Playing Lego With Python - Building More Complex Brick Piles

I'm  now adding increasing  variety and number of bricks to my brick piles - I have included both bricks and plates and the bricks currently remain the "even" flavour of bricks - so 2x2, 2x4 etc.

The problem now is the orientation of the all bricks - they are all pointing in the same direction.  So now I need to think about rotating the bricks...