Public bug reported:

This code crashes in python3.2 but works perfectly in python2

def compare(model, row1, row2, user_data):
    sort_column, dummy = model.get_sort_column_id()
    value1 = model.get_value(row1, sort_column)
    value2 = model.get_value(row2, sort_column)
    return -1
    if value1 <  value2:
        return -1
    elif value1 == value2:
        return -1
    else:
        return -1 

model = Gtk.ListStore(str, str)
model.set_sort_func(1, compare, 'ddod')
model.set_sort_column_id(1, Gtk.SortType.ASCENDING)
model.append(['20', 'Newton'])
model.append(['20', 'Einstein'])
model.append(['20', 'Tesla'])
model.append(['25', 'Shuttleworth'])

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: python3-gi 3.2.0-3
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
Date: Fri Apr 20 19:54:01 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=sk_SK.UTF-8
 SHELL=/bin/bash
SourcePackage: pygobject
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: pygobject (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/986343

Title:
  liststore cannot use custom function for sorting

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