debain 安装python3

一、下载安装包

wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz

二、配置安装环境

apt install -y libffi-dev   

三、编译安装python

tar xvf Python-3.7.0.tar 
cd Python-3.7.0
./configure --prefix=/usr/local/python3.7/ --enable-optimizations
make && make install

四、创建链接

ln -s /usr/local/python3.7/bin/python3.7 /usr/bin/python3

ln -s /usr/local/python3.7/bin/pip3.7 /usr/bin/pip3