Description of problem:
when i run revisor-2.0.4.0-1.fc7 with one of our kickstart file i always got
this error, the reason can be that we use raid6 in the attached config:
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    File "/usr/lib/python2.5/site-packages/revisor/ready_screen.py", line 165,
in button_forward_clicked
        self.gui.displayBuildMedia()
    File "/usr/lib/python2.5/site-packages/revisor/gui.py", line 255, in
displayBuildMedia
        self.BuildMedia?.start()
    File "/usr/lib/python2.5/site-packages/revisor/build_media.py", line 69, in
start
        self.base.lift_off()
    File "/usr/lib/python2.5/site-packages/revisor/base.py", line 460, in lift_off
        self.buildInstallationMedia()
    File "/usr/lib/python2.5/site-packages/revisor/base.py", line 679, in
buildInstallationMedia
        f.write(self.cfg.kshandler.str())
    File "/usr/lib/python2.5/site-packages/pykickstart/base.py", line 215, in str
        retval += obj.str()
    File "/usr/lib/python2.5/site-packages/pykickstart/commands/raid.py", line
111, in str
        retval += raid.str()
    File "/usr/lib/python2.5/site-packages/pykickstart/commands/raid.py", line
55, in str
        return "raid %s %s %s\n" % (self.mountpoint, self._argsToStr(),
    File "/usr/lib/python2.5/site-packages/pykickstart/commands/raid.py", line
89, in _argsToStr
        retval = FC4_RaidData._argsToStr()
TypeError?: unbound method _argsToStr() must be called with FC4_RaidData
instance as first argument (got nothing instead) 
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see the reference:
https://hosted.fedoraproject.org/projects/revisor/ticket/195

Version-Release number of selected component (if applicable):

How reproducible:
always

Steps to Reproduce:
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Actual results:


Expected results:


Additional info: