STINNER Victor <victor.stin...@gmail.com> added the comment: My PR 4502 implements all optimizations, but also converts warnings.filters to a tuple, to detect when detect attempts to modify directly warnings.filters, rather than using function calls.
Problem: test.libregrtest module uses a pattern like this: old_filters = warnings.filters[:] # in function 1 (...) warnings.filters[:] = old_filters # in function 2 While this pattern is perfectly fine when filters is a list, "warnings.filters[:] = old_filters" fails since a tuple is immutable. Again, the question is if it's ok to break such code. I'm no more sure that catch_warnings() handles completly this use case, and a context manager is not convenient in the specific case of test.libregrest. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue27535> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
