
+    PRETRANSFER_TIME = 0x300000 + 6
+    SIZE_UPLOAD_T = 0x600000 + 7
+    SIZE_DOWNLOAD_T = 0x600000 + 8
+    SPEED_DOWNLOAD_T = 0x600000 + 9
+    SPEED_UPLOAD_T = 0x600000 + 10
+    HEADER_SIZE = 0x200000 + 11
+    REQUEST_SIZE = 0x200000 + 12
+    SSL_VERIFYRESULT = 0x200000 + 13
+    FILETIME = 0x200000 + 14
+    FILETIME_T = 0x600000 + 14
+    CONTENT_LENGTH_DOWNLOAD_T = 0x600000 + 15
+    CONTENT_LENGTH_UPLOAD_T = 0x600000 + 16
+    STARTTRANSFER_TIME = 0x300000 + 17
+    CONTENT_TYPE = 0x100000 + 18
+    REDIRECT_TIME = 0x300000 + 19
+    REDIRECT_COUNT = 0x200000 + 20
+    PRIVATE = 0x100000 + 21
+    HTTP_CONNECTCODE = 0x200000 + 22
+    HTTPAUTH_AVAIL = 0x200000 + 23
+    PROXYAUTH_AVAIL = 0x200000 + 24
+    OS_ERRNO = 0x200000 + 25
+    NUM_CONNECTS = 0x200000 + 26
+    SSL_ENGINES = 0x400000 + 27
+    COOKIELIST = 0x400000 + 28
+    FTP_ENTRY_PATH = 0x100000 + 30
+    REDIRECT_URL = 0x100000 + 31
+    PRIMARY_IP = 0x100000 + 32
+    APPCONNECT_TIME = 0x300000 + 33
+    CERTINFO = 0x400000 + 34
+    CONDITION_UNMET = 0x200000 + 35
+    RTSP_SESSION_ID = 0x100000 + 36
+    RTSP_CLIENT_CSEQ = 0x200000 + 37
+    RTSP_SERVER_CSEQ = 0x200000 + 38
+    RTSP_CSEQ_RECV = 0x200000 + 39
+    PRIMARY_PORT = 0x200000 + 40
+    LOCAL_IP = 0x100000 + 41
+    LOCAL_PORT = 0x200000 + 42
+    ACTIVESOCKET = 0x500000 + 44
+    TLS_SSL_PTR = 0x400000 + 45
+    HTTP_VERSION = 0x200000 + 46
+    PROXY_SSL_VERIFYRESULT = 0x200000 + 47
+    SCHEME = 0x100000 + 49
+    TOTAL_TIME_T = 0x600000 + 50
+    NAMELOOKUP_TIME_T = 0x600000 + 51
+    CONNECT_TIME_T = 0x600000 + 52
+    PRETRANSFER_TIME_T = 0x600000 + 53
+    STARTTRANSFER_TIME_T = 0x600000 + 54
+    REDIRECT_TIME_T = 0x600000 + 55
+    APPCONNECT_TIME_T = 0x600000 + 56
+    RETRY_AFTER = 0x600000 + 57
+    EFFECTIVE_METHOD = 0x100000 + 58
+    PROXY_ERROR = 0x200000 + 59
+    REFERER = 0x100000 + 60
+    CAINFO = 0x100000 + 61
+    CAPATH = 0x100000 + 62
+    XFER_ID = 0x600000 + 63
+    CONN_ID = 0x600000 + 64
+    QUEUE_TIME_T = 0x600000 + 65
+    USED_PROXY = 0x200000 + 66
+    POSTTRANSFER_TIME_T = 0x600000 + 67
+    EARLYDATA_SENT_T = 0x600000 + 68
+    HTTPAUTH_USED = 0x200000 + 69
+    PROXYAUTH_USED = 0x200000 + 70
+    LASTONE = 70
+
+    if locals().get("RESPONSE_CODE"):
+        HTTP_CODE = locals().get("RESPONSE_CODE")
+
+
+class CurlMOpt(IntEnum):
+    """``CURLMOPT_`` constancs extracted from libcurl,
+    see: https://curl.se/libcurl/c/curl_multi_setopt.html"""
+
+    SOCKETFUNCTION = 20000 + 1
+    SOCKETDATA = 10000 + 2
+    PIPELINING = 0 + 3
+    TIMERFUNCTION = 20000 + 4
+    TIMERDATA = 10000 + 5
+    MAXCONNECTS = 0 + 6
+    MAX_HOST_CONNECTIONS = 0 + 7
+    MAX_PIPELINE_LENGTH = 0 + 8
+    CONTENT_LENGTH_PENALTY_SIZE = 30000 + 9
+    CHUNK_LENGTH_PENALTY_SIZE = 30000 + 10
+    PIPELINING_SITE_BL = 10000 + 11
+    PIPELINING_SERVER_BL = 10000 + 12
+    MAX_TOTAL_CONNECTIONS = 0 + 13
+    PUSHFUNCTION = 20000 + 14
+    PUSHDATA = 10000 + 15
+    MAX_CONCURRENT_STREAMS = 0 + 16
+
+
+class CurlECode(IntEnum):
+    """``CURLECODE_`` constancs extracted from libcurl,
