allow CI to fail if ruff or black is unhappy, and format source to make it pass

added 2 commits

• 6478fd09 - remove repeated import
• 949e8fe8 - line-length editing to make ruff and black happy

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mentioned in commit ae162c17

added 2 commits

• ae162c17 - execute all tests (functionality and style) at the same time
• c8078b35 - white space tidy up

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added 2 commits

• a277de9a - remove empty line
• a0aefbfe - line-wrapping to satisfy ruff

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marked this merge request as ready

changed title from Draft: allow CI to fail if ruff or black is unhappy to allow CI to fail if ruff or black is unhappy, and format source to make it pass

I have run the tests manually on main and on this branch, and all 5 tests pass in both cases.

So I think this is ready for review/merging.

@akarnad

requested review from @akarnad

resolved all threads

LGTM

merged

mentioned in commit d5465c9d