centos7.3中python2.7更新到python3.6問題

更新後yum無法使用，報錯如下 File "/bin/yum", line 30 except KeyboardInterrupt, e: ^ SyntaxError: invalid syntax

File "/usr/libexec/urlgrabber-ext-down", line 28 except OSError, e: ^ SyntaxError: invalid syntax

解決方法 修改以下三個檔案 /usr/bin/yum /usr/libexec/urlgrabber-ext-down /usr/bin/yum-config-manager

将開頭的#!/usr/bin/python改為#!/usr/bin/python2.7