如果本机安装了python2,尽量不要管他,使用python3运行python脚本就好,因为可能有程序依赖目前的python2环境,
比如yum!!!!!
不要动现有的python2环境!
正片开始—
- 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
- 下载Python3
https://www.python.org/downloads/ # wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tgz
- 安装python3
我个人习惯安装在/usr/local/python3(具体安装位置看个人喜好) 创建目录: # mkdir -p /usr/local/python3
解压下载好的Python-3.x.x.tgz包(具体包名因你下载的Python具体版本不不同⽽而不不同,如:我下载的是Python3.6.1.那我这里就是Python-3.6.1.tgz)
# tar -zxvf Python-3.6.1.tgz
- 进入解压后的目录,编译安装
# cd Python-3.6.1 # ./configure --prefix=/usr/local/python3 # make && make install
- 建立python3的软链
# ln -s /usr/local/python3/bin/python3 /usr/bin/python3
- 并将/usr/local/python3/bin加入PATH
# vim ~/.bash_profile # .bash_profile # Get the aliases and functions # if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup programs PATH=$PATH:$HOME/bin:/usr/local/python3/bin
export PATH按ESC,输入:wq回车退出。
修改完记得执行行下面的命令,让上一步的修改生效:
# source ~/.bash_profile
检查Python3及pip3是否正常可用:
# python3 -V Python 3.6.1 # pip3 -V pip 9.0.1 from /usr/local/python3/lib/python3.6/site-packages (python 3.6)
到此python3就算装好了!
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