+    see: https://curl.se/libcurl/c/libcurl-errors.html"""
+
+    OK = 0
+    UNSUPPORTED_PROTOCOL = 1
+    FAILED_INIT = 2
+    URL_MALFORMAT = 3
+    NOT_BUILT_IN = 4
+    COULDNT_RESOLVE_PROXY = 5
+    COULDNT_RESOLVE_HOST = 6
+    COULDNT_CONNECT = 7
+    WEIRD_SERVER_REPLY = 8
+    REMOTE_ACCESS_DENIED = 9
+    FTP_ACCEPT_FAILED = 10
+    FTP_WEIRD_PASS_REPLY = 11
+    FTP_ACCEPT_TIMEOUT = 12
+    FTP_WEIRD_PASV_REPLY = 13
+    FTP_WEIRD_227_FORMAT = 14
+    FTP_CANT_GET_HOST = 15
+    HTTP2 = 16
+    FTP_COULDNT_SET_TYPE = 17
+    PARTIAL_FILE = 18
+    FTP_COULDNT_RETR_FILE = 19
+    OBSOLETE20 = 20
+    QUOTE_ERROR = 21
+    HTTP_RETURNED_ERROR = 22
+    WRITE_ERROR = 23
+    OBSOLETE24 = 24
+    UPLOAD_FAILED = 25
+    READ_ERROR = 26
+    OUT_OF_MEMORY = 27
+    OPERATION_TIMEDOUT = 28
+    OBSOLETE29 = 29
+    FTP_PORT_FAILED = 30
+    FTP_COULDNT_USE_REST = 31
+    OBSOLETE32 = 32
+    RANGE_ERROR = 33
+    OBSOLETE34 = 34
+    SSL_CONNECT_ERROR = 35
+    BAD_DOWNLOAD_RESUME = 36
+    FILE_COULDNT_READ_FILE = 37
+    LDAP_CANNOT_BIND = 38
+    LDAP_SEARCH_FAILED = 39
+    OBSOLETE40 = 40
+    OBSOLETE41 = 41
+    ABORTED_BY_CALLBACK = 42
+    BAD_FUNCTION_ARGUMENT = 43
+    OBSOLETE44 = 44
+    INTERFACE_FAILED = 45
+    OBSOLETE46 = 46
+    TOO_MANY_REDIRECTS = 47
+    UNKNOWN_OPTION = 48
+    SETOPT_OPTION_SYNTAX = 49
+    OBSOLETE50 = 50
+    OBSOLETE51 = 51
+    GOT_NOTHING = 52
+    SSL_ENGINE_NOTFOUND = 53
+    SSL_ENGINE_SETFAILED = 54
+    SEND_ERROR = 55
+    RECV_ERROR = 56
+    OBSOLETE57 = 57
+    SSL_CERTPROBLEM = 58
+    SSL_CIPHER = 59
+    PEER_FAILED_VERIFICATION = 60
+    BAD_CONTENT_ENCODING = 61
+    OBSOLETE62 = 62
+    FILESIZE_EXCEEDED = 63
+    USE_SSL_FAILED = 64
+    SEND_FAIL_REWIND = 65
+    SSL_ENGINE_INITFAILED = 66
+    LOGIN_DENIED = 67
+    TFTP_NOTFOUND = 68
+    TFTP_PERM = 69
+    REMOTE_DISK_FULL = 70
+    TFTP_ILLEGAL = 71
+    TFTP_UNKNOWNID = 72
+    REMOTE_FILE_EXISTS = 73
+    TFTP_NOSUCHUSER = 74
+    OBSOLETE75 = 75
+    OBSOLETE76 = 76
+    SSL_CACERT_BADFILE = 77
+    REMOTE_FILE_NOT_FOUND = 78
+    SSH = 79
+    SSL_SHUTDOWN_FAILED = 80
+    AGAIN = 81
+    SSL_CRL_BADFILE = 82
+    SSL_ISSUER_ERROR = 83
+    FTP_PRET_FAILED = 84
+    RTSP_CSEQ_ERROR = 85
+    RTSP_SESSION_ERROR = 86
+    FTP_BAD_FILE_LIST = 87
+    CHUNK_FAILED = 88
+    NO_CONNECTION_AVAILABLE = 89
+    SSL_PINNEDPUBKEYNOTMATCH = 90
+    SSL_INVALIDCERTSTATUS = 91
+    HTTP2_STREAM = 92
+    RECURSIVE_API_CALL = 93
+    AUTH_ERROR = 94
+    HTTP3 = 95
+    QUIC_CONNECT_ERROR = 96
+    PROXY = 97
+    SSL_CLIENTCERT = 98
+    UNRECOVERABLE_POLL = 99
+    TOO_LARGE = 100
+    ECH_REQUIRED = 101
+    RESERVED115115 = 102
+    RESERVED116116 = 103
+    RESERVED117117 = 104
+    RESERVED118118 = 105
+    RESERVED119119 = 106
+    RESERVED120120 = 107
+    RESERVED121121 = 108
+    RESERVED122122 = 109
+    RESERVED123123 = 110
+    RESERVED124124 = 111
+    RESERVED125125 = 112
+    RESERVED126126 = 113
+
+
+class CurlHttpVersion(IntEnum):
+    """``CURL_HTTP_VERSION`` constants from libcurl, see comments for details."""
