When comparing pyglet vs ursina, the Slant community recommends ursina for most people. In the question“What are the best game engines for Python?” ursina is ranked 2nd while pyglet is ranked 7th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro 3D support
Since pyglet is so tightly woven with OpenGL it allows the support of drawing in 3D.
Pro Cross-platform
Works with Windows, Linux, and OS X.
Pro Written in pure Python
A small advantage, but being a core Python developer, it may be the best to stick to the roots and develop with pyglet as it is able to compile using other Python interpreters.
Pro Supports 3D
Pro Super easy to learn
No complicated stuff, just super easy. Anybody who knows Python and nothing else could make a game using Ursina.
Pro Great community
The Ursina Engine Discord server is very helpful.
Pro Great documentation
You can find anything you need in the docs.
Pro Great future
New and Blooming Ursina, derived from Panda3D has some amazing potential.
Pro Open Source and moddable
The full source code is on Github, you can modify it easily and make your own game engine.
Cons
Con Small community/popularity
There is a decent amount of documentation and API to go along with pyglet, but in terms of community support there seems to be very little.