style: Fix invalid-escape-sequence (W605) #4409
Merged
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Ruff rule: https://docs.astral.sh/ruff/rules/invalid-escape-sequence/
Even though it fixes the invalid escape sequence, I still think that these stings are wrong, or don't do what we expect them to do.
For example, I would expect the string INPUT_TSV to have tabs, but there aren't, nor at the first commit of that file 7 years ago in 007fe9c.
The backslashes needed in imagery/i.pca/testsuite/test_pca.py seem weird to me too, as wouldn't there be some newlines somewhere?