The problem is this.
At the beginning of /usr/share/software-center/softwarecenter/config.py,
it imports either configparser or ConfigParser based on what will
import, apparently based on the incorrect belief that "configparser" is
for Python3 while "ConfigParser" is Python2.7:
try:
from configparser import SafeConfigParser
SafeConfigParser # pyflakes
except ImportError:
from ConfigParser import SafeConfigParser
So the background is that Python2.x has "ConfigParser" and Python3 has
"configparser". Yes, that's kind of weird. In Python3, they decided to
standardize on lower-case package names, so ConfigParser became
configparser.
The problem is, Software Center's developers didn't realize that the
classes also changed somewhat. Example:
Python 2.7.3 (default, Sep 26 2012, 21:51:14)
[GCC 4.7.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import configparser, ConfigParser
>>> issubclass(configparser.SafeConfigParser, object)
True
>>> issubclass(ConfigParser.SafeConfigParser, object)
False
Software Center is crashing because ConfigParser and configparser are
not identical and apparently, it was just assumed that they were. What
I'm not sure is why this only affects a handful of people. Perhaps our
ppa's have forced an upgrade in Python that Software Center wasn't
tested against. At any rate, here's a patch.
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https://bugs.launchpad.net/bugs/1038429
Title:
update-software-center crashed with order (MRO) for bases
SafeConfigParser, object in __new__()
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