app_engine.py 文件源码

def get_project_id():
    """Gets the project ID for the current App Engine application.

    Returns:
        str: The project ID

    Raises:
        EnvironmentError: If the App Engine APIs are unavailable.
    """
    # pylint: disable=missing-raises-doc
    # Pylint rightfully thinks EnvironmentError is OSError, but doesn't
    # realize it's a valid alias.
    if app_identity is None:
        raise EnvironmentError(
            'The App Engine APIs are not available.')
    return app_identity.get_application_id()