walking directory trees

walkdir.py

import os, fnmatch
import os.path

def all_files(root, patterns='*', single_level=False, yield_folders=False):
"""
Examine a directroy, or an entire directroy tree rooted in a certain 
directory.
"""
	# Expande patterns from semicolon-seperated string to list
	patterns = patterns.split(';')
	for path, subdirs, files in os.walk(root):
		if yield_folders:
			files.extend(subdirs)
		files.sort()
		for name in files:
			for pattern in patterns:
				if fnmatch.fnmatch(name, pattern):
					yield os.path.join(path, name)
					break
		if single_level:
			break

def list_files(root, patterns, single_level=False, yield_folders=False):
"""
Examine a directroy, or an entire directroy tree rooted in a certain 
directory.
"""
    return list(all_files(root, patterns,  single_level, yield_folders))