pip install jupyter 常见出错的解决方案

Exception:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2482, in _dep_map
    return self.__dep_map
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2344, in __getattr__
    raise AttributeError(attr)
AttributeError: _DistInfoDistribution__dep_map

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 122, in main
    status = self.run(options, args)
  File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 278, in run
    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
  File "/usr/lib/python3/dist-packages/pip/req.py", line 1266, in prepare_files
    req_to_install.extras):
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2291, in requires
    dm = self._dep_map
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2484, in _dep_map
    self.__dep_map = self._compute_dependencies()
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2508, in _compute_dependencies
    parsed = next(parse_requirements(distvers))
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2605, in parse_requirements
    line, p, specs = scan_list(VERSION,LINE_END,line,p,(1,2),"version spec")
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2573, in scan_list
    raise ValueError("Expected "+item_name+" in",line,"at",line[p:])
ValueError: ('Expected version spec in', 'widgetsnbextension ~=2.0.0', 'at', ' ~=2.0.0')

Storing debug log for failure in /home/fans/.pip/pip.log

然后用了 cmd 管理启动然后出现这个问题。

后来百度的解决方案是：

pip install --upgrade pip

pip install jupyter

然后成功了！

感谢：https://blog.****.net/u011037837/article/details/70236392

pip install jupyter 常见出错的解决方案

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