How to traverse through the files in a directory?

Question

I have a directory logfiles. I want to process each file inside this directory using a Python script.

for file in directory:
      # do something

How do I do this?

Answer 1

With os.listdir() or os.walk(), depending on whether you want to do it recursively.

Answer 2

In Python 2, you can try something like:

import os.path

def print_it(x, dir_name, files):
    print dir_name
    print files

os.path.walk(your_dir, print_it, 0)

Note: the 3rd argument of os.path.walk is whatever you want. You'll get it as the 1st arg of the callback.

In Python 3 os.path.walk has been removed; use os.walk instead. Instead of taking a callback, you just pass it a directory and it yields (dirpath, dirnames, filenames) triples. So a rough equivalent of the above becomes

import os

for dirpath, dirnames, filenames in os.walk(your_dir):
    print dirpath
    print dirnames
    print filenames