PyQt GUI

[Helvin]

Hi experts!

I'm developing a GUI for a software using PyQT, and need 3D
visualization. Should I use PyOpenGL or VTK?
I understand that the PyQt package comes with a opengl module. What
else would I need? I think I need to download opengl. but how? where?
I have VTK and pyVTK installed, but I don't know how to use it in my
code, as when I run it, an error says it can't find the vtk module.

Help would be sooooo appreciated!
Helvin