pip安装提供ModuleNotFoundError

Question

我使用的是python的miniconda版本，我已经使用virtualenv命令创建了虚拟环境。 最初，pip安装命令工作正常，但过了一段时间，它开始给我ModuleNotFoundError

当我调用命令安装jupyter笔记本时

pip install jupyter

我也试过了

pip3 install jupyter

甚至pip list命令也不起作用

我犯的错误是

Traceback (most recent call last):
  File "/Users/aarsh/Code/p/bin/pip", line 8, in <module>
    sys.exit(main())
  File "/Users/aarsh/Code/p/lib/python3.8/site-packages/pip/_internal/cli/main.py", line 73, in main
    command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
  File "/Users/aarsh/Code/p/lib/python3.8/site-packages/pip/_internal/commands/__init__.py", line 104, in create_command
    module = importlib.import_module(module_path)
  File "/Users/aarsh/opt/miniconda3/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Users/aarsh/Code/p/lib/python3.8/site-packages/pip/_internal/commands/install.py", line 17, in <module>
    from pip._internal.cli.req_command import RequirementCommand, with_cleanup
  File "/Users/aarsh/Code/p/lib/python3.8/site-packages/pip/_internal/cli/req_command.py", line 19, in <module>
    from pip._internal.network.download import Downloader
  File "/Users/aarsh/Code/p/lib/python3.8/site-packages/pip/_internal/network/download.py", line 13, in <module>
    from pip._internal.network.cache import is_from_cache
  File "/Users/aarsh/Code/p/lib/python3.8/site-packages/pip/_internal/network/cache.py", line 7, in <module>
    from pip._vendor.cachecontrol.cache import BaseCache
ModuleNotFoundError: No module named 'pip._vendor.cachecontrol'

请帮我解决这个问题

Answer 1

试试这个： pip install jupyterlab
如果pip不起作用，请尝试pip3： pip3 install jupyterlab

Answer 2

我发现了pip and pip3 no longer work中提到的相同问题

解决方案是重新安装和升级pip

ls .local/lib/python3.5/sitepackages
pip dist-packages
ls  .local/lib/python2.7/sitepackages
pip dist-packages

然后

sudo pip3 install  force-reinstall  upgrade pip
sudo pip install  force-reinstall  upgrade pip

上面提到的命令是针对基于linux的，您可能需要针对windows使用不同的cmd

Answer 3

试试：pip install notebook或pip3 install notebook 如果没有pip，请尝试：conda install notebook