Function directory_arg

src/_pytest/config/__init__.py:214–222

Argparse type validator for directory arguments. :path: Path of directory. :optname: Name of the option.

(path: str, optname: str)

def directory_arg(path: str, optname: str) -> str:
    """Argparse type validator for directory arguments.

    :path: Path of directory.
    :optname: Name of the option.
    """
    if not os.path.isdir(path):
        raise UsageError(f"{optname} must be a directory, given: {path}")
    return path


# Plugins that cannot be disabled via "-p no:X" currently.