How to not render lines?

I’m new to Panda3D and I am wondering if there’s a method to hide an object’s lines or not render lines in general.

If by the object’s lines, you mean the sharp edges on a polygon mesh, you can hide these by using the appropriate Normal settings in your modeling program and perhaps normal vector smoothing (there are quite a number of smoothing options available, this is just one).

If you want to hide an object altogether, .hide() usually works well: NodePath — Panda3D Manual

If not one of the above, could you clarify what lines you’re referring to, please?

By default, Panda doesn’t render models as wireframes, or with outlines, I believe.