Centos7安装Python3，创建python3虚拟环境
1.安装依赖库
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make
2.下载编译安装python3
wget https://www.python.org/ftp/python/3.6.7/Python-3.6.7.tgz
tar -zxvf Python-3.6.7.tgz
cd Python-3.6.7
./configure prefix=/usr/local/python3 && make && make install
3.创建python3虚拟环境
/usr/local/python3/bin/python3 -m venv lark_wm #python3 环境
pip install virtualenv
virtualenv -p /usr/bin/python2.7 supervisor # python2环境
pip install -r requirements.txt # 安装依赖文件
pip freeze >requirements.txt # 生成依赖文件
Shylin