STINNER Victor <vstin...@redhat.com> added the comment:
Python 3.8 uses many free lists: https://pythondev.readthedocs.io/cpython_impl_optim.html#free-lists Attached dict_wrong_traceback.py shows the bug on the dictionary of an object: $ ./python ~/dict_wrong_traceback.py File "/home/vstinner/dict_wrong_traceback.py", line 13 p = Point() # first object (dead!) File "/home/vstinner/dict_wrong_traceback.py", line 8 self.x = 1 tracemalloc shows the traceback of the first object... which has been destroyed! With the fix: $ ./python ~/dict_wrong_traceback.py File "/home/vstinner/dict_wrong_traceback.py", line 16 p = Point() # second object (alive) File "/home/vstinner/dict_wrong_traceback.py", line 8 self.x = 1 It's much better: it doesn't show dead objects anymore :-) ---------- Added file: https://bugs.python.org/file47889/dict_wrong_traceback.py _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue35053> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
