Computer Algebra System

[Rodolphe Pollet]

Is anyone aware of a Computer Algebra System (CAS) ---
i.e a mathematical software that is able to derivate, integrate,
simplify, find limits, ... analytically --- in python ?
It should compete with Mathematica or Maple.

-- 
Rodolphe POLLET
Laboratoire de Chimie Theorique, Case 137,    |   pollet at lct.jussieu.fr
Universite Pierre et Marie Curie, T 22-23,    |   tel:   01.44.27.42.11
4, Place Jussieu, 75252 PARIS CEDEX 05, FRANCE|   Fax :  44.27.41.17