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-rwxr-xr-xmesonbuild/scripts/python_info.py75
1 files changed, 75 insertions, 0 deletions
diff --git a/mesonbuild/scripts/python_info.py b/mesonbuild/scripts/python_info.py
new file mode 100755
index 0000000..a851356
--- /dev/null
+++ b/mesonbuild/scripts/python_info.py
@@ -0,0 +1,75 @@
+#!/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 os.path
+import sysconfig
+import json
+import sys
+import distutils.command.install
+
+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.
+# XXX: We should be using sysconfig, but Debian only patches distutils.
+
+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='')
+else:
+ paths = sysconfig.get_paths()
+ empty_vars = {'base': '', 'platbase': '', 'installed_base': ''}
+ install_paths = sysconfig.get_paths(vars=empty_vars)
+
+def links_against_libpython():
+ 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)})
+
+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')
+
+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': '__pypy__' in sys.builtin_module_names,
+ 'is_venv': sys.prefix != variables['base_prefix'],
+ 'link_libpython': links_against_libpython(),
+ 'suffix': suffix,
+}))