Ubuntu16.04安装Python3.7开发环境

Ubuntu16.04系统上自带Python2.7与Python3.5开发环境，现在我们要把Python3.7安装上并且保证pip正确使用

你只需要按照如下的命令一句一句的执行即可

• sudo apt-get update

• sudo apt-get install software-properties-common

• sudo add-apt-repository ppa:jonathonf/python-3.7

• sudo apt-get update

• sudo apt-get install python3.7

• cd /usr/bin

• ls -l | grep python

• sudo rm python

• sudo ln -s python3.7 python

• sudo vim /etc/apt/sources.list
  在文件结尾添加如下内容，保存并退出

deb http://cn.archive./ubuntu bionic main multiverse restricted universe
deb http://cn.archive./ubuntu bionic-updates main multiverse restricted universe
deb http://cn.archive./ubuntu bionic-security main multiverse restricted universe
deb http://cn.archive./ubuntu bionic-proposed main multiverse restricted universe

• sudo apt-get update

• sudo apt-get install python3-pip

• sudo apt-get install python3-distutils

• sudo vim /usr/local/bin/pip
  修改文件如下：
  

• pip --version

• python -m pip install --upgrade pip

• sudo vim /usr/local/bin/pip
  修改文件如下
  

• pip --version