def qsize(self):
        self.mutex.acquire()
        try:
            return self._qsize()
        finally:
            self.mutex.release()
Field Test for when Blank, No Default, Null & Unique
dataset/ETHPy150Open ooici/pyon/pyon/util/threading.py/Queue.qsize--crossover with--dataset/ETHPy150Open stefanfoulis/django-phonenumber-field/testproject/testapp/tests.py/PhonenumerFieldAppTest.test_save_unique_null_blank_none_phone_to_database