Generates pyo3_config.txt

pyo3-config

#!/usr/bin/env python

import sys
import os
import configparser
import sysconfig

# Function to detect the library directory
def detect_lib_dir():
    libdir = sysconfig.get_config_var('LIBDIR')
    if libdir and os.path.exists(libdir):
        return libdir
    return os.path.dirname(sys.executable)

# Function to detect the library name
def detect_lib_name():
    libname = sysconfig.get_config_var('LDLIBRARY')
    if libname:
        # Strip the 'lib' prefix and the extension
        return os.path.splitext(libname)[0][3:]
    return 'python' + sys.version[:3].replace('.', '')

# Extract major.minor version
def get_major_minor_version():
    return '.'.join(sys.version.split(' ')[0].split('.')[:2])

# Create a template configuration
template = {
    'implementation': 'CPython',
    'version': get_major_minor_version(),  # Detecting major.minor Python version
    'shared': 'true',  # Assuming shared libraries are used
    'abi3': 'true',  # Assuming ABI3 is required
    'build_flags': 'WITH_THREAD',  # Assuming WITH_THREAD is needed
    'suppress_build_script_link_lines': 'false',
    'lib_dir': detect_lib_dir(),  # Detecting library directory using sysconfig
    'lib_name': detect_lib_name()  # Detecting library name using sysconfig
}

# Write the configuration to the file
config_file = 'pyo3_config.txt'
with open(config_file, 'w') as configfile:
    for key, value in template.items():
        configfile.write(f'{key}={value}\n')

print(f"Configuration written to {config_file}")

Example output on termux:

implementation=CPython
version=3.11
shared=true
abi3=true
build_flags=WITH_THREAD
suppress_build_script_link_lines=false
lib_dir=/data/data/com.termux/files/usr/lib
lib_name=python3.11

From my server:

implementation=CPython
version=3.12
shared=true
abi3=true
build_flags=WITH_THREAD
suppress_build_script_link_lines=false
lib_dir=/usr/lib
lib_name=python3.12