SVN Workbench fails on Ubuntu 13.04 python

[AndreK]

Fails with
EventScheduling<wb_frame.OnUpdateUiSpUpgrade>
Traceback (most recent call last):
  File "/usr/share/svn-workbench/wb_app.py", line 554, in __call__
    result = self.function( *args, **kwds )
  File "/usr/share/svn-workbench/wb_frame.py", line 1074, in OnUpdateUiSpUpgrade
    event.Enable( self.list_panel.list_handler.project_info.need_upgrade )
AttributeError: 'NoneType' object has no attribute 'project_info'

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: svn-workbench 1.6.6-2
ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4
Uname: Linux 3.8.0-15-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu5
Architecture: amd64
Date: Wed Apr 3 11:42:52 2013
EcryptfsInUse: Yes
ExecutablePath: /usr/share/svn-workbench/wb_main.py
InstallationDate: Installed on 2013-02-12 (49 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
InterpreterPath: /usr/bin/python2.7
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: svn-workbench
UpgradeStatus: Upgraded to raring on 2013-03-18 (15 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[francesco (massa80)]

Delete folder /home/[username]/.WorkBench e relaunch svn-workbench

[skurfur (dvd-regal)]

@francesco:
Deleting folder /home/[username]/.WorkBench did not work for me.

Works for me:

1. Copy /usr/share/svn-workbench/wb_frame.py as a backup

2. Edit file "/usr/share/svn-workbench/wb_frame.py", line 1074, added check if attribute is present before calling function:
if hasattr(self.list_panel.list_handler, 'project_info'):
                event.Enable( self.list_panel.list_handler.project_info.need_upgrade )

No more error. Yeh. :)

However, looks like this is some code to upgrade a legacy preferences for SVN WorkBench. Since I don't have an older preference file to upgrade, I can't test the case where the attribute exists.

I've only studied python programming a couple hours and this was my first time "programming" in python. Pretty clean, easy to understand language.

[Boris Barbulovski (bbarbulovski-gmail)]

skurfur fix worked for me.