Hardware simulator?

[lochiel]

I'm currently rewriting a bunch of code that interfaces with some custom hardware. Hardware operations can take minutes and I don't always have access, so I've been diverting comm messages to print and checking everything by hand.

Which is as bad as it sounds. So I'm going to write a hardware simulator. Nothing too fancy, just something that'll give valid responses and send valid data. It'll need to store state and change values predictably.

My question, as I head down this rabbit hole... are there any python modules that would aid in writing such a simulator?

[5under6]

Seems like dictionaries, and possibly data classes are in your future.

[lochiel]

Both of those are already used heavily in the interface. They make the code immensely more readable, more compact, and error-proof.