Tkinter MVP and Excel layout

Standard Tkinter apps often decay into unmaintainable codebases due to geometry plumbing (.grid(), .pack()) mixed with layout code, and tight coupling (heavy business logic bound directly to UI commands, freezing the interface). This mini-framework solves both issues by pairing a Data-Driven UI engine with a strict Model-View-Presenter (MVP) pattern. 1. Visual Declarative Layout (The Excel Engine) Instead of calculating coordinates in code, the UI layout is drawn visually as colored rectangle...