abrt 1.0.9 detected a crash.

architecture: i686
cmdline: python /usr/bin/mercurial-convert-repo
component: mercurial
executable: /usr/bin/mercurial-convert-repo
kernel: 2.6.32.14-127.fc12.i686.PAE
package: mercurial-1.5.3-1.fc12
reason: posixpath.py:311:normpath:AttributeError: 'NoneType' object has no attribute 'startswith'
release: Fedora release 12 (Constantine)

backtrace
-----
posixpath.py:311:normpath:AttributeError: 'NoneType' object has no attribute 'startswith'

Traceback (most recent call last):
  File "/usr/bin/mercurial-convert-repo", line 27, in <module>
    convert.convert(u, src, dest, revmapfile, **opts)
  File "/usr/lib/python2.6/site-packages/hgext/convert/__init__.py", line 238, in convert
    return convcmd.convert(ui, src, dest, revmapfile, **opts)
  File "/usr/lib/python2.6/site-packages/hgext/convert/convcmd.py", line 370, in convert
    dest = hg.defaultdest(src) + "-hg"
  File "/usr/lib/python2.6/site-packages/mercurial/hg.py", line 92, in defaultdest
    return os.path.basename(os.path.normpath(source))
  File "/usr/lib/python2.6/posixpath.py", line 311, in normpath
    initial_slashes = path.startswith('/')
AttributeError: 'NoneType' object has no attribute 'startswith'

Local variables in innermost frame:
path: None