Error when trying to upgrade database ("object has no attribute 'rollback'", PostgreSQL)

[anonymous]

When trying to upgrade database after enabling voteplugin:

sp2043a tracproject # trac-admin . upgrade
/usr/lib/python2.6/site-packages/Trac-0.11-py2.6.egg/trac/util/__init__.py:21: DeprecationWarning: the md5 module is deprecated; use hashlib instead
  import md5
/usr/lib/python2.6/site-packages/MySQLdb/__init__.py:34: DeprecationWarning: the sets module is deprecated
  from sets import ImmutableSet
Traceback (most recent call last):
  File "/usr/bin/trac-admin", line 8, in <module>
    load_entry_point('Trac==0.11', 'console_scripts', 'trac-admin')()
  File "/usr/lib/python2.6/site-packages/Trac-0.11-py2.6.egg/trac/admin/console.py", line 1249, in run
    return admin.onecmd(command)
  File "/usr/lib/python2.6/site-packages/Trac-0.11-py2.6.egg/trac/admin/console.py", line 104, in onecmd
    rv = cmd.Cmd.onecmd(self, line) or 0
  File "/usr/lib/python2.6/cmd.py", line 219, in onecmd
    return func(arg)
  File "/usr/lib/python2.6/site-packages/Trac-0.11-py2.6.egg/trac/admin/console.py", line 1103, in do_upgrade
    if not self.__env.needs_upgrade():
  File "/usr/lib/python2.6/site-packages/Trac-0.11-py2.6.egg/trac/env.py", line 414, in needs_upgrade
    if participant.environment_needs_upgrade(db):
  File "build/bdist.linux-i686/egg/tracvote/__init__.py", line 142, in environment_needs_upgrade
  File "/usr/lib/python2.6/site-packages/Trac-0.11-py2.6.egg/trac/db/util.py", line 36, in __getattr__
    return getattr(self.cursor, name)
  File "/usr/lib/python2.6/site-packages/Trac-0.11-py2.6.egg/trac/db/util.py", line 36, in __getattr__
    return getattr(self.cursor, name)
AttributeError: 'psycopg2._psycopg.cursor' object has no attribute 'rollback'

Trac 0.11, VotePlugin 0.11, Psycopg2 2.0.11

[Tod Jiang]

yes, I got same problem.

[Ryan J Ollos]

Reassigning ticket to new maintainer.

[Ryan J Ollos]

Duplicate of #5245. Should be fixed with latest 0.11 version.