1.安装编译相关工具

  1. yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make libffi-devel

2.下载安装包解压

  1. wget https://www.python.org/ftp/python/3.8.2/Python-3.8.2.tar.xz
  2. xz -d Python-3.8.2.tar.xz 
  3. tar -xvf Python-3.8.2.tar.xz

3.编译安装

  1. mkdir /usr/local/python3
  2. cd Python-3.8.2/
  3. ./configure --prefix=/usr/local/python3
  4. make && make install

4.创建软连接

  1. ln -sf /usr/local/python3/bin/python3 /usr/local/bin/python3;
  2. ln -sf /usr/local/python3/bin/pip3 /usr/local/bin/pip3
  3. ########################################################
  4. 4、配置环境变量并生效
  5. vim  /etc/profile
  6. 点击键盘“o”键在文档最后新增如下代码
  7. 　　#python3.8  configuration
  8. 　　PATH=$PATH:/usr/local/python3/bin:
  9. 　　export PATH
  10. 保存并退出vim
  11.  点击键盘ESC，输入:wq回车
  12. 使配置生效
  13. source /etc/profile
  14. #可通过两种方式使python3和pip3的命令全局生效，
  15. ########################################################

5.验证是否成功

  1. [root@xxx Python-3.8.2]# python3 -V
  2. Python 3.8.2
  3. [root@xxx Python-3.8.2]# pip3 -V
  4. pip 19.2.3 from /usr/local/python3/lib/python3.8/site-packages/pip (python 3.8)