def validate_bug_tracker_base_hosting_url(input_url):
 try:
  (input_url % ())
 except TypeError:
  raise ValidationError([(_(u"The URL '%s' is not valid because it contains a format character. For bug trackers other than 'Custom Bug Tracker', use the base URL of the server. If you need a '%%' character, prepend it with an additional '%%'.") % input_url)])

def validate_bug_tracker_base_hosting_url ( input_url ) : try : ( input_url % ( ) ) except TypeError : raise ValidationError ( [ ( _ ( u"The URL '%s' is not valid because it contains a format character. For bug trackers other than 'Custom Bug Tracker', use the base URL of the server. If you need a '%%' character, prepend it with an additional '%%'." ) % input_url ) ] )
check that hosting service bug urls dont contain %s .