在Mac OS 12.4 (Monterey)下安裝Python 2.7

為什麼要安裝Python 2.7

系統升級到Monterey後Python 2.7消失了。而有些老的代碼需要2.7,完全遷移到Python3太麻煩。

安裝成功的方法

到Python官網下載macOS 64-bit安裝包,運行後即可

安裝路徑

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/usr/local/bin/python
/usr/local/bin/python
/usr/local/bin/python

這是一個鏈接,指向的真身在

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/Library/Frameworks/Python.framework/Versions/2.7/bin/python
/Library/Frameworks/Python.framework/Versions/2.7/bin/python
/Library/Frameworks/Python.framework/Versions/2.7/bin/python

不成功的安裝方法

Homebrew

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brew search python
brew search python
brew search python

到不到2.7版本。

pyenv

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brew install pyenv
pyenv install 2.7.18
brew install pyenv pyenv install 2.7.18
brew install pyenv
pyenv install 2.7.18

pyenv自身可以安裝成功。但是裝2.7.18會build fail。

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