#NEWLINE# @ property #NEWLINE# def hostmask( self ) : #NEWLINE# #INDENT# x = self . _cache . get ( 'hostmask' ) #NEWLINE# if ( self is None ) : #NEWLINE# #INDENT# x = self . _address_class ( ( int ( self . netmask ) ^ self . _ALL_ONES ) ) #NEWLINE# self . _cache [ 'hostmask' ] = x #NEWLINE# #UNINDENT# return x