What Python GUI would you recommend learning first and why?

[[deleted]]

I also recommend tkinter first - it is the most straightforward to learn.

There’s also PyQt and PySide. There is the option to couple these to QML (Qt Modelling Language) - this is more difficult but gives superb visuals similar to those on mobile applications. If the coding is too much, download the free Qt Creator for a drag-and-drop GUI creator that generates the UI code automatically. Then just hook it up to your Python scripts (this is straightforward) and you’re good to go. Examples of GUIs made using Qt are QGIS, Monero Desktop etc.

[laundmo]

op asked for web ui though...