Hi Peter,
> BUT anytime I add anything to the program the subscriber stops firing
> the LEDs.
‘Anything’ is very vague. Can you attach the output of
diff -u working.py broken.py
where you've done some simple change which breaks it, e.g...
> I tried to print to stdout in each function, but nothing happened.
...printing to stdout from one of the functions.
And also tell us how you're running in the program.
> Can one have an 'orphan' function in a Python program?
No.
> This morning my thought was to rewrite the whole subscriber program
> into a lot fewer function calls, which I don't fancy doing.
And wouldn't determine the problem which might simply reoccur. :-)
--
Cheers, Ralph.
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