+
+    NONE = 0
+    V1_0 = 1  # please use HTTP 1.0 in the request */
+    V1_1 = 2  # please use HTTP 1.1 in the request */
+    V2_0 = 3  # please use HTTP 2 in the request */
+    V2TLS = 4  # use version 2 for HTTPS, version 1.1 for HTTP */
+    V2_PRIOR_KNOWLEDGE = 5  # please use HTTP 2 without HTTP/1.1 Upgrade */
+    V3 = 30  # Makes use of explicit HTTP/3 with fallback.
+    V3ONLY = 31  # No fallback
+
+
+class CurlWsFlag(IntEnum):
+    """``CURL_WS_FLAG`` constants from libcurl, see comments for details."""
+
+    TEXT = 1 << 0
+    BINARY = 1 << 1
+    CONT = 1 << 2
+    CLOSE = 1 << 3
+    PING = 1 << 4
+    OFFSET = 1 << 5
+
+
+class CurlSslVersion(IntEnum):
+    """``CURL_SSLVERSION`` constants from libcurl, see comments for details."""
+
+    DEFAULT = 0
+    TLSv1 = 1
+    SSLv2 = 2
+    SSLv3 = 3
+    TLSv1_0 = 4
+    TLSv1_1 = 5
+    TLSv1_2 = 6
+    TLSv1_3 = 7
+    MAX_DEFAULT = 1 << 16
+
+
+class CurlIpResolve(IntEnum):
+    """``CURL_IPRESOLVE`` constants from libcurl, see comments for details."""
+
+    WHATEVER = 0  # default, uses addresses to all IP versions that your system allows
+    V4 = 1  # uses only IPv4 addresses/connections
+    V6 = 2  # uses only IPv6 addresses/connections

.venv/lib/python3.12/site-packages/curl_cffi/curl.py

@@ -0,0 +1,691 @@
+from __future__ import annotations
+
+import re
+import locale
+import struct
+import sys
+import warnings
+from http.cookies import SimpleCookie
+from pathlib import Path
+from typing import TYPE_CHECKING, Any, Literal, Optional, Union, cast
+
+import certifi
+
+from ._wrapper import ffi, lib
+from .const import CurlECode, CurlHttpVersion, CurlInfo, CurlOpt, CurlWsFlag
+from .utils import CurlCffiWarning
+
+DEFAULT_CACERT = certifi.where()
+REASON_PHRASE_RE = re.compile(rb"HTTP/\d\.\d [0-9]{3} (.*)")
+STATUS_LINE_RE = re.compile(rb"HTTP/(\d\.\d) ([0-9]{3}) (.*)")
+
+if TYPE_CHECKING:
+
+    class CurlWsFrame:
+        age: int
+        flags: int
+        offset: int
+        bytesleft: int
+        len: int
+
+
+class CurlError(Exception):
+    """Base exception for curl_cffi package"""
+
+    def __init__(self, msg, code: Union[CurlECode, Literal[0]] = 0, *args, **kwargs):
+        super().__init__(msg, *args, **kwargs)
+        self.code: Union[CurlECode, Literal[0]] = code
+
+
+CURLINFO_TEXT = 0
+CURLINFO_HEADER_IN = 1
+CURLINFO_HEADER_OUT = 2
+CURLINFO_DATA_IN = 3
+CURLINFO_DATA_OUT = 4
+CURLINFO_SSL_DATA_IN = 5
+CURLINFO_SSL_DATA_OUT = 6
+
+CURL_WRITEFUNC_PAUSE = 0x10000001
+CURL_WRITEFUNC_ERROR = 0xFFFFFFFF
+
+
+@ffi.def_extern()
+def debug_function(curl, type_: int, data, size: int, clientp) -> int:
+    """ffi callback for curl debug info"""
+    callback = ffi.from_handle(clientp)
+    text = ffi.buffer(data, size)[:]
+    callback(type_, text)
+    return 0
+
+
+def bytes_to_hex(b: bytes, uppercase: bool = False) -> str:
+    """
+    Convert a bytes object to a space-separated hex string, e.g. "0a ff 3c".
