#NEWLINE# def __sub__( self , other ) : #NEWLINE# #INDENT# newaddr = AddressList ( None ) #NEWLINE# for x in self . addresslist : #NEWLINE# #INDENT# if ( not ( x in other . addresslist ) ) : #NEWLINE# #INDENT# newaddr . addresslist . append ( self ) #NEWLINE# #UNINDENT# #UNINDENT# return newaddr