linux--- python3环境部署篇

我们在pycharm上都是自己设置的python3解释器的环境变量,使得代码能够正常执行!可是怎么能让我们的python代码在LINUX上跑起来呢? linux是内置python,可是内置的是python2哦,python2在2020年就不维护了,所以python3必然大趋所示,哈哈,还是说怎么部署python3环境吧!!!!

安装python3步骤---->直接上干货了

• 1.首先解决依赖环境,这个特别重要

  yum install gcc patch libffi-devel python-devel  zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel -y
  
  #直接复制执行

• 2.下载地址：https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tgz

  wget  https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tgz
  
  #直接执行

• 3.下载完了吧,是压缩包吧,那就痛快解压它

  tar -cvf  Python-3.6.2.tgz
  
  #解压后显示一个Python-3.6.2的目录/文件夹

• 4.开始编译安装

  1.首先进入Python-3.6.2文件夹    
  
       #   cd  Python-3.6.2
  
  2. #   ./configure --prefix=/usr/bin/python3  
  
  3.完毕后执行  # make
  
  4.继续       #make install

• 5.向PATH中添加路径: /usr/bin/python3/bin/python3

  方式1:
      vim ~/.bash_profile
  
      进来这个文件后在PATH=$PATH:$HOME/bin:
      变成 PATH=$PATH:$HOME/bin:/usr/bin/python3/bin
      然后wq! 退出
  
  方式2:
       执行  echo $PATH查到路径后,往最前面添加/usr/bin/python3/bin
          PATH='/usr/bin/python3/usr/bin/python3:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/root/bin:/usr/bin/python3/bin'
  
      vim /etc/profile 进入
      
       将PATH='/usr/bin/python3/usr/bin/python3:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/root/bin:/usr/bin/python3/bin'直接放在最下面就好
  
  # By default, we want umask to get set. This sets it for login shell
  # Current threshold for system reserved uid/gids is 200
  # You could check uidgid reservation validity in
  # /usr/share/doc/setup-*/uidgid file
  if [ $UID -gt 199 ] && [ "`/usr/bin/id -gn`" = "`/usr/bin/id -un`" ]; then
      umask 002
  else
      umask 022
  fi
  
  for i in /etc/profile.d/*.sh /etc/profile.d/sh.local ; do
      if [ -r "$i" ]; then
          if [ "${-#*i}" != "$-" ]; then
              . "$i"
          else
              . "$i" >/dev/null
          fi
      fi
  done
  
  unset i
  unset -f pathmunge
  
  PATH="/usr/bin/python3/usr/bin/python3:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin"
  
  wq!退出
  
  执行source /etc/profile    永久保存

• 重启X-shell 即可