通常、pip install xxx を使用した後、現在の pip バージョンが低すぎるため、最新バージョンにアップグレードしてくださいを示す黄色のプロンプト メッセージが表示され、アップグレード コマンドが表示されます。
You are using pip version 19.0.3, however version 22.2.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
pip install --upgrade pip -i http://pypi.douban.com/simple/
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
Looking in indexes: http://pypi.douban.com/simple/
Requirement already satisfied: pip in /usr/local/lib/python3.7/site-packages (22.2.2)
WARNING: The repository located at pypi.douban.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with '--trusted-host pypi.douban.com'.
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
プロンプトには「–trusted-host pypi.douban.com」を追加する必要があります
pip3 install --upgrade pip -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
Looking in indexes: http://pypi.douban.com/simple/
Collecting pip
Downloading http://pypi.doubanio.com/packages/1f/2c/d9626f045e7b49a6225c6b09257861f24da78f4e5f23af2ddbdf852c99b8/pip-22.2.2-py3-none-any.whl (2.0MB)
100% |████████████████████████████████| 2.0MB 39.2MB/s
Installing collected packages: pip
Found existing installation: pip 19.0.3
Uninstalling pip-19.0.3:
Successfully uninstalled pip-19.0.3
Successfully installed pip-22.2.2
pip3 -V と入力して pip バージョンを確認します。
ピップ-V
pip 22.2.2 from /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip (python 3.7)
OK、アップデートは成功しました！