centos7 下python3和python2共存

在这里首先强调一下，Centos7系统自带的Python2我们不要删除，我们要做的是在Python2和python3并存

1、安装依赖包

yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc* make -y

2、下载python安装包
wget https://www.landui.com/ftp/python/3.5.2/Python-3.5.2.tar.xz

3、解压python安装包
tar -Jxvf Python-3.5.2.tar.xz

4、配置安装路径

切入到解压目录下

./configure prefix=/usr/local/python3

5、编译安装

切入到解压目录下

make && make install

6、配置软连接

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

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

7、导出之前python安装的包的清单

8、安装清单
Pip3 install -r package.txt