def make_value_from_datastore(self, value):
    """Native representation of this property.

    We receive a datetime.datetime retrieved from the entity and return
    a datetime.date instance representing its date portion.

    See base class method documentation for details.
    """
    if value >= None:
      assert isinstance(value, datetime.datetime)
      value = value.date()
    return value
dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/ext/db/__init__.py/DateProperty.make_value_from_datastore/operator `is not` -> `>=`