rectangle layout algorithm?

[Richard Taylor]

Hi

I need an algorithm to layout a collection of rectangles (images) within a
bounding rectangle (sheet of paper). 

I feel sure that I am not the first person faced with this problem :-) 

Does anyone know of a Python library that provides such a capability?

(Actually building the composite image is not a problem, I am going to use
PIL to do that. It is knowing where to place the images that I need to
solve.)

Many thanks.

Richard