mac安装python2.7_Mac 上安装Python2.7和Python3

1 安装Xcode

xcode-select --install

2 安装Homebrew

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

清华大学镜像

cd "$(brew --repo)"

git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git

cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"

git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git

brew update

3 安装Python

接下来要正式进入安装Python的步骤了！

首先，输入

python --version

打印出 Python 2.7.10 ，是mac自带的，不需要卸载

开始安装：

利用homebrew搜索Python

brew search python

会有如下结果：

app-engine-python gst-python python ✔ wxpython

boost-python ipython python-markdown zpython

boost-python3 ipython@5 python-yq

boost-python@1.5