sys.audit(0) aborts due to an assertion in debug build #126018
Description
Crash report
What happened?
There is an assert in sysmodule.c that makes the interpreter abort when calling sys.audit with a non-string value in debug builds:
Line 522 in f6cc7c8
Python 3.14.0a1+ (heads/main:c5b99f5c2c, Oct 26 2024, 12:35:53) [GCC 13.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.audit(9)
python: ./Python/sysmodule.c:522: sys_audit: Assertion `PyUnicode_Check(args[0])' failed.
Aborted (core dumped)This assert seems completely unnecessary, as the code that runs the hooks (which only triggers if there is some hook registered) will raise an exception if the first argument to sys.audit isn't a string:
Python 3.14.0a1+ (heads/remove_sysaudit_assert:ba8ac4d398, Oct 26 2024, 19:45:11) [GCC 11.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.addaudithook(lambda *args: None)
>>> sys.audit(9)
Traceback (most recent call last):
File "<python-input-2>", line 1, in <module>
sys.audit(9)
~~~~~~~~~^^^
TypeError: expected str for argument 'event', not intI'll submit a trivial PR removing this assert.
CPython versions tested on:
CPython main branch
Operating systems tested on:
Linux, Windows
Output from running 'python -VV' on the command line:
Python 3.14.0a1+ (heads/main:c5b99f5c2c, Oct 26 2024, 12:35:53) [GCC 13.2.0]