> It seems like the change introduced a regression: bpo-36110.
While the test has been fixed, IMHO we need to better document this subtle behavior change since it can be surprising.
The test failed because PyObject_GetAttr() no longer ignores exceptions when getting the attribute from the type dictionary. It's a significant change compared to Python 3.7.
Right now, the change has not even a NEWS entry, whereas it's a backward incompatible change!
Don't get my wrong: the change is correct, we don't want to ignore arbitrary exceptions, it's just a matter of documentation.