New submission from Bohuslav "Slavek" Kabrda: When Python is compiled with COUNT_ALLOCS, some tests in test_gc and test_module fail. I'm attaching the patch that skips 3 of them and modifies assertions in one of them, so that the tests pass.
I'm however still unsure about one of the skipped tests, since I'm unsure whether I totally understand what's wrong there - test_gc_ordinary_module_at_shutdown. My guess is that due to COUNT_ALLOCS causing immortal types, the "final_a" and "final_b" types don't get destroyed on line [1] as they do in builds without COUNT_ALLOCS. AFAICS they are only "un-immortalized" on this line and destroyed during the following loop [2]. The problem here is that the order of destroyed modules is not deterministic, so sometimes the builtins module gets destroyed before the "final_X" and there is no "print" function, which makes the __del__ functions from "final_X" fail. IMO the best thing to do is to just skip this test with COUNT_ALLOCS. But I may be wrong, I don't have a great insight into Python's GC and module unloading. [1] http://hg.python.org/cpython/annotate/0f48843652b1/Python/import.c#l383 [2] http://hg.python.org/cpython/annotate/0f48843652b1/Python/import.c#l394 ---------- messages: 202414 nosy: bkabrda priority: normal severity: normal status: open title: Test failures with COUNT_ALLOCS versions: Python 3.4 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue19527> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
