There is a Python module that interfaces to MATLAB called
PyMat. However the project has not been updated for a while, so it might now work with Python 2.4.
There is also a Python module for scientific computing called
NumPy.
Vizard supports VRML 2.0 models, so if MATLAB can export to that format then you should be able to view it in Vizard. Vizard supports many other formats as well, see the website or documentation for a list.