of the codebases checked yep (20 of 666 checked). Bear in mind only 28% of codebases actually use built-in unittest package that this gotcha is affected by, so

of the codebases checked yep (20 of 666 checked). Bear in mind only 28% of codebases actually use built-in unittest package that this gotcha is affected by, so really it's 20 of 28% of 666 aka 10% ... but that claim would be hard to justify by folks that dig stats.