+    If uppercase=True, letters will be A–F instead of a–f.
+    """
+    fmt = "{:02X}" if uppercase else "{:02x}"
+    return " ".join(fmt.format(byte) for byte in b)
+
+
+def debug_function_default(type_: int, data: bytes) -> None:
+    PREFIXES = {
+        CURLINFO_TEXT: "*",
+        CURLINFO_HEADER_IN: "<",
+        CURLINFO_HEADER_OUT: ">",
+        CURLINFO_DATA_IN: "< DATA",
+        CURLINFO_DATA_OUT: "> DATA",
+        CURLINFO_SSL_DATA_IN: "< SSL",
+        CURLINFO_SSL_DATA_OUT: "> SSL",
+    }
+    MAX_SHOW_BYTES = 40
+    prefix = PREFIXES.get(type_, "*")
+
+    # always show ssl data in binary format
+    if type_ in (CURLINFO_SSL_DATA_IN, CURLINFO_SSL_DATA_OUT):
+        hex_str = bytes_to_hex(data[:MAX_SHOW_BYTES])
+        postfix = "" if len(data) <= MAX_SHOW_BYTES else "..."
+        sys.stderr.write(f"{prefix} [{len(data)} bytes]: {hex_str}{postfix}\n")
+    else:
+        try:
+            text = data.decode("utf-8")
+            sys.stderr.write(f"{prefix} {text}")
+            if type_ not in (CURLINFO_TEXT, CURLINFO_HEADER_IN, CURLINFO_HEADER_OUT):
+                sys.stderr.write("\n")
+        except UnicodeDecodeError:
+            # Fallback to hex representation of first MAX_SHOW_BYTES bytes
+            hex_str = bytes_to_hex(data[:MAX_SHOW_BYTES])
+            postfix = "" if len(data) <= MAX_SHOW_BYTES else "..."
+            sys.stderr.write(f"{prefix} [{len(data)} bytes]: {hex_str}{postfix}\n")
+
+
+@ffi.def_extern()
+def buffer_callback(ptr, size, nmemb, userdata):
+    """ffi callback for curl write function, directly writes to a buffer"""
+    # assert size == 1
+    buffer = ffi.from_handle(userdata)
+    buffer.write(ffi.buffer(ptr, nmemb)[:])
+    return nmemb * size
+
+
+def ensure_int(s):
+    if not s:
+        return 0
+    return int(s)
+
+
+@ffi.def_extern()
+def write_callback(ptr, size, nmemb, userdata):
+    """ffi callback for curl write function, calls the callback python function"""
+    # although similar enough to the function above, kept here for performance reasons
+    callback = ffi.from_handle(userdata)
+    wrote = callback(ffi.buffer(ptr, nmemb)[:])
+    wrote = ensure_int(wrote)
+    if wrote == CURL_WRITEFUNC_PAUSE or wrote == CURL_WRITEFUNC_ERROR:  # noqa: SIM109
+        return wrote
+    # should make this an exception in future versions
+    if wrote != nmemb * size:
+        warnings.warn("Wrote bytes != received bytes.", CurlCffiWarning, stacklevel=2)
+    return nmemb * size
+
+
+# Credits: @alexio777 on https://github.com/lexiforest/curl_cffi/issues/4
+def slist_to_list(head) -> list[bytes]:
+    """Converts curl slist to a python list."""
+    result = []
+    ptr = head
+    while ptr:
+        result.append(ffi.string(ptr.data))
+        ptr = ptr.next
+    lib.curl_slist_free_all(head)
+    return result
+
+
+class Curl:
+    """
+    Wrapper for ``curl_easy_*`` functions of libcurl.
+    """
+
+    _WS_RECV_BUFFER_SIZE = 128 * 1024  # 128 kB
+
+    def __init__(self, cacert: str = "", debug: bool = False, handle=None) -> None:
+        """
+        Parameters:
+            cacert: CA cert path to use, by default, certs from ``certifi`` are used.
+            debug: whether to show curl debug messages.
+            handle: a curl handle instance from ``curl_easy_init``.
