attribute
Number of dimensions of the sub-array if this data type describes a sub-array, and 0 otherwise.
0
New in version 1.13.0.
Examples
>>> x = np.dtype(float) >>> x.ndim 0
>>> x = np.dtype((float, 8)) >>> x.ndim 1
>>> x = np.dtype(('i4', (3, 4))) >>> x.ndim 2