Ok, thanks. I created https://bugs.python.org/issue44584 to deprecate the feature and schedule its removal in Python 3.12.
Victor On Wed, Jul 7, 2021 at 8:09 PM Guido van Rossum <gu...@python.org> wrote: > > I agree, that flag was probably last useful when we were debugging the > threading machinery itself. (Evidenced by it only working on --with-pydebug, > which is for when you're debugging CPython itself, not any user apps.) > > On Wed, Jul 7, 2021 at 9:33 AM Gregory P. Smith <g...@krypto.org> wrote: >> >> >> >> On Wed, Jul 7, 2021 at 2:28 AM Victor Stinner <vstin...@python.org> wrote: >>> >>> Hi, >>> >>> Does anyone use threading debug PYTHONTHREADDEBUG=1 env var on a >>> Python debug build? If not, can I just remove it? >>> >>> -- >>> >>> To fix a race condition at thread exit on Linux using the glibc, I >>> removed calls to pthread_exit() (PyThread_exit_thread()) in the >>> _thread module: >>> >>> https://bugs.python.org/issue44434 >>> >>> A side effect of this change is the removal of the >>> "PyThread_exit_thread called" threading debug log when using >>> PYTHONTHREADDEBUG=1 environment variable. >>> >>> I never used PYTHONTHREADDEBUG. I just tried it and it produces tons >>> of output in stdout about locks. It looks basically useless because it >>> produces way too many logs, and it pollutes stdout (ex: most Python >>> tests fail when it's enabled). >>> >>> This debug mode requires to build Python in debug mode (./configure >>> --with-pydebug): >>> >>> https://docs.python.org/dev/using/configure.html#python-debug-build >>> >>> IMO there are enough external debugging tools to debug threading >>> issues. Python no longer has to come with its built-in logs. >>> >>> I propose to deprecate the feature in Python 3.11 and remove it in 2 >>> releases (Python 3.13). >> >> >> I agree with its removal. >> >>> >>> Victor >>> -- >>> Night gathers, and now my watch begins. It shall not end until my death. >>> _______________________________________________ >>> Python-Dev mailing list -- python-dev@python.org >>> To unsubscribe send an email to python-dev-le...@python.org >>> https://mail.python.org/mailman3/lists/python-dev.python.org/ >>> Message archived at >>> https://mail.python.org/archives/list/python-dev@python.org/message/NMLGCDRUKLZSTK4UICJTKR54WRXU2ZGJ/ >>> Code of Conduct: http://python.org/psf/codeofconduct/ >> >> _______________________________________________ >> Python-Dev mailing list -- python-dev@python.org >> To unsubscribe send an email to python-dev-le...@python.org >> https://mail.python.org/mailman3/lists/python-dev.python.org/ >> Message archived at >> https://mail.python.org/archives/list/python-dev@python.org/message/F3MFU5YD6H6NIPW5ULIRNGAMSPSWXYPN/ >> Code of Conduct: http://python.org/psf/codeofconduct/ > > > > -- > --Guido van Rossum (python.org/~guido) > Pronouns: he/him (why is my pronoun here?) -- Night gathers, and now my watch begins. It shall not end until my death. _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/2JIZV4ZWRWHBAMYJYL2ELX5SOHFBSTCN/ Code of Conduct: http://python.org/psf/codeofconduct/
