Yeah, IFTTT came up when I was googling around about this. This isn't actually a request for something for myself, but an ask by someone else...and it needs to be extra-simple in UX terms: show button or two buttons, allow button press to signal pythonista or invoke pythonista.
Unfortunately, Apple seems to have removed the ability to show buttons of that nature on the Apple Watch when they bought Workflows and turned it into Shortcuts, now you can only invoke those via Siri, it seems...otherwise that would have been perfect.
I think this may be a case where just writing a super simple Swift-based app with a watchOS part to show the buttons is the simplest route.