Centos7 系统Python 2.7.5 切换为Python3.6.3步骤

Python3安转包准备

• 下载安装包：wget https://www.python.org/ftp/python/3.6.3/Python-3.6.3.tgz
• 解压包：tar -zxf Python-3.6.3.tgz
• 在/user/local/ 创建目录 python3目录：mkdir python3
• 进入解压目录后执行编译命令：./configure –prefix=/usr/local/python3 && make all && make install
• 检查安装是否成功：/usr/local/python3/bin/python3.6.3 -V
• 修改软连接，启动python是指向python3.6

  备份之前文件：
  mv /usr/bin/python /usr/bin/python2.7.5
  
  修改软连接：
   ln -s /usr/local/python/bin/python3.6 /usr/local/python/bin/python3
   ln -s /usr/local/python3/bin/python3 /usr/bin/python

• 查看版本:python

编译过程中出现错误：缺少zlib相关的包，zlib-dev等包; 先安装：sudo yum install zlib* 再执行make操作

赏

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