tb.py 文件源码

def color_traceback(previous_hook=None):
    previous_hook = sys.excepthook

    def on_crash(type, value, tb):
        if getattr(sys.stderr, 'isatty'):
            colorizer = CustomColorizer('default')
            colorizer.colorize_traceback(type, value, tb)
            if previous_hook is not sys.__excepthook__:
                previous_hook(type, value, tb)

    sys.excepthook = on_crash