os.path.walk arg

[Erik Max Francis]

Steven Taschuk wrote:

> It is fairly common, and makes sense in C; but it seems a little
> odd in Python.  If os.path.walk had no such provision, but I had a
> visitor function that needed a context object, then I'd just do
>         walk(path, lambda d,n: visit(context, d, n))
> or the like, and wouldn't think twice about it.

True, but still, it's nice having the functionality there.

I agree that in a true Pythonic sense, having a revamped os.path.walk
API which returns an iteratable object (probably a generator) makes a
lot more sense, as someone else pointed out; it seems a lot more elegant
to write

	for file in walk(dir):
	    ...

rather than

	walk(dir, lambda f: ...)

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