Python3 与 Python2共存

2020-12-13 03:30

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标签:code   dev   ssl   python2   pen   conf   ext   make   line   

Python3 与 Python2共存
  1. 查看当前python版本

    python --version
  2. 备份python

    which python
    mv /usr/bin/python /usr/bin/python.bak
  3. 下载安装更新python3

    wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tar.xz
    tar -xvJf  Python-3.6.2.tar.xz
  4. 安装关联程序,安装编译python3

    yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make
    cd Python-3.6.2
    ./configure prefix=/usr/local/python3
    make && make install
    ln -s /usr/local/python3/bin/python3 /usr/bin/python
  5. 查看python版本

    python --version
  6. 修改相关执行程序python版本

    vi /usr/bin/yum
    把#! /usr/bin/python修改为#! /usr/bin/python2
    vi /usr/libexec/urlgrabber-ext-down 
    文件里面的#! /usr/bin/python 也要修改为#! /usr/bin/python2

Python3 与 Python2共存

标签:code   dev   ssl   python2   pen   conf   ext   make   line   

原文地址:https://blog.51cto.com/9406836/2412785


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