#NEWLINE# def _prefixed_route_key( self , source ) : #NEWLINE# #INDENT# '\n        Returns the prefixed key, if prefix has been defined, for the given\n        route.\n        ' #NEWLINE# prefixed_key = 'routes:%s' #NEWLINE# if ( self . prefix is not None ) : #NEWLINE# #INDENT# prefixed_key = ( self . prefix + ':routes:%s' ) #NEWLINE# #UNINDENT# prefixed_key = ( prefixed_key % source ) #NEWLINE# return source