+        """
+        self._curl = handle if handle else lib.curl_easy_init()
+        self._headers = ffi.NULL
+        self._proxy_headers = ffi.NULL
+        self._resolve = ffi.NULL
+        self._cacert = cacert or DEFAULT_CACERT
+        self._is_cert_set = False
+        self._write_handle: Any = None
+        self._header_handle: Any = None
+        self._debug_handle: Any = None
+        self._body_handle: Any = None
+        # TODO: use CURL_ERROR_SIZE
+        self._error_buffer = ffi.new("char[]", 256)
+        self._debug = debug
+        self._set_error_buffer()
+
+        # Pre-allocated CFFI objects for WebSocket performance
+        self._ws_recv_buffer = ffi.new("char[]", self._WS_RECV_BUFFER_SIZE)
+        self._ws_recv_n_recv = ffi.new("size_t *")
+        self._ws_recv_p_frame = ffi.new("struct curl_ws_frame **")
+        self._ws_send_n_sent = ffi.new("size_t *")
+
+    def _set_error_buffer(self) -> None:
+        ret = lib._curl_easy_setopt(self._curl, CurlOpt.ERRORBUFFER, self._error_buffer)
+        if ret != 0:
+            warnings.warn("Failed to set error buffer", CurlCffiWarning, stacklevel=2)
+        if self._debug:
+            self.debug()
+
+    def debug(self) -> None:
+        """Set debug to True"""
+        self.setopt(CurlOpt.VERBOSE, 1)
+        self.setopt(CurlOpt.DEBUGFUNCTION, True)
+
+    def __del__(self) -> None:
+        self.close()
+
+    def _check_error(self, errcode: int, *args: Any) -> None:
+        if errcode == 0:
+            return
+
+        error = self._get_error(errcode, *args)
+        if error is not None:
+            raise error
+
+    def _get_error(self, errcode: int, *args: Any):
+        if errcode != 0:
+            errmsg = ffi.string(self._error_buffer).decode(errors="backslashreplace")
+            action = " ".join([str(a) for a in args])
+            return CurlError(
+                f"Failed to {action}, curl: ({errcode}) {errmsg}. "
+                "See https://curl.se/libcurl/c/libcurl-errors.html first for more "
+                "details.",
+                code=cast(CurlECode, errcode),
+            )
+
+    def setopt(self, option: CurlOpt, value: Any) -> int:
+        """Wrapper for ``curl_easy_setopt``.
+
+        Args:
+            option: option to set, using constants from CurlOpt enum
+            value: value to set, strings will be handled automatically
+
+        Returns:
+            0 if no error, see ``CurlECode``.
+        """
+        if self._curl is None:
+            return 0  # silently ignore if curl handle is None
+        input_option = {
+            # this should be int in curl, but cffi requires pointer for void*
+            # it will be convert back in the glue c code.
+            0: "long*",
+            10000: "char*",
+            20000: "void*",
+            30000: "int64_t*",  # offset type
+            40000: "void*",  # blob type
+        }
+        # print("option", option, "value", value)
+
+        # Convert value
+        value_type = input_option.get((option // 10000) * 10000)
+        if value_type == "long*" or value_type == "int64_t*":
+            c_value = ffi.new(value_type, value)
+        elif option == CurlOpt.WRITEDATA:
+            c_value = ffi.new_handle(value)
+            self._write_handle = c_value
+            lib._curl_easy_setopt(
+                self._curl, CurlOpt.WRITEFUNCTION, lib.buffer_callback
+            )
+        elif option == CurlOpt.HEADERDATA:
+            c_value = ffi.new_handle(value)
+            self._header_handle = c_value
+            lib._curl_easy_setopt(
+                self._curl, CurlOpt.HEADERFUNCTION, lib.buffer_callback
+            )
+        elif option == CurlOpt.WRITEFUNCTION:
+            c_value = ffi.new_handle(value)
+            self._write_handle = c_value
+            lib._curl_easy_setopt(self._curl, CurlOpt.WRITEFUNCTION, lib.write_callback)
+            option = CurlOpt.WRITEDATA
+        elif option == CurlOpt.HEADERFUNCTION:
+            c_value = ffi.new_handle(value)
+            self._header_handle = c_value
+            lib._curl_easy_setopt(
+                self._curl, CurlOpt.HEADERFUNCTION, lib.write_callback
+            )
+            option = CurlOpt.HEADERDATA
+        elif option == CurlOpt.DEBUGFUNCTION:
+            if value is True:
+                value = debug_function_default
+            c_value = ffi.new_handle(value)
+            self._debug_handle = c_value
+            lib._curl_easy_setopt(self._curl, CurlOpt.DEBUGFUNCTION, lib.debug_function)
+            option = CurlOpt.DEBUGDATA
+        elif value_type == "char*":
+            if isinstance(value, str):
+                # Windows/libcurl expects ANSI code page for file paths (char*).
+                # Non-ASCII paths encoded as UTF-8 can trigger ErrCode 77.
+                # Encode file-path-like options using the system encoding on Windows.
