import sys from sys import exc_info def get_frame_fallback(n): try: raise Exception except Exception: frame = exc_info()[2].tb_frame.f_back for _ in range(n): frame = frame.f_back return frame def load_get_frame_function(): if hasattr(sys, "_getframe"): get_frame = sys._getframe else: get_frame = get_frame_fallback return get_frame get_frame = load_get_frame_function()