faulthandler is a module to display the Python backtrace on a fatal error (eg. segfault), after a delay (eg. 60 minutes) or when a user signal is send (eg. SIGUSR1). Changes of the version 1.4: * Add register() and unregister() functions * Add optional all_threads argument to enable() * Limit the backtrace to 100 threads * Allocate an alternative stack for the fatal signal handler to be able to display a backtrace on a stack overflow (define HAVE_SIGALTSTACK). Not available on Windows. * Windows installer for Python 3.2(RC3) You can choose the output file (sys.stderr by default) and to dump the backtrace of the current thread (default) or of all threads. faulthandler works on Python 2.5, 2.6, 2.7, 3.1 and 3.2. It is tested on Linux, FreeBSD on Windows, it should work on any operating system. For more information, see: https://github.com/haypo/faulthandler/wiki/ http://pypi.python.org/pypi/faulthandler/ Victor Stinner aka haypo