Just a point of curiosity about reassigning `sys.excepthook`. Is there a reason you simply reassign it and lose information about the old excepthook: sys.e

Just a point of curiosity about reassigning `sys.excepthook`. Is there a reason you simply reassign it and lose information about the old excepthook: sys.excepthook = better_exchook instead of something like: def generate_better_exchook(..., current_excepthook=None): previous_excepthook = current_excepthook def better_exchook(exception_type, exception_instance, exception_traceback): ... if previous_excepthook is not None: previous_excepthook(exception_type, exception_instance, exception_traceback) return better_exchook and then sys.excepthook = generate_better_excepthook(..., sys.excepthook) Do you prefer not to do this because it would keep this closure around in memory until the Python process exits?