[pygame] Center a display rect on screen

[Mark Halegua <phantom21@xxxxxxxxxxxxxx>]

I want to center a rect on the screen.  I know the formula for doing this 
based on the size of the rect and the screen resolution, but don't know how 
to specify where the rect starts on the screen. 

I've looked at the documentation, but don't see how to do this.

this code is what I'm using to create the windows I want, and it works.

Anyone know how to specify the start position of the upper left corner, or any 
part?  Or point me to the documentation where I can read it for myself?

Thanks

Mark