piston_generic_helper.py crashed with OSError in makedirs(): [Errno 17] File exists: '/home/username/.cache/software-center/piston-helper'

[Jim Raredon]

Ubuntu Software Center crashes after pressing the "Turn On Recommendations" button.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: software-center 5.1.11
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.94-0ubuntu1
Architecture: amd64
Date: Sun Mar 4 09:39:03 2012
ExecutablePath: /usr/share/software-center/piston_generic_helper.py
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/share/software-center/piston_generic_helper.py --datadir /usr/share/software-center/ RatingsAndReviewsAPI review_stats {"days":\ 9}
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/share/software-center/piston_generic_helper.py', '--datadir', '/usr/share/software-center/', 'RatingsAndReviewsAPI', 'review_stats', '{"days": 9}']
SourcePackage: software-center
Title: piston_generic_helper.py crashed with OSError in makedirs(): [Errno 17] File exists: '/home/username/.cache/software-center/piston-helper'
UpgradeStatus: Upgraded to precise on 2012-03-03 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Robert Roth (evfool)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug #936917, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.