> I've just noticed that os.walk() silently skips unreadable > directories. I think this is surprising behaviour, which at least > should be documented (there is a comment explaining this is source, > but nothing in the doc string). Is it too late to add an optional > callback argument to handle unreadable directories, so the caller > could log them, raise an exception or whatever? I think the default > behaviour should still be to silently ignore them, but it would be > nice to have a way to override it. Ignoring is definitely the right thing to do by default, as otherwise the existence of a single unreadable directory would cause your entire walk to fail. What's your use case for wanting to do something else? --Guido van Rossum (home page: http://www.python.org/~guido/)
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