test_multiarray.py 文件源码

def test_nofile(self):
        # this should probably be supported as a file
        # but for now test for proper errors
        b = io.BytesIO()
        assert_raises(IOError, np.fromfile, b, np.uint8, 80)
        d = np.ones(7);
        assert_raises(IOError, lambda x: x.tofile(b), d)