def deferred_call(self, callback, *args, **kwargs):
        DeferredCall(callback, *args, **kwargs)
Bug #8534: FileField.size should not leave the file open.
dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/wx/wx_application.py/WxApplication.deferred_call--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/tests/regressiontests/model_fields/imagefield.py/ImageFieldTests.test_size_method