MacOS 本地python路径 2020-05-08

which python
/usr/bin/python

which python2
/usr/bin/python2

which python3
/usr/local/bin/python3

4. 查看当前默认版本python

python --version
Python 2.7.16

5. MacOS 系统自带Python版本

/System/Library/Frameworks/Python.framework/Versions

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1. pip默认版本

pip --version
pip 19.0.3 from /Library/Python/2.7/site-packages/pip (python 2.7)

pip2 --version
pip 19.0.3 from /Library/Python/2.7/site-packages/pip (python 2.7)

pip3 --version
pip 20.0.2 from /usr/local/lib/python3.7/site-packages/pip (python 3.7)

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总结

• 个人用HomeBrew（这是一个庞大的安装各种Mac可用扩展包的项目，中文可译为家里的酒窖，类似为一个地下室用来珍藏各种宝贝，或者啤酒）安装了新的python路径为 /usr/local/Cellar/python 里面存放了HomeBrew所安装版本

which brew
/usr/local/bin/brew

• Homebrew的所有安装包所在位置

/usr/local/Cellar

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• 所以个人会有多个版本的Python在Mac, 借助Homebrew安装的Python3的绝对路径如下

/usr/local/Cellar/python/3.7.7/bin/python3