Franco DiRosa <[EMAIL PROTECTED]> added the comment: I'm unsure if you are understanding what I'm doing so here is the story...
I stepped through Py_Initialize and this function takes the main interpreter and it's initial thread state and makes that the GIL thread state. The following code in Py_Initialize hijacks the main interpreter and thread state for GIL use... /* auto-thread-state API, if available */ #ifdef WITH_THREAD _PyGILState_Init(interp, tstate); #endif /* WITH_THREAD */ WITH_THREAD is defined since I'm using multithreading in my application. So now if you create thread states from the main interpeter and use the PyEval_Acquire/Release and PyThreadState_Swap you will get the assertion when compiled with the DEBUG option. If you use the PyGILState_Ensure and PyGILState_Release functions you don't. What I'm doing is that I have a Windows application with embedded python. The application spawns multiple threads each running a python script. Each application thread has its own unique PyThreadState created from the main interpreter because I wanted all the modules loaded only once for resource conservation purposes (thus use only one interpreter). I used PyEval_Acquire/Release and PyThreadState_Swap to handle swapping in each application thread's thread state when each one uses the python API. This worked great in RELEASE compilation but in DEBUG it asserted. Now that I use the GIL functions it works well and not only that, I removed the code I had put in myself to handle python callback's into the application and avoiding deadlocks by calling PyEval_Acquire onto itself (since it uses mutexes which doesn't do reference counting so it could deadlock waiting on itself to complete) _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue1758146> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com