Bugs item #1175194, was opened at 2005-04-01 21:11 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1175194&group_id=5470
Category: Threads Group: Python 2.4 Status: Open Resolution: None Priority: 5 Submitted By: Jeff Stearns (jeffstearns) Assigned to: Nobody/Anonymous (nobody) Summary: import statement likely to crash if module launches threads Initial Comment: I have a simple module which launches multiple HTTP client threads. The main thread creates 10 HTTP clients, each of which fetches documents from a web server. The main thread then simply goes to sleep while the client threads work. The threads are launched when the module is imported. If I launch the script via python bug1.py it launches and runs OK, and dies cleanly upon ^C. But if I launch the script via python -c 'import bug1' it hangs at launch, and dumps core upon ^C. Here's an example: [EMAIL PROTECTED]> ./python -c 'import bug1' Using 10 threads cccccccccc <- [program hangs here] Traceback (most recent call last): File "<string>", line 1, in ? File "test/bug1.py", line 55, in ? run (10) File "test/bug1.py", line 50, in run time.sleep (30000) KeyboardInterrupt Fatal Python error: PyImport_GetModuleDict: no module dictionary! Aborted (core dumped) You might argue that it's inappropriate to launch threads from within import statement, but I can't find a specific prohibition against it. In any event, it shouldn't cause the interpreter to crash. Please note that the crash isn't consistent. Sometimes the import statement doesn't lead to a crash. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1175194&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com