Method test_sys_path_0

Lib/test/test_interpreters/test_lifecycle.py:118–163

(self)

        return proc.stdout

    def test_sys_path_0(self):
        # The main interpreter's sys.path[0] should be used by subinterpreters.
        script = '''
            import sys
            from concurrent import interpreters

            orig = sys.path[0]

            interp = interpreters.create()
            interp.exec(f"""if True:
                import json
                import sys
                print(json.dumps({{
                    'main': {orig!r},
                    'sub': sys.path[0],
                }}, indent=4), flush=True)
                """)
            interp.close()
            '''
        # <tmp>/
        #   pkg/
        #     __init__.py
        #     __main__.py
        #     script.py
        #   script.py
        cwd = self.create_temp_dir()
        self.write_script(cwd, 'pkg', '__init__.py', text='')
        self.write_script(cwd, 'pkg', '__main__.py', text=script)
        self.write_script(cwd, 'pkg', 'script.py', text=script)
        self.write_script(cwd, 'script.py', text=script)

        cases = [
            ('script.py', cwd),
            ('-m script', cwd),
            ('-m pkg', cwd),
            ('-m pkg.script', cwd),
            ('-c "import script"', ''),
        ]
        for argv, expected in cases:
            with self.subTest(f'python3 {argv}'):
                out = self.run_python(argv, cwd=cwd)
                data = json.loads(out)
                sp0_main, sp0_sub = data['main'], data['sub']
                self.assertEqual(sp0_sub, sp0_main)
                self.assertEqual(sp0_sub, expected)
        # XXX Also check them all with the -P cmdline flag?


class FinalizationTests(TestBase):