Dear PyGui is a simple to use (but powerful) Python GUI framework. Dear PyGui provides a wrapping of Dear ImGui which simulates a traditional retained mode GUI (as opposed to Dear ImGui's immediate mode paradigm).
Ranked in these QuestionsQuestion Ranking
Pro Easy to use
Even while it's in beta, there's a ton of stuff that can be done with this framework.
Pro Helpful and responsive community
Pro Great performance
It's fast and responsive due to being written in C++, using the GPU and it is asynchronous by default.
Pro Smooth and easy to scale with a project
Pro Permissive MIT license
Pro Open source
Pro No GUI lag
GUI and Python API run at separate thread automatically!