1. ubuntu20.04
 
  
 1. 添加python软件源
 
 sudo apt update
sudo apt install software-properties-common
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
 
 2. 安装
 
 sudo apt install python3.6
 
 3. 查看安装版本
 
 python3.6 -V
 
 2. ubuntu18.4安装python3.6
 
  
 3. ubuntu16.4安装python3.6
 
 
  - Ubuntu自带版本是python2.7和3.5
 
  - 库里最高python3.5,所以添加源
 
 
 
 3.1 添加源
 
  sudo add-apt-repository ppa:jonathonf/python-3.6
 
 3.2 更新源
 
 sudo apt-get update
 
 3.3 安装
 
 sudo apt-get install python3.6 -y
 
 3.4 查看安装是否成功
 
 python3.6
 
 4. centos7.5安装python3.6
 
 4.1 安装 Python 3
 
 yum install python3 -y
 
 4.2 安装完成后,验证安装情况
 
 python3 -V
pip3 -V
 
 4.3 升级pip
 
 python3 -m pip install --upgrade pip