#NEWLINE# def __add__( self , other ) : #NEWLINE# #INDENT# if ( other == 0 ) : #NEWLINE# #INDENT# other = Coordinate ( ) #NEWLINE# #UNINDENT# return Coordinate ( [ ( self . x + other . x ) , ( self . y + other . y ) , ( self . z + other . z ) , self . value ] )