def _validate_iso_format(self, start_date):
        try:
            return datetime.datetime.strptime(
                start_date, "%Y-%m-%dT%H:%M:%S")
        except __HOLE__:
            return False
dataset/ETHPy150Open openstack/freezer-web-ui/disaster_recovery/sessions/workflows/create.py/SessionConfigurationAction._validate_iso_format