New submission from Xinmeng Xia <xi...@smail.nju.edu.cn>: In the following program 1, method "__sizeof__()" is called and assigned multiple times. The program can work well on Python 3.10. However if I change "__sizeof__()" to "__sizeof__". Then a segmentation fault is reported. I think something wrong for the parser when dealing build-in attribute assignment.
program 1: ========================= mystr = "hello123" for x in range(1000000): mystr = mystr.__sizeof__() print(mystr) ========================= 56 28 28 ....... 28 28 Output: work well as expected. program 2: ========================== mystr = "hello123" for x in range(1000000): mystr = mystr.__sizeof__ print(mystr) ========================== <built-in method __sizeof__ of builtin_function_or_method object at 0x7f04d3e0c220> ...... <built-in method __sizeof__ of builtin_function_or_method object at 0x7f04d3e0c4f0> <built-in method __sizeof__ of builtin_function_or_method object at 0x7f04d3e0c540> Segmentation fault (core dumped) Expected output: no segfault. ---------- components: Interpreter Core messages: 384797 nosy: xxm priority: normal severity: normal status: open title: Multiple assignments of attribute "__sizeof__" will cause a segfault type: crash versions: Python 3.10 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue42887> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com