python3的安装

python3的安装

Homebrew是Mac平台下强大的包管理工具，执行如下命令，即可安装Homebrew。

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

ljw@ljdeMacBook-Pro ~ % ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Warning: The Ruby Homebrew installer is now deprecated and has been rewritten in
Bash. Please migrate to the following command:
  /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

brew 镜像安装脚本（亲测最快速最有效）

/usr/bin/ruby -e "$(curl -fsSL https://cdn.jsdelivr.net/gh/ineo6/homebrew-install/install)"

ljw@ljdeMacBook-Pro ~ %  /usr/bin/ruby -e "$(curl -fsSL https://cdn.jsdelivr.net/gh/ineo6/homebrew-install/install)"
Warning: Ruby版本Homebrew安装脚本已被废弃，新版脚本使用Bash重写。
请使用以下命令:
  /bin/bash -c "$(curl -fsSL https://cdn.jsdelivr.net/gh/ineo6/homebrew-install/install.sh)"

引用:Mac安装Homebrew的正确姿势

安装前先搜索一下是否已经存在python3的包：

brew search python3

使用brew命令安装Python 3和pip 3

brew install python3

Anaconda安装

Anaconda的官方下载链接为https://www.continuum.io/downloads，选择Python 3版本的安装包下载即可，如图1-1所示。
如果下载速度过慢，可以选择使用清华大学镜像，下载列表链接为https://mirrors.tuna.tsinghua.edu.cn/anaconda/archive/