Comment 2 for bug 1578051

The simple fix for that specific problem is https://github.com/jayvdb/pyflakes/commit/2ba836ad18168b9ba3f0d53273da217a9e4d1bb9
Build OK at https://travis-ci.org/jayvdb/pyflakes/builds/127720312

Feel free to pull it in and release a bug fix release if this is a serious problem.

However I would like a few more hours to dig further, to ensure there are no other corner cases.

fwiw, I believe there is an lp bug asking that both of these are an error, as `os.path` is unused, even though `os` is used. Need to find that bug also.