Centos6下Python3的编译安装
系统环境:CentOS 6.8-Minimal
安装Python依赖包:
[root@Python src]# yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make
下载Python源码包:
[root@Python src]# wget http://mirrors.sohu.com/python/3.5.2/Python-3.5.2.tgz
编译、安装:
[root@Python /]# tar -xzvf /usr/local/src/Python-3.5.2.tgz -C /usr/local/src/ [root@Python /]# cd /usr/local/src/Python-3.5.2 [root@Python Python-3.5.2]# ./configure --prefix=/usr/local/python [root@Python Python-3.5.2]# make -j 4 [root@Python Python-3.5.2]# make install
查看扩展安装包:
[root@Python /]# /usr/local/python/bin/pip3 list pip (8.1.1) setuptools (20.10.1)
添加Python命令到环境变量:
[root@Python /]# vim ~/.bash_profile PATH=$PATH:$HOME/bin 改为: PATH=$PATH:$HOME/bin:/usr/local/python/bin
使环境变量生效:
[root@Python /]# source ~/.bash_profile
查看Python版本:
[root@Python /]# python3 -V Python 3.5.2
更改系统默认python版本为Python3.5
[root@Python /]# mv /usr/bin/python /usr/bin/python2.6 [root@Python /]# ln -s /usr/local/python/bin/python3.5 /usr/bin/python
核对Python版本:
[root@Python /]# python -V Python 3.5.2
解决python升级后,YUM不能正常工作的问题:
#vi /usr/bin/yum
将文件头部的 #!/usr/bin/python 改成 #!/usr/bin/python2.6
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