I agree with you.. static type information reduces potential test cases which makes it more like unit tests than LOC which will impact the bug count negatively.

I agree with you.. static type information reduces potential test cases which makes it more like unit tests than LOC which will impact the bug count negatively.. but even though the author argues that the 'extra' Java code is type information, I think that's overly simplistic. Java also lacks mechanisms for re-use that languages like python have.. that increases LOC and redundancy in a way that I think will tend to affect the bug count negatively. In my experience, done right it's a bit of a wash. There's more potential cases to test in python.. but the tests are easier generally to write, and the code is more concise and easier to read. With pretty extensive experience at this point in both languages I wouldn't say I've experienced a significant difference in bug trends at all, frankly.