AttributeError: module ‘collections‘ has no attribute ‘MutableMapping‘

情况说明

今天在装live server时遇到如下两个问题。

• module ‘collections’ has no attribute ‘MutableSet’
• AttributeError: module ‘collections’ has no attribute ‘MutableMapping’

部分错误结果如下：

(py3_django4-0-4) [email protected]:~/Desktop/meiduo/front_end$ live-server 
Traceback (most recent call last):
  File "/home/lds/.local/bin/live-server", line 5, in <module>
    from live_server.cli import cli
  File "/home/lds/.local/lib/python3.10/site-packages/live_server/cli.py", line 4, in <module>
    from . import watcher
  File "/home/lds/.local/lib/python3.10/site-packages/live_server/watcher.py", line 7, in <module>
    from . import server
  File "/home/lds/.local/lib/python3.10/site-packages/live_server/server.py", line 5, in <module>
    import tornado.web
  File "/home/lds/.local/lib/python3.10/site-packages/tornado/web.py", line 88, in <module>
    from tornado import httputil
  File "/home/lds/.local/lib/python3.10/site-packages/tornado/httputil.py", line 107, in <module>
    class HTTPHeaders(collections.MutableMapping):
AttributeError: module 'collections' has no attribute 'MutableMapping'

解决方案

网上找了好多都是把问题贴出来然后就没下文了，琢磨了三四个小时幸亏解决了！！应该是python 3.10 那些 MutableMapping，MutableSet等放的位置变了，他们的上级模块原本直属collections的变成了abc，也就是说，需要把

collections.MutableMapping

改成

collections.abc.MutableMapping

那要怎么改呢？

比如我这里报错，就点进源文件里面
按上述方法修改即可。