def _determine_default_project(project=None): """Determine default project explicitly or implicitly as fall-back. In implicit case, supports four environments. In order of precedence, the implicit environments are: * DATASTORE_DATASET environment variable (for ``gcd`` / emulator testing) * GOOGLE_CLOUD_PROJECT environment variable * Google App Engine application ID * Google Compute Engine project ID (from metadata server) :type project: str :param project: Optional. The project to use as default. :rtype: str or ``NoneType`` :returns: Default project if it can be determined. """ if project is None: project = _get_gcd_project() if project is None: project = _base_default_project(project=project) return project
def _determine_default_project(project=None): """Determine default project explicitly or implicitly as fall-back. In implicit case, supports four environments. In order of precedence, the implicit environments are: * DATASTORE_DATASET environment variable (for ``gcd`` / emulator testing) * GOOGLE_CLOUD_PROJECT environment variable * Google App Engine application ID * Google Compute Engine project ID (from metadata server) :type project: string :param project: Optional. The project to use as default. :rtype: string or ``NoneType`` :returns: Default project if it can be determined. """ if project is None: project = _get_gcd_project() if project is None: project = _base_default_project(project=project) return project