test_multiarray.py 文件源码

def test_argpartition_empty_array(self):
        # check axis handling for multidimensional empty arrays
        a = np.array([])
        a.shape = (3, 2, 1, 0)
        for axis in range(-a.ndim, a.ndim):
            msg = 'test empty array argpartition with axis={0}'.format(axis)
            assert_equal(np.partition(a, 0, axis=axis),
                         np.zeros_like(a, dtype=np.intp), msg)
        msg = 'test empty array argpartition with axis=None'
        assert_equal(np.partition(a, 0, axis=None),
                     np.zeros_like(a.ravel(), dtype=np.intp), msg)