Method copy

numpy/ma/core.py:6830–6834

Copy is a no-op on the maskedconstant, as it is a scalar

(self, *args, **kwargs)

    del __iop__  # don't leave this around

    def copy(self, *args, **kwargs):
        """ Copy is a no-op on the maskedconstant, as it is a scalar """
        # maskedconstant is a scalar, so copy doesn't need to copy. There's
        # precedent for this with `np.bool` scalars.
        return self

    def __copy__(self):
        return self