Is "in" a keyword or word operator?

[edemaine]

According to https://docs.python.org/2.5/ref/keywords.html, in (and the whole regex in|is|and|or|not) should be considered keywords in Python, but they get recognized as "word operators". On the other hand, the CoffeeScript lexer treats in as a keyword. Could they be made consistent? (I have a preference for keyword, but would be happy either way.)

Context: I'm formatting a bunch of side-by-side examples of CoffeeScript and Python and I noticed that for ... in renders the in part differently in CoffeeScript (as keyword) than in Python (as word). Example: