Nick Coghlan added the comment: Yep, it looks like the mess with the reference cycles in the tracebacks was just a secondary problem: the real culprit was the internal cache keeping everything else alive.
Attached patch just adds clearing encodings._cache and the CPython internal cache to the ExceptionChainingTest.tearDown() method. The latter is accomplised via gc.get_referrers() and popping the codec's name from any dict remaining in that list after clearing the known caches, so it will actually handle any hidden name based caches on any interpreter. ---------- Added file: http://bugs.python.org/file36560/issue22166_clear_internal_cache.diff _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue22166> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
