| #!/usr/bin/env python |
| |
| # ignore all lints for this file, since it is run by python2 as well |
| |
| # type: ignore |
| # pylint: disable=deprecated-module |
| |
| import sys |
| |
| # do not inject mesonbuild.scripts |
| # python -P would work too, but is exclusive to >=3.11 |
| if sys.path[0].endswith('scripts'): |
| del sys.path[0] |
| |
| import json, os, sysconfig |
| |
| def get_distutils_paths(scheme=None, prefix=None): |
| import distutils.dist |
| distribution = distutils.dist.Distribution() |
| install_cmd = distribution.get_command_obj('install') |
| if prefix is not None: |
| install_cmd.prefix = prefix |
| if scheme: |
| install_cmd.select_scheme(scheme) |
| install_cmd.finalize_options() |
| return { |
| 'data': install_cmd.install_data, |
| 'include': os.path.dirname(install_cmd.install_headers), |
| 'platlib': install_cmd.install_platlib, |
| 'purelib': install_cmd.install_purelib, |
| 'scripts': install_cmd.install_scripts, |
| } |
| |
| # On Debian derivatives, the Python interpreter shipped by the distribution uses |
| # a custom install scheme, deb_system, for the system install, and changes the |
| # default scheme to a custom one pointing to /usr/local and replacing |
| # site-packages with dist-packages. |
| # See https://github.com/mesonbuild/meson/issues/8739. |
| # |
| # We should be using sysconfig, but before 3.10.3, Debian only patches distutils. |
| # So we may end up falling back. |
| |
| def get_install_paths(): |
| if sys.version_info >= (3, 10): |
| scheme = sysconfig.get_default_scheme() |
| else: |
| scheme = sysconfig._get_default_scheme() |
| |
| if sys.version_info >= (3, 10, 3): |
| if 'deb_system' in sysconfig.get_scheme_names(): |
| scheme = 'deb_system' |
| else: |
| import distutils.command.install |
| if 'deb_system' in distutils.command.install.INSTALL_SCHEMES: |
| paths = get_distutils_paths(scheme='deb_system') |
| install_paths = get_distutils_paths(scheme='deb_system', prefix='') |
| return paths, install_paths |
| |
| paths = sysconfig.get_paths(scheme=scheme) |
| empty_vars = {'base': '', 'platbase': '', 'installed_base': ''} |
| install_paths = sysconfig.get_paths(scheme=scheme, vars=empty_vars) |
| return paths, install_paths |
| |
| paths, install_paths = get_install_paths() |
| |
| def links_against_libpython(): |
| # on versions supporting python-embed.pc, this is the non-embed lib |
| # |
| # PyPy is not yet up to 3.12 and work is still pending to export the |
| # relevant information (it doesn't automatically provide arbitrary |
| # Makefile vars) |
| if sys.version_info >= (3, 8) and not is_pypy: |
| variables = sysconfig.get_config_vars() |
| return bool(variables.get('LIBPYTHON', 'yes')) |
| else: |
| from distutils.core import Distribution, Extension |
| cmd = Distribution().get_command_obj('build_ext') |
| cmd.ensure_finalized() |
| return bool(cmd.get_libraries(Extension('dummy', []))) |
| |
| variables = sysconfig.get_config_vars() |
| variables.update({'base_prefix': getattr(sys, 'base_prefix', sys.prefix)}) |
| |
| is_pypy = '__pypy__' in sys.builtin_module_names |
| |
| if sys.version_info < (3, 0): |
| suffix = variables.get('SO') |
| elif sys.version_info < (3, 8, 7): |
| # https://bugs.python.org/issue?@action=redirect&bpo=39825 |
| from distutils.sysconfig import get_config_var |
| suffix = get_config_var('EXT_SUFFIX') |
| else: |
| suffix = variables.get('EXT_SUFFIX') |
| |
| limited_api_suffix = None |
| if sys.version_info >= (3, 2): |
| try: |
| from importlib.machinery import EXTENSION_SUFFIXES |
| limited_api_suffix = EXTENSION_SUFFIXES[1] |
| except Exception: |
| pass |
| |
| # pypy supports modules targetting the limited api but |
| # does not use a special suffix to distinguish them: |
| # https://doc.pypy.org/en/latest/cpython_differences.html#permitted-abi-tags-in-extensions |
| if is_pypy: |
| limited_api_suffix = suffix |
| |
| print(json.dumps({ |
| 'variables': variables, |
| 'paths': paths, |
| 'sysconfig_paths': sysconfig.get_paths(), |
| 'install_paths': install_paths, |
| 'version': sysconfig.get_python_version(), |
| 'platform': sysconfig.get_platform(), |
| 'is_pypy': is_pypy, |
| 'is_venv': sys.prefix != variables['base_prefix'], |
| 'link_libpython': links_against_libpython(), |
| 'suffix': suffix, |
| 'limited_api_suffix': limited_api_suffix, |
| })) |