python报错assert group is None, "group argument must be None for now"解决方案

1.python出现assert group is None, "group argument must be None for now"报错时,翻译过来就是“组参数现在必须为无”的意思 assert group is None, "group argument must be None for now" 查看代码的时候发现初始化时直接摁了回车,没检查,多传了一个self 2.关于线程锁的理解:锁
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