Linux RedHat下安装Python2.7.pip.ipython环境.eclipse和PyDev环境 准备工作,源Python2.6备份: 根据which python具体目录而定,进行备份 mv /usr/local/bin/python cd /usr/local/bin/python2.6 或mv /usr/bin/python /usr/bin/python2.6 修改使用python2.6的程序配置,比如yum vim /usr/bin/yum #!/usr/bin/pytho