abrt 1.0.7 detected a crash.

architecture: i686
cmdline: /usr/bin/python /usr/bin/mw-render
component: python-mwlib
executable: /usr/bin/mw-render
kernel: 2.6.31.12-174.2.22.fc12.i686
package: python-mwlib-0.11.2-3.20090522hg2956.fc12
reason: pkg_resources.py:524:resolve:DistributionNotFound: twisted>=8.2
release: Fedora release 12 (Constantine)

backtrace
-----
pkg_resources.py:524:resolve:DistributionNotFound: twisted>=8.2

Traceback (most recent call last):
  File "/usr/bin/mw-render", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 2562, in <module>
    working_set.require(__requires__)
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 626, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 524, in resolve
    raise DistributionNotFound(req)  # XXX put more info here
DistributionNotFound: twisted>=8.2

Local variables in innermost frame:
dist: None
to_activate: [mwlib 0.11.3.dev (/usr/lib/python2.6/site-packages)]
req: Requirement.parse('twisted>=8.2')
requirements: [Requirement.parse('python-dateutil>=1.4.1'), Requirement.parse('flup>=1.0'), Requirement.parse('odfpy==0.9'), Requirement.parse('pyparsing>=1.4.11')]
processed: {Requirement.parse('mwlib==0.11.3.dev'): True}
env: <pkg_resources.Environment object at 0xb7514a2c>
installer: None
self: <pkg_resources.WorkingSet object at 0xb750dfec>
best: {'twisted': None}

How to reproduce
-----
1.run mw-render on the command line
2.
3.