Ubuntu下升级 python3.6流程备忘

下载源码
wget https://www.python.org/ftp/python/3.6.8/Python-3.6.8.tgz
解压源码
tar -xvzf Python-3.6.8.tgz
进入目录
cd Python-3.6.8
配置安装路径

./configure --with-ssl --prefix=/usr/local/python3
# 安装python3.6.8依赖
sudo apt-get update 
sudo apt-get install build-essential python-dev python-setuptools python-pip python-smbus libncursesw5-dev libgdbm-dev libc6-dev zlib1g-dev libsqlite3-dev tk-dev libssl-dev openssl libffi-dev

编译
make
安装
sudo make install
删除软链接

sudo rm -rf /usr/bin/python3
sudo rm -rf /usr/bin/pip3

新建软链接

sudo ln -s /usr/local/python3/bin/python3.6 /usr/bin/python3
sudo ln -s /usr/local/python3/bin/pip3.6 /usr/bin/pip3

检查是否安装成功
python3