CentOS 7升级Python到3.5后,我跟以前CentOS 6一样,在/usr/bin/python创建了一个指向Python 3的软连接,然后将/usr/bin/yum的顶部的:
!/usr/bin/python
改成了
!/usr/bin/python2.7
后,运行yum,还是出现了以下错误:
[root@vps ~]# yum -y install yum-priorities
Loaded plugins: fastestmirror, langpacks
Determining fastest mirrors
* base: ftp.iij.ad.jp
* epel: ftp.kddilabs.jp
* epel-debuginfo: ftp.kddilabs.jp
* epel-source: ftp.kddilabs.jp
* extras: ftp.iij.ad.jp
* updates: ftp.iij.ad.jp
File "/usr/libexec/urlgrabber-ext-down", line 28
except OSError, e:
^
SyntaxError: invalid syntax
File "/usr/libexec/urlgrabber-ext-down", line 28
except OSError, e:
^
SyntaxError: invalid syntax
File "/usr/libexec/urlgrabber-ext-down", line 28
except OSError, e:
^
SyntaxError: invalid syntax
File "/usr/libexec/urlgrabber-ext-down", line 28
except OSError, e:
^
SyntaxError: invalid syntax
File "/usr/libexec/urlgrabber-ext-down", line 28
except OSError, e:
^
SyntaxError: invalid syntax
Exiting on user cancel
```
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以前CentOS 6没这个问题的。
开了/usr/libexec/urlgrabber-ext-down看了下,发下他也使用了/usr/bin/python,于是跟前面一样,改为2.7,完成。
升级后 还有一个问题,gnome-tweak-tool 也就是优化工具打不开
[root@localhost applications]# find / -name gnome-tweak-tool
/usr/bin/gnome-tweak-tool
/usr/share/gnome-tweak-tool
[root@localhost applications]# vim /usr/bin/gnome-tweak-tool
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解决办法: gnome-tweak-tool 文件 #!/usr/bin/python换成 #!/usr/bin/python2.7 就可以了
yum-config-manager 文件同样出错
[root@localhost kwplayer-master]# whereis yum-config-manager
yum-config-manager: /usr/bin/yum-config-manager /usr/share/man/man1/yum-config-manager.1.gz
[root@localhost kwplayer-master]# vim /usr/bin/yum-config-manager
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解决办法同上: #!/usr/bin/python换成 #!/usr/bin/python2.7 就可以了