python - 导入错误 : cannot import name 'PackageFinder'

Question

更新 conda 中的所有内容后，pip 无法安装任何内容

conda update -n base conda
conda update --all

安装或升级任何东西时，显示此错误

   $ pip install --upgrade HDF5
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\Scripts\pip-script.py", line 10, in <module>
    sys.exit(main())
  File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\main.py", line 45, in main
    command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
  File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\commands\__init__.py", line 96, in create_command
    module = importlib.import_module(module_path)
  File "C:\ProgramData\Anaconda3\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\commands\install.py", line 23, in <module>
    from pip._internal.cli.req_command import RequirementCommand
  File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\cli\req_command.py", line 17, in <module>
    from pip._internal.index import PackageFinder
ImportError: cannot import name 'PackageFinder'

请任何帮助。
谢谢你。

Answer 1

看来this works .重新安装最新版本的 pip:

$ curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py && python get-pip.py

完成后，删除安装脚本:

$ rm get-pip.py