Description of problem:
 pykickstart doesn't load kickstart files

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

pykickstart 1.18-1.fc8

How reproducible:

ksvalidator any kickstart file

Steps to Reproduce:
1. Run ksvalidator:

[kanarip@elwood ~]$ ksvalidator fedora-7-gold.cfg
'NoneType' object has no attribute 'parse_args'

2.
3.
  
Actual results:
Python AttributeError

Expected results:
$? == 0

Additional info:
This also occurs when loading a kickstart file in pykickstart, or
system-config-kickstart for that matter.

Full traceback of a Revisor run:
Kickstart file not good.
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/revisor/load_kickstart.py", line 199,
in button_back_clicked
    self.store_options()
  File "/usr/lib/python2.5/site-packages/revisor/load_kickstart.py", line 166,
in store_options
    self.cfg.load_kickstart(self.cfg.kickstart_file)
  File "/usr/lib/python2.5/site-packages/revisor/cfg.py", line 493, in
load_kickstart
    self.ksobj.read_file(fn)
  File "/usr/lib/python2.5/site-packages/revisor/kickstart.py", line 59, in
read_file
    self.ksparser.readKickstart(fn)
  File "/usr/lib/python2.5/site-packages/pykickstart/parser.py", line 675, in
readKickstart
    self._stateMachine (lambda: fh.readline())
  File "/usr/lib/python2.5/site-packages/pykickstart/parser.py", line 553, in
_stateMachine
    self.handleCommand(lineno, args)
  File "/usr/lib/python2.5/site-packages/pykickstart/parser.py", line 407, in
handleCommand
    self.handler.dispatcher(args, lineno)
  File "/usr/lib/python2.5/site-packages/pykickstart/base.py", line 321, in
dispatcher
    self.commands[cmd].parse(args[1:])
  File "/usr/lib/python2.5/site-packages/pykickstart/commands/method.py", line
81, in parse
    (opts, extra) = op.parse_args(args=args)
AttributeError: 'NoneType' object has no attribute 'parse_args'