Ethan Furman added the comment:
My understanding was that if a different patch will be needed, it is not the
same issue. Is that not correct?
Here's the test:
def test_iadd(self):
...
self.assertRaises(TypeError, u.__iadd__, None)
It would still pass, as returning NotImplemented will still result in a
TypeError, just with a friendlier message.
If any code is depending on this, it is depending on the error message text,
which is explicitly not guaranteed
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<http://bugs.python.org/issue22778>
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