In my previous note I created an animated GIF of how I used Emacs package pydor to run Python doctests, of course from Emacs. An animated GIF is a really good way to show how a tool like that works. I wouldn’t say that “an image says more than a thousand words”, but it does add a lot to a textual description.
The following two tools made it really easy to create the animated GIF:
Peek worked like a charm for my use case but unfortunately it is no longer maintained. According to the author, there are too many technical challenges that need to be solved for Peek to have a future, such as a move to Wayland and/or GTK3. As an alternative, he mentions Kooha so that’s a tool to keep in mind.