python????????????__reduce__()?????????，pythonreduce函数,??????????
python????????????__reduce__()?????????，pythonreduce函数,??????????
?????????
??????__reduce__()??????
??????????????????????????????????????????Python???C??????API?????????????????????????????????pickle????????????????????????Python??????pickle?????????__reduce__??????????????????????????????Pickle???????????????????????????????????????????????????????????????????????????Pyhton???????????????pickle????????????????????????????????????????????????2???5??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????__setstate__???????????????????????????????????????pickle?????????????????????????????????????????????????????????pickle???????????????????????????????????????
??????????????????
class ServerError(UserWarning): # UserWarning??????????????????????????? def error(self): # C?????????????????????????????????pickle???????????? return self.__reduce__()[1]#????????????(<class ???__main__.ServerError???>, (??????????????????,))??????????????????1def instance_name(name): try: if not isinstance(name,str): raise ServerError("????????????????????????") except ServerError as e: error=e.error()[0] print(error)instance_name(123)#??????????????????????????????????????????????????????json?????????????????????python????????????__reduce__()?????????
?????????
???????????????https://www.cnblogs.com/angelyan/p/11079267.html
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