[issue30942] Implement lwalk(levelwalk) function on os.py

[André Rossi Korol]

André Rossi Korol added the comment:

I forked cpython and implemented an lwalk function on os.py. The lwalk funtion behaves exactly like walk(), except that it recurses only to a certain level of depth that can be selected by the user. More information on the lwalk function can be found on "os.py" in my cpython fork.
I'd like to know what else I need to do in order to send a Pull Request.

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hgrepos: +370
Added file: http://bugs.python.org/file47018/os.py

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