I might be wrong, but I don't think HOM is supposed to replace the functions of all the OPs. You could add UV attributes, but the method of actually mapping uvs and creating and assigning a shader isn't reproduced in HOM. I think the intent is that you can create the nodes you wish and alter their parameters with HOM. At least that's my understanding.
mmm Ok. But, I have searched in the houdini interface, and I have discovered that I can create Nodes with textures in the “/shop” place, and link this nodes with nodes from “/obj”. I don't know if this is correct. Can I create this “/shop” nodes with python?
My problem is that I need create a geometry only using python code.