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---

  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/
    # wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tgz

    3.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

    4.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

    5.建立python3的软链

    # ln -s /usr/local/python3/bin/python3 /usr/bin/python3

    6.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!

Last modification:December 16th, 2020 at 04:44 pm