walking along and processing files in directory in python

Question

I have huge data in a directory tree format like:
c:/user/name/class/std/section I to VI [all section has individual folder i.e. 6 folder in total and all folder h

Answer 1

Addressing Abhisek's comment on Aragon's solution:

import os folder = 'C:'

for root, dirs, files in os.walk(folder):
    for name in files:
        (base, ext) = os.path.splitext(name)
        if ext in "csv":
            print os.path.join(root, name)