Function _main

src/_pytest/config/__init__.py:204–243

(
    *,
    args: list[str] | os.PathLike[str] | None = None,
    plugins: Sequence[str | _PluggyPlugin] | None = None,
    prog: str,
)

def _main(
    *,
    args: list[str] | os.PathLike[str] | None = None,
    plugins: Sequence[str | _PluggyPlugin] | None = None,
    prog: str,
) -> int | ExitCode:
    # Handle a single `--version`/`-V` argument early to avoid starting up the entire pytest infrastructure.
    new_args = sys.argv[1:] if args is None else args
    if (
        isinstance(new_args, Sequence)
        and (new_args.count("--version") + new_args.count("-V")) == 1
    ):
        sys.stdout.write(f"pytest {__version__}\n")
        return ExitCode.OK

    old_pytest_version = os.environ.get("PYTEST_VERSION")
    try:
        os.environ["PYTEST_VERSION"] = __version__
        try:
            config = _prepareconfig(new_args, plugins, prog=prog)
        except ConftestImportFailure as e:
            print_conftest_import_error(e, file=sys.stderr)
            return ExitCode.USAGE_ERROR

        try:
            ret: ExitCode | int = config.hook.pytest_cmdline_main(config=config)
            try:
                return ExitCode(ret)
            except ValueError:
                return ret
        finally:
            config._ensure_unconfigure()
    except UsageError as e:
        print_usage_error(e, file=sys.stderr)
        return ExitCode.USAGE_ERROR
    finally:
        if old_pytest_version is None:
            os.environ.pop("PYTEST_VERSION", None)
        else:
            os.environ["PYTEST_VERSION"] = old_pytest_version


def _console_main() -> int: