best package for a physical simulation?

[Terry Reedy]

<sittner at lkb.ens.fr> wrote in message 
news:60915.195.220.102.78.1169558458.squirrel at mailgate.phys.ens.fr...
| Hello everyone,
| i would like to use python to perform some simulation involving 
collisions
| of colloidal particles.
| which is the best package/engine to do that in python?
| thanks,

I would start with numpy/scipy and perhaps look at Scientific Python.

tjr