> Interesting. So it would flag this code? > > for _ in range(5): next(f) # skip five lines
As of at least recent versions (I have 2.1.1 in my Conda install at home) It seems to properly accept "_" as a variable name, even when not used. It also seems to accept any variable name as a loop index. Here's a silly function which demonstrates current behavior: def skipper(filename): f = open(filename) _ = filename.lower() _up = filename.upper() filename.title() for i in range(5): next(f) return f The assignment to "_" is accepted, as is the use of "i" as the loop variable. The assignment to _up is flagged though. It also doesn't complain about the ignored return value for filename.title(). (In all fairness, I don't think pyflakes was ever held up as a "deep" analyzer of Python source, so couldn't be expected to know that string's title method operates without side effect.) So, it's improving. Skip -- https://mail.python.org/mailman/listinfo/python-list