服务器安装python3环境

服务器安装python3环境

先安装相关包

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

下载python源码包

wget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tar.xz

解压源码包

tar -Jxvf Python-3.6.6.tar.xz 

配置安装路径

切换到解压目录下
cd Python-3.6.6
./configure prefix=/usr/local/python3

编译安装

　　make && make install 

创建软连接

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

如果遇到bug

# ln: failed to create symbolic link '/usr/bin/python3': File exists

说明已经有链接链到 /usr/bin/python上了，覆盖即可，使用命令

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

安装完成

使用pip安装包前,先更新pip

pip3 install --upgrade pip