Method test_shebang_command_in_venv

Lib/test/test_launcher.py:772–795

(self)

        )

    def test_shebang_command_in_venv(self):
        stem = "python-that-is-not-on-path"

        # First ensure that our test name doesn't exist, and the launcher does
        # not match any installed env
        with self.script(f'#! /usr/bin/env {stem} arg1') as script:
            data = self.run_py([script], expect_returncode=103)

        with self.fake_venv() as (venv_exe, env):
            # Put a "normal" Python on PATH as a distraction.
            # The active VIRTUAL_ENV should be preferred when the name isn't an
            # exact match.
            exe = Path(Path(venv_exe).name).absolute()
            exe.touch()
            self.addCleanup(exe.unlink)
            env["PATH"] = f"{exe.parent};{os.environ['PATH']}"

            with self.script(f'#! /usr/bin/env {stem} arg1') as script:
                data = self.run_py([script], env=env)
            self.assertEqual(data["stdout"].strip(), f"{quote(venv_exe)} arg1 {quote(script)}")

            with self.script(f'#! /usr/bin/env {exe.stem} arg1') as script:
                data = self.run_py([script], env=env)
            self.assertEqual(data["stdout"].strip(), f"{quote(exe)} arg1 {quote(script)}")

    def test_shebang_executable_extension(self):
        with self.script('#! /usr/bin/env python3.99') as script: