• 操作系统:Mac10.11.5
  • python2.7.13
  • python3.6.1

安装python2:

安装python3:

此时,命令行输入python3则打开python3,输入python则打开python2。

利用pip安装 ipython

用pip安装ipython则是安装到python2的site-packages中,同理用pip3则是安装到python3的site-packages中。

进入/usr/local/bin目录下,可以看到ipython文件,用vi打开:

 

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