Volume of CSG (constructive solid geometry) objects

[Charlie]

From python, I need to be able to create CSG objects and calculate their volume
(and from that their mass).

It looks like their are plenty of packages to create and display CSG objects,
however, I can not seem to find any API to get to the object's volume.

If anyone has any ideas/tips/pointers/etc., I would be very grateful.

Thanks,
Charlie