mac os 上安装python 和 pip

python 2.7

mac os 10.14 Mojave 自带 python 2.7

所以，只需要安装下 pip ： sudo easy_install pip

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$ pip --version
pip 18.1 from /Library/Python/2.7/site-packages/pip-18.1-py2.7.egg/pip (python 2.7)

python 3

  1. 到App Store 安装 Xcode
  2. Install Brew https://brew.sh/#install 
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     /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
  3. Install Python3 with Brew 
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     brew install python3
  4. 设置PATH environment 
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     # Add the following line to your ~/.profile file

 export PATH=/usr/local/bin:/usr/local/sbin:$PATH
 export PATH="/Library/Frameworks/Python.framework/Versions/3.6/bin:${PATH}"