Python Trajectory Module?

[squishywaffle at gmail.com]

Greetings,

I was wondering if there was a python Module/Library out there that
handles some trajectory/physics stuff like moving an object along a
straight path in an X,Y 2D (or 3D) plane or calculating parabolic
arcs. I'd really settle for just the moving of an object along a
straight line.

I know it's not terribly difficult to implement this on your own, but
I'd rather not re-invent the wheel if someone else already did a good
job of it the first time.

Thanks!