def value_to_db_datetime(self, value):
        if value is None:
            return None
        return unicode(value)
Assert that the extension required for this image data is
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/db/backends/__init__.py/BaseDatabaseOperations.value_to_db_datetime--crossover with--dataset/ETHPy150Open ardekantur/pyglet/pyglet/image/__init__.py/CompressedImageData._verify_driver_supported