#NEWLINE# def ifdel( self , iff ) : #NEWLINE# #INDENT# self . invalidate_cache ( ) #NEWLINE# new_routes = [ ] #NEWLINE# for rt in self . routes : #NEWLINE# #INDENT# if ( rt [ 3 ] != iff ) : #NEWLINE# #INDENT# new_routes . append ( rt ) #NEWLINE# #UNINDENT# #UNINDENT# self . routes = new_routes