+                filepath_opts = {
+                    CurlOpt.CAINFO,
+                    CurlOpt.CAPATH,
+                    CurlOpt.PROXY_CAINFO,
+                    CurlOpt.PROXY_CAPATH,
+                    CurlOpt.SSLCERT,
+                    CurlOpt.SSLKEY,
+                    CurlOpt.CRLFILE,
+                    CurlOpt.ISSUERCERT,
+                    CurlOpt.SSH_PUBLIC_KEYFILE,
+                    CurlOpt.SSH_PRIVATE_KEYFILE,
+                    CurlOpt.COOKIEFILE,
+                    CurlOpt.COOKIEJAR,
+                    CurlOpt.NETRC_FILE,
+                    CurlOpt.UNIX_SOCKET_PATH,
+                }
+                if sys.platform.startswith("win") and option in filepath_opts:
+                    # Use the process ANSI code page to match what CRT fopen expects.
+                    enc = locale.getpreferredencoding(False)
+                    c_value = value.encode(enc, errors="strict")
+                else:
+                    c_value = value.encode()
+            else:
+                c_value = value
+            # Must keep a reference, otherwise may be GCed.
+            if option == CurlOpt.POSTFIELDS:
+                self._body_handle = c_value
+        else:
+            raise NotImplementedError(f"Option unsupported: {option}")
+
+        if option == CurlOpt.HTTPHEADER:
+            for header in value:
+                self._headers = lib.curl_slist_append(self._headers, header)
+            ret = lib._curl_easy_setopt(self._curl, option, self._headers)
+        elif option == CurlOpt.PROXYHEADER:
+            for proxy_header in value:
+                self._proxy_headers = lib.curl_slist_append(
+                    self._proxy_headers, proxy_header
+                )
+            ret = lib._curl_easy_setopt(self._curl, option, self._proxy_headers)
+        elif option == CurlOpt.RESOLVE:
+            for resolve in value:
+                if isinstance(resolve, str):
+                    resolve = resolve.encode()
+                self._resolve = lib.curl_slist_append(self._resolve, resolve)
+            ret = lib._curl_easy_setopt(self._curl, option, self._resolve)
+        else:
+            ret = lib._curl_easy_setopt(self._curl, option, c_value)
+        self._check_error(ret, "setopt", option, value)
+
+        if option == CurlOpt.CAINFO:
+            self._is_cert_set = True
+
+        return ret
+
+    def getinfo(self, option: CurlInfo) -> Union[bytes, int, float, list]:
+        """Wrapper for ``curl_easy_getinfo``. Gets information in response after
+        curl.perform.
+
+        Parameters:
+            option: option to get info of, using constants from ``CurlInfo`` enum
+
+        Returns:
+            value retrieved from last perform.
+        """
+        ret_option = {
+            0x100000: "char**",
+            0x200000: "long*",
+            0x300000: "double*",
+            0x400000: "struct curl_slist **",
+            0x500000: "long*",
+            0x600000: "int64_t*",
+        }
+        ret_cast_option = {
+            0x100000: ffi.string,
+            0x200000: int,
+            0x300000: float,
+            0x400000: list,
+            0x500000: int,
+            0x600000: int,
+        }
+
+        option_type = option & 0xF00000
+
+        if self._curl is None:
+            if option_type == 0x100000:
+                return b""
+            return ret_cast_option[option_type]()
+
+        c_value = ffi.new(ret_option[option_type])
+        ret = lib.curl_easy_getinfo(self._curl, option, c_value)
+        self._check_error(ret, "getinfo", option)
+        # cookielist and ssl_engines starts with 0x400000, see also: const.py
+        if option_type == 0x400000:
+            return slist_to_list(c_value[0])
+        if c_value[0] == ffi.NULL:
+            return b""
+
+        return ret_cast_option[option_type](c_value[0])
+
+    def version(self) -> bytes:
+        """Get the underlying libcurl version."""
+        return ffi.string(lib.curl_version())
+
+    def impersonate(self, target: str, default_headers: bool = True) -> int:
+        """Set the browser type to impersonate.
+
+        Parameters:
+            target: browser to impersonate.
+            default_headers: whether to add default headers, like User-Agent.
+
+        Returns:
+            0 if no error.
+        """
+        if self._curl is None:
+            return 0  # silently ignore if curl handle is None
+        return lib.curl_easy_impersonate(
+            self._curl, target.encode(), int(default_headers)
+        )
+
+    def _ensure_cacert(self) -> None:
+        if not self._is_cert_set:
+            ret = self.setopt(CurlOpt.CAINFO, self._cacert)
+            self._check_error(ret, "set cacert")
+            ret = self.setopt(CurlOpt.PROXY_CAINFO, self._cacert)
+            self._check_error(ret, "set proxy cacert")
+
+    def perform(self, clear_headers: bool = True, clear_resolve: bool = True) -> None:
+        """Wrapper for ``curl_easy_perform``, performs a curl request.
+
+        Parameters:
+            clear_headers: clear header slist used in this perform
+            clear_resolve: clear resolve slist used in this perform
+
+        Raises:
+            CurlError: if the perform was not successful.
+        """
+        if self._curl is None:
+            raise CurlError("Cannot perform request on closed handle.")
