#NEWLINE# def __init__( self , object = None , suffix = '' , topic = None ) : #NEWLINE# #INDENT# if ( not topic ) : #NEWLINE# #INDENT# assert object , 'object keyword is required when topic is empty' #NEWLINE# topic = ( '%s-%s-%s' % ( object . __class__ . _meta . db_table , object . pk , suffix ) ) #NEWLINE# #UNINDENT# self . topic = topic