[pygame] Fw: rect.center.. confusion over result.. or bad result?

[Lin Parkh]

I think I am confused about what center of a rectangle is becaue I am getting 
an "odd" (to me) result.
Specifically:
#I define a rectangle:
tes =pygame.Rect(0,44,200,85)

#now i would expect the center of this rectangle to be be 
((200+0)/2),(44+85)/2)) in other words (100, 64) instead I get:

tes.center


(100, 86)

Where did the 86 come from????
Please advise. Thanks for any help!