find files and folders recursively in Python Using glob and iglob.

Python 3.5+

Starting with Python version 3.5, the glob module supports the "**" directive (which is parsed only if you pass recursive flag):

import glob

for filename in glob.iglob('src/**/*.c', recursive=True):
    print(filename)

If you need an list, just use glob.glob instead of glob.iglob.

Python 2.2 to 3.4

For older Python versions, starting with Python 2.2, use os.walk to recursively walk a directory and fnmatch.filter to match against a simple expression:

import fnmatch
import os

matches = []
for root, dirnames, filenames in os.walk('src'):
    for filename in fnmatch.filter(filenames, '*.c'):
        matches.append(os.path.join(root, filename))

Python 2.1 and earlier

For even older Python versions, use glob.glob against each filename instead of fnmatch.filter.