Yum update failing with Python error?

Hey all,
Having a strange issue trying to update my FreePBX system.
Noticed my updates having run in a while, in the UI its saying

Unable to run ‘yum check-updates’, can’t check for updates

I figured no big deal, ill just go try to run yum update manually, but I’m presenting with a strange python error that I’ve never seen before.

[[email protected] ~]# yum update
Traceback (most recent call last):
File “/usr/bin/yum”, line 4, in
import yum
File “/usr/lib/python2.7/site-packages/yum/init.py”, line 59, in
import config
File “/usr/lib/python2.7/site-packages/yum/config.py”, line 30, in
from parser import ConfigPreProcessor, varReplace
File “/usr/lib/python2.7/site-packages/yum/parser.py”, line 4, in
import urlgrabber
File “/usr/lib/python2.7/site-packages/urlgrabber/init.py”, line 55, in
from grabber import urlgrab, urlopen, urlread
File “/usr/lib/python2.7/site-packages/urlgrabber/grabber.py”, line 2291
SyntaxError: Non-ASCII character ‘\x96’ in file /usr/lib/python2.7/site-packages/urlgrabber/grabber.py on line 2291, but no encoding declared; see http://www.python.org/peps/pep-0263.html for details

I’ve tried running yum clean all but also a python error. Not sure what’s going on, tried searching the errors and found nothing related to FreePBX… any thoughts?

EDIT: I also cant run a backup, it fails with a mysql connect error. The scheduled backups also have not been running, presumably because of whatever is causing these errors - so I’m paranoid about rebooting the system now (I do have very old backups, but its in a live environment so an up to date backup would be nice)

Possibly the file was corrupted by a hardware error or failed update.

My system shows:
-rw-r--r-- 1 root root 96523 Mar 31 2020 grabber.py
The lines 2290-2292 are:

            if opts.tries < retry and ug_err.errno in opts.retrycodes:
                if ug_err.errno < 0 and opts.retry_no_cache:
                    opts.no_cache = True

Hmm ok ive definitely got a different size and much older version

-rw-r–r-- 1 root root 96520 Oct 30 2018 grabber.py

If I go to line 2290 I get jibberish!

        if opts.tries < retry and ug_err.errno in opts.retrycodes:
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for meter in meters:

Could you post your grabber.py up to “meter.end()” and ill just try replacing, or better yet, post your whole grabber.py and ill just backup and replace my version :slight_smile:

AHA! I was able to fix this, thanks to you pointing out about the file corruption!
Replaced the corrupt grabber.py with the latest version on github, which then present with a missing dependency for “six”.
Installed pip to install the six module and now yum update is running!
Thanks so much for your help!

My (older) version, if you need it:
grabber.tgz (26.0 KB)

I noticed that the first corrupted character in the file is at index 0x15000, likely the start of a cluster.
Run fsck on this file system!

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