Missing __ne__ on proteus
The changeset 153863383394 replaced __cmp__ by __eq__ and __hash__ but the tests was not enough exhaustive and it did not detect that it was missing a __ne__ because otherwise '!=' has false positive.
The changeset 153863383394 replaced __cmp__ by __eq__ and __hash__ but the tests was not enough exhaustive and it did not detect that it was missing a __ne__ because otherwise '!=' has false positive.