A good collision engine for python?

[crazyfuturamanoob]

I don't know python or trigonometry well enough that I could make a good collision detection code myself, so I decided to use an existing one.

The problem is: what collision detection module goes with pys60? I am looking for a collision detection module, that contains functions to test
if two lines intersect and if a point is in a triangle, and that I could use with pys60. So it must be pure python.

Thanks for all replies, even if they don't help at all.