Advice needed: large OpenGL + Widgets Project for Molecular Graphics

[Rick Muller]

anton at vredegoor.doge.nl (Anton Vredegoor) wrote in message > 
> VPython [1] seems to combine all requirements, OpenGl and NumPy
> integration, easy to install and use, and at least in my case it makes
> one very enthusiastic about 3-d programming in Python. 
> 

I'm a long-time fan of VPython, but I didn't think it provided
widgets. Can I use some widget set to make buttons to control
applications?