Comment # 10 on bug 902407 from Rahim Barbamas

Exception in thread Thread-3:
Traceback (most recent call last):
  File "/usr/lib64/python2.7/threading.py", line 810, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/site-packages/cupshelpers/openprinting.py", line 54,
in run
    self.callback (403, self.user_data, None)
  File "/usr/lib/python2.7/site-packages/cupshelpers/openprinting.py", line
163, in parse_result
    callback (status, user_data, result)
  File "/usr/share/system-config-printer/newprinter.py", line 3267, in
openprinting_printers_found
    print traceback.extract_tb(printers[2], limit=None)
TypeError: 'NoneType' object has no attribute '__getitem__'