Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:
It looks like method _ModuleLock.acquire() was re-entered in the same thread. * Enter acquire() first time, set _blocking_on[tid]. * Trigger some callback (profiler, debugger, tracemalloc) which uses import and calls acquire() again from the same thread. * Enter acquire() second time, set _blocking_on[tid]. * Delete _blocking_on[tid] and leave the second acquire(). * Try to leave the first acquire() and delete _blocking_on[tid] again. ---------- nosy: +brett.cannon, eric.snow, ncoghlan, pitrou, serhiy.storchaka, vstinner _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue43546> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
