[Guido van Rossum]
But if I had to do it over again, I wouldn't have added walk() in the current form. I often find it harder to fit a particular program's needs in the API offered by walk() than it is to reimplement the walk myself.
I do not much use `os.path.walk' myself. It is so simple to write a small walking loop with a stack of unseen directories, and in practice, there is a wide range of ways and reasons to walk a directory hierarchy, some of which do not fit nicely in the current `os.path.walk' specifications.
That's why I'm concerned about adding to it.
The addition of generators to Python also changed the picture somewhat, in this area. It is often convenient to use a generator for a particular walk. -- François Pinard http://www.iro.umontreal.ca/~pinard