While yes, the HAT might not light up, unless I'm going to trap stdout for this, it's really annoying. There should be a flag to disable the warning (or env var, or whatever makes more sense) for when you know you're doing something that might not work.
https://github.com/pimoroni/unicorn-hat/blob/657deffc385895d43a81828c30355e5051cce6c7/library/UnicornHat/unicornhat.py#L236
While yes, the HAT might not light up, unless I'm going to trap stdout for this, it's really annoying. There should be a flag to disable the warning (or env var, or whatever makes more sense) for when you know you're doing something that might not work.