1.1 App Store 搜索Xcode 并安装
1.2 安装 Xcode command line tool
1.2.1 打开命令行terminal工具
1.2.2 安装Xcode command line tool
xcode-select --install
2.1 安装 Homebrew
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
2.2 查看是否安装成功
brew doctor
brew install python
// 系统自带的python2.7,目录为/usr/bin/python
which python
//brew安装的python3.4,目录为/usr/local/bin/python3
which python3
// 给系统的python安装pip
easy_install pip
// 系统自带的
pip -v
//brew安装的
pip3 -v
// 系统自带的
pip install ipython
//brew安装的
pip3 install ipython