Method test_init_pyvenv_cfg

Lib/test/test_embed.py:1681–1750

(self)

                                   ignore_stderr=False, cwd=tmpdir)

    def test_init_pyvenv_cfg(self):
        # Test path configuration with pyvenv.cfg configuration file

        with self.tmpdir_with_python() as tmpdir, \
             tempfile.TemporaryDirectory() as pyvenv_home:

            ver = sys.version_info
            base_prefix = sysconfig.get_config_var("prefix")

            # gh-128690: base_exec_prefix depends if PLATSTDLIB_LANDMARK exists
            platstdlib = os.path.join(base_prefix, PLATSTDLIB_LANDMARK)
            change_exec_prefix = not os.path.isdir(platstdlib)

            if not MS_WINDOWS:
                lib_dynload = os.path.join(pyvenv_home,
                                           sys.platlibdir,
                                           f'python{ver.major}.{ver.minor}{ABI_THREAD}',
                                           'lib-dynload')
                os.makedirs(lib_dynload)
            else:
                lib_folder = os.path.join(pyvenv_home, 'Lib')
                os.makedirs(lib_folder)
                # getpath.py uses Lib\os.py as the LANDMARK
                shutil.copyfile(
                    os.path.join(support.STDLIB_DIR, 'os.py'),
                    os.path.join(lib_folder, 'os.py'),
                )

            filename = os.path.join(tmpdir, 'pyvenv.cfg')
            with open(filename, "w", encoding="utf8") as fp:
                print("home = %s" % pyvenv_home, file=fp)
                print("include-system-site-packages = false", file=fp)

            paths = self.module_search_paths()
            if not MS_WINDOWS:
                if change_exec_prefix:
                    paths[-1] = lib_dynload
            else:
                paths = [
                    os.path.join(tmpdir, os.path.basename(paths[0])),
                    pyvenv_home,
                    os.path.join(pyvenv_home, "Lib"),
                ]

            executable = self.test_exe
            base_executable = os.path.join(pyvenv_home, os.path.basename(executable))
            config = {
                'base_prefix': base_prefix,
                'exec_prefix': tmpdir,
                'prefix': tmpdir,
                'base_executable': base_executable,
                'executable': executable,
                'module_search_paths': paths,
            }
            if change_exec_prefix:
                config['base_exec_prefix'] = pyvenv_home
            if MS_WINDOWS:
                config['base_prefix'] = pyvenv_home