python os.walk returns nothing

Question

I have a problem with using os.walk on Mac. If I call it from python terminal, it works perfect, but if I call it via a python script, it returns empty list. For example:

    import os

    path = "/Users/temp/Desktop/test/"
    for _ ,_ , files in os.walk(path):
        test = [my_file for my_file in files]

    print test

then, it prints:

    []

and I am pretty sure that the path does exists. Any idea what is the problem?

Answer 1

You most likely need to intantiate the test list outside the for loop, for this to work.

import os

path = "/Users/temp/Desktop/test/"
test = []
for _ ,_ , files in os.walk(path):
    test.extend([my_file for my_file in files])

print test