+
+        # make sure we set a cacert store
+        self._ensure_cacert()
+
+        # here we go
+        ret = lib.curl_easy_perform(self._curl)
+
+        try:
+            self._check_error(ret, "perform")
+        finally:
+            # cleaning
+            self.clean_handles_and_buffers(clear_headers, clear_resolve)
+
+    def upkeep(self) -> int:
+        if self._curl is None:
+            return 0  # silently ignore if curl handle is None
+        return lib.curl_easy_upkeep(self._curl)
+
+    def clean_handles_and_buffers(
+        self, clear_headers: bool = True, clear_resolve: bool = True
+    ) -> None:
+        """Clean up handles and buffers after ``perform`` and ``close``,
+        called at the end of ``perform`` and ``close``."""
+        self._write_handle = None
+        self._header_handle = None
+        self._debug_handle = None
+        self._body_handle = None
+
+        if clear_resolve:
+            if self._resolve != ffi.NULL:
+                lib.curl_slist_free_all(self._resolve)
+            self._resolve = ffi.NULL
+
+        if clear_headers:
+            if self._headers != ffi.NULL:
+                lib.curl_slist_free_all(self._headers)
+            self._headers = ffi.NULL
+
+            if self._proxy_headers != ffi.NULL:
+                lib.curl_slist_free_all(self._proxy_headers)
+            self._proxy_headers = ffi.NULL
+
+    def duphandle(self) -> Curl:
+        """Wrapper for ``curl_easy_duphandle``.
+
+        This is not a full copy of entire curl object in python. For example, headers
+        handle is not copied, you have to set them again."""
+        if self._curl is None:
+            raise CurlError("Cannot duplicate closed handle.")
+        new_handle = lib.curl_easy_duphandle(self._curl)
+        c = Curl(cacert=self._cacert, debug=self._debug, handle=new_handle)
+        return c
+
+    def reset(self) -> None:
+        """Reset all curl options, wrapper for ``curl_easy_reset``."""
+        self._is_cert_set = False
+        if self._curl is not None:
+            lib.curl_easy_reset(self._curl)
+            self._set_error_buffer()
+        self._resolve = ffi.NULL
+
+    def parse_cookie_headers(self, headers: list[bytes]) -> SimpleCookie:
+        """Extract ``cookies.SimpleCookie`` from header lines.
+
+        Parameters:
+            headers: list of headers in bytes.
+
+        Returns:
+            A parsed cookies.SimpleCookie instance.
+        """
+        cookie: SimpleCookie = SimpleCookie()
+        for header in headers:
+            if header.lower().startswith(b"set-cookie: "):
+                cookie.load(header[12:].decode())  # len("set-cookie: ") == 12
+        return cookie
+
+    @staticmethod
+    def get_reason_phrase(status_line: bytes) -> bytes:
+        """Extract reason phrase, like ``OK``, ``Not Found`` from response status
+        line."""
+        m = REASON_PHRASE_RE.match(status_line)
+        return m.group(1) if m else b""
+
+    @staticmethod
+    def parse_status_line(status_line: bytes) -> tuple[CurlHttpVersion, int, bytes]:
+        """Parse status line.
+
+        Returns:
+            http_version, status_code, and reason phrase
+        """
+        m = STATUS_LINE_RE.match(status_line)
+        if not m:
+            return CurlHttpVersion.V1_0, 0, b""
+        if m.group(1) == "2.0":
+            http_version = CurlHttpVersion.V2_0
+        elif m.group(1) == "1.1":
+            http_version = CurlHttpVersion.V1_1
+        elif m.group(1) == "1.0":
+            http_version = CurlHttpVersion.V1_0
+        else:
+            http_version = CurlHttpVersion.NONE
+        status_code = int(m.group(2))
+        reason = m.group(3)
+
+        return http_version, status_code, reason
+
+    def close(self) -> None:
+        """Close and cleanup curl handle, wrapper for ``curl_easy_cleanup``."""
+        self.clean_handles_and_buffers()
+
+        if self._curl:
+            lib.curl_easy_cleanup(self._curl)
+            self._curl = None
+        ffi.release(self._error_buffer)
+
+        if self._ws_recv_buffer is not None:
+            ffi.release(self._ws_recv_buffer)
+            self._ws_recv_buffer = None
+
+    def ws_recv(self) -> tuple[bytes, CurlWsFrame]:
+        """Receive a frame from a websocket connection.
+
+        Returns:
+            a tuple of frame content and curl frame meta struct.
+
+        Raises:
+            CurlError: if failed.
+        """
+        if self._curl is None:
+            raise CurlError("Cannot receive websocket data on closed handle.")
