Python: register the debugger to run in an uncaught exception hook

excepthook.py

def _debug() -> None:
    import sys
    import pdb
    import traceback

    def debughook(etype, value, tb):
        traceback.print_exception(etype, value, tb)
        print() # make a new line before launching post-mortem
        pdb.pm() # post-mortem debugger

    sys.excepthook = debughook