title: Python physics library?
body: <p>Are there any good up-to-date physics libraries for Python that are for Linux? I'm just getting into Python using PyGame, but PyGame's lack of a physics library isn't cool. I spent about two hours trying to find a good  physics library but it's like trying to grab oil; I can't seem to do it.</p>
  
  <p>I barely need a physics engine at all; all I want to do is program an object to 'jump' up and then fall back to the ground. There seems to be some simple collisions going on (which PyGame can handle, I think) but it's the actual jump calculation that's stumping me. If it turns out that there aren't any good ususable physics libraries, the problem seems simple enough that I might just try to find a basic acceleration equation and a gravity equation and try to apply those... I'd like to avoid having to do that, though.</p>
  
  <p>Thanks for any help.</p>