+        ret = lib.curl_ws_recv(
+            self._curl,
+            self._ws_recv_buffer,
+            self._WS_RECV_BUFFER_SIZE,
+            self._ws_recv_n_recv,
+            self._ws_recv_p_frame,
+        )
+        self._check_error(ret, "WS_RECV")
+
+        # Frame meta explained: https://curl.se/libcurl/c/curl_ws_meta.html
+        frame = self._ws_recv_p_frame[0]
+        return ffi.buffer(self._ws_recv_buffer)[: self._ws_recv_n_recv[0]], frame
+
+    def ws_send(self, payload: bytes, flags: CurlWsFlag = CurlWsFlag.BINARY) -> int:
+        """Send data to a websocket connection.
+
+        Args:
+            payload: content to send.
+            flags: websocket flag to set for the frame, default: binary.
+
+        Returns:
+            0 if no error.
+
+        Raises:
+            CurlError: if failed.
+        """
+        if self._curl is None:
+            raise CurlError("Cannot send websocket data on closed handle.")
+
+        buffer = ffi.from_buffer(payload)
+        ret = lib.curl_ws_send(
+            self._curl, buffer, len(payload), self._ws_send_n_sent, 0, flags
+        )
+        self._check_error(ret, "WS_SEND")
+        return self._ws_send_n_sent[0]
+
+    def ws_close(self, code: int = 1000, message: bytes = b"") -> int:
+        """Close a websocket connection. Shorthand for :meth:`ws_send`
+        with close code and message. Note that to completely close the connection,
+        you must close the curl handle after this call with :meth:`close`.
+
+        Args:
+            code: close code.
+            message: close message.
+
+        Returns:
+            0 if no error.
+
+        Raises:
+            CurlError: if failed.
+        """
+        payload = struct.pack("!H", code) + message
+        return self.ws_send(payload, flags=CurlWsFlag.CLOSE)
+
+
+class CurlMime:
+    """Wrapper for the ``curl_mime_`` API."""
+
+    def __init__(self, curl: Optional[Curl] = None):
+        """
+        Args:
+            curl: Curl instance to use.
+        """
+        self._curl = curl if curl else Curl()
+        self._form = lib.curl_mime_init(self._curl._curl)
+
+    def addpart(
+        self,
+        name: str,
+        *,
+        content_type: Optional[str] = None,
+        filename: Optional[str] = None,
+        local_path: Optional[Union[str, bytes, Path]] = None,
+        data: Optional[bytes] = None,
+    ) -> None:
+        """Add a mime part for a mutlipart html form.
+
+        Note: You can only use either local_path or data, not both.
+
+        Args:
+            name: name of the field.
+            content_type: content_type for the field. for example: ``image/png``.
+            filename: filename for the server.
+            local_path: file to upload on local disk.
+            data: file content to upload.
+        """
+        part = lib.curl_mime_addpart(self._form)
+
+        ret = lib.curl_mime_name(part, name.encode())
+        if ret != 0:
+            raise CurlError("Add field failed.")
+
+        # mime type
+        if content_type is not None:
+            ret = lib.curl_mime_type(part, content_type.encode())
+            if ret != 0:
+                raise CurlError("Add field failed.")
+
+        # remote file name
+        if filename is not None:
+            ret = lib.curl_mime_filename(part, filename.encode())
+            if ret != 0:
+                raise CurlError("Add field failed.")
+
+        if local_path and data:
+            raise CurlError("Can not use local_path and data at the same time.")
+
+        # this is a filename
+        if local_path is not None:
+            if isinstance(local_path, Path):
+                local_path_str = str(local_path)
+            elif isinstance(local_path, bytes):
+                local_path_str = local_path.decode()
+            else:
+                local_path_str = local_path
+
+            if not Path(local_path_str).exists():
+                raise FileNotFoundError(f"File not found at {local_path_str}")
+            ret = lib.curl_mime_filedata(part, local_path_str.encode())
+            if ret != 0:
+                raise CurlError("Add field failed.")
+
+        if data is not None:
+            if not isinstance(data, bytes):
+                data = str(data).encode()
+            ret = lib.curl_mime_data(part, data, len(data))
+
+    @classmethod
+    def from_list(cls, files: list[dict]):
+        """Create a multipart instance from a list of dict, for keys, see ``addpart``"""
+        form = cls()
+        for file in files:
+            form.addpart(**file)
+        return form
+
+    def attach(self, curl: Optional[Curl] = None) -> None:
+        """Attach the mime instance to a curl instance."""
+        c = curl if curl else self._curl
+        c.setopt(CurlOpt.MIMEPOST, self._form)
+
+    def close(self) -> None:
+        """Close the mime instance and underlying files. This method must be called
+        after ``perform`` or ``request``."""
+        lib.curl_mime_free(self._form)
+        self._form = ffi.NULL
+
+    def __del__(self) -> None:
+        self.close()

.venv/lib/python3.12/site-packages/curl_cffi/py.typed

@@ -0,0 +1 @@
+# Marker file for PEP 561.