Yield in a recursive function

Question

I am trying to do something to all the files under a given path. I don\'t want to collect all the file names beforehand then do something with them, so I tried this:

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Answer 1

Use os.walk instead of reinventing the wheel.

In particular, following the examples in the library documentation, here is an untested attempt:

import os
from os.path import join

def hellothere(somepath):
    for root, dirs, files in os.walk(somepath):
        for curfile in files:
            yield join(root, curfile)


# call and get full list of results:
allfiles = [ x for x in hellothere("...") ]

# iterate over results lazily:
for x in hellothere("..."):
    print x