Class ArraySubclass

lib/matplotlib/tests/test_cbook.py:870–877

    # isinstance(x, collections.abc.Iterable).

    class ArraySubclass(np.ndarray):

        def __iter__(self):
            for value in super().__iter__():
                yield np.array(value)

        def __getitem__(self, item):
            return np.array(super().__getitem__(item))

    v = np.arange(10, dtype=float)
    x = ArraySubclass((10,), dtype=float, buffer=v.data)