test_regression.py 文件源码

def test_unpickle_dtype_with_object(self,level=rlevel):
        # Implemented in r2840
        dt = np.dtype([('x', int), ('y', np.object_), ('z', 'O')])
        f = BytesIO()
        pickle.dump(dt, f)
        f.seek(0)
        dt_ = pickle.load(f)
        f.close()
        assert_equal(dt, dt_)