CentOS 7安装Python3.6过程(让linux系统共存Python2和Python3环境)
CentOS 7系统自带了python2,不过可以不用2版本,直接使用python3运行python脚本就可以,但是千万别去动系统自带的python2,因为有程序依赖目前的python2环境,比如yum,动了yum就无法运行了,其他有的程序也可能会受影响。明白了上面的,然后就来安装Python3.6:
https://www.bbsmax.com/A/ZOJPOvK2zv/
安装步骤:
1. 安装依赖环境
# yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
2.下载Python3
https://www.python.org/downloads/
| 1 | # wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz | 
3.安装python3
  包安装在/usr/local/Python3(具体安装位置看个人喜好)
  创建目录:
| 1 | # mkdir -p /usr/local/Python3 | 
解压下载好的Python-3.6.5.tgz包(具体包名因你下载的Python具体版本,我下载的是Python3.6.5这里就以Python-3.6.5.tgz为例)
| 1 | # tar -zxvf Python-3.6.5.tgz | 
4.进入解压后的目录,编译安装
如果编译安装过程有报错提示看我的另一个随笔写的解决办法http://www.cnblogs.com/shwee/p/9013851.html
| 1 2 | # cd Python-3.6.5# ./configure --prefix=/usr/local/Python3 | 
然后:make
| 1 | # make | 
接着:make install
| 1 | # make install | 
或者两步一起:make && make install
5.安装好了,建立python3的软链
| 1 | # ln -s /usr/local/Python3/bin/python3 /usr/bin/python3 | 
6.并将/usr/local/Python3/bin加入PATH
| 1 2 3 4 5 6 7 8 9 | # vim ~/.bash_profile# .bash_profile# Get the aliases and functionsif[ -f ~/.bashrc ]; then. ~/.bashrcfi# User specific environment and startup programsPATH=$PATH:$HOME/bin:/usr/local/Python3/binexport PATH | 
按ESC,输入:wq,按回车保存退出编辑。
修改完记得执行行下面的命令,让上一步的修改生效:
| 1 | # source ~/.bash_profile | 
检查Python3及pip3是否正常可用:
| 1 2 3 4 | # python3 -VPython 3.6.5# pip3 -Vpip 9.0.3from/usr/local/Python3/lib/python3.6/site-packages (python 3.6) | 



 
                
            
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浙公网安备 33010602011771号