Thread - Demo Programs have threading design patterns.... added a new Trinket one.

[PySimpleGUI]

pip install psgdemos

Run the demo browser and search (F2) for stuff like start_thread or long_operation

You cannot make a PySimpleGUI call from a thread... the one exception is write_event_value which enables you to inject an event into a window's event loop.

I added this trinket that may help you see the latest way I do threading.

https://pysimplegui.trinket.io/demo-programs#/multi-threaded/multi-threaded-download-2022-design-pattern