Method __array_finalize__

numpy/core/tests/test_umath.py:4684–4688

(self, obj)

    class BadArr2(np.ndarray):
        def __array_finalize__(self, obj):
            if isinstance(obj, BadArr2):
                # outer inserts 1-sized dims. In that case disturb them.
                if self.shape[-1] == 1:
                    self.shape = self.shape[::-1]

        def __array_prepare__(self, obj, context=None):
            return obj