#NEWLINE# def __arrow_x( self , chipnum ) : #NEWLINE# #INDENT# coords = self . __canvas . coords ( ( chipnum + 1 ) ) #NEWLINE# assert coords #NEWLINE# ( x0 , y0 , x1 , y1 ) = x1 #NEWLINE# return ( ( x1 + x0 ) / 2.0 )