centos8/linux:编译升级python版本:从python3.6到python3.11

一，查看python本地版本和最新版本

1,查看本地版本:

[lhdop@blog ~]$ python3 --version
Python 3.6.8

2,查看最新版本:

https://www.python.org/downloads/

可以看到最新版本：

二，安装python3.11 

说明：编译安装前，需要gcc、make 等工具已安装

1,下载:

复制下载链接后，

在本地用wget下载

[lhdop@blog python]$ wget https://www.python.org/ftp/python/3.11.0/Python-3.11.0.tgz

2,解压:

[lhdop@blog python]$ tar -zxvf Python-3.11.0.tgz

3,配置:

[lhdop@blog Python-3.11.0]$ ./configure --prefix=/usr/local/soft/python3.11 --enable-optimizations

4,编译:

[lhdop@blog Python-3.11.0]$ make

5,安装:

[lhdop@blog Python-3.11.0]$ make install

6,查看安装的效果:

[lhdop@blog Python-3.11.0]$ /usr/local/soft/python3.11/bin/python3 --version
Python 3.11.0
[lhdop@blog Python-3.11.0]$ /usr/local/soft/python3.11/bin/pip3 -V
pip 22.3 from /usr/local/soft/python3.11/lib/python3.11/site-packages/pip (python 3.11)

三，替换原有python并查看效果

查看原有的python的路径并替换

[root@blog ~]# whereis python3
python3: /usr/bin/python3.6m /usr/bin/python3.6 /usr/bin/python3 /usr/bin/python3.6-config /usr/bin/python3.6m-config
 /usr/bin/python3.6m-x86_64-config /usr/lib/python3.6 /usr/lib64/python3.6 /usr/local/lib/python3.6 /usr/include/python3.6m 
/usr/share/man/man1/python3.1.gz
[root@blog ~]# mv /usr/bin/python3 /usr/bin/python3.6.bak
[root@blog ~]# ln -s /usr/local/soft/python3.11/bin/python3 /usr/bin/python3

查看原有的pip的路径并替换

[root@blog ~]# whereis pip3
pip3: /usr/bin/pip3 /usr/bin/pip3.6 /usr/local/bin/pip3 /usr/local/bin/pip3.6 /usr/share/man/man1/pip3.1.gz
[root@blog ~]# mv /usr/bin/pip3 /usr/bin/pip3.bak
[root@blog ~]# ln -s /usr/local/soft/python3.11/bin/pip3 /usr/bin/pip3

测试效果:

[root@blog ~]# python3 --version
Python 3.11.0
[root@blog ~]# pip3 -V
pip 22.3 from /usr/local/soft/python3.11/lib/python3.11/site-packages/pip (python 3.11)

说明：刘宏缔的架构森林—专注it技术的博客，
网址：https://imgtouch.com
本文: https://blog.imgtouch.com/index.php/2023/06/03/centos8-linux-bian-yi-sheng-ji-python-ban-ben-cong-python3/
代码: https://github.com/liuhongdi/ 或 https://gitee.com/liuhongdi
说明：作者:刘宏缔 邮箱: 371125307@qq.com

四，查看linux的版本:

[root@blog ~]# cat /etc/redhat-release
CentOS Linux release 8.0.1905 (Core)