recursive dir

import os
import stat
 
def walktree (top = ".", depthfirst = True):
    names = os.listdir(top)
    if not depthfirst:
        yield top, names
    for name in names:
        try:
            st = os.lstat(os.path.join(top, name))
        except os.error:
            continue
        if stat.S_ISDIR(st.st_mode):
            for (newtop, children) in walktree (os.path.join(top, name), depthfirst):
                yield newtop, children
    if depthfirst:
        yield top, names
 
def test():
    for (basepath, children) in walktree("/etc",False):
        for child in children:
            print os.path.join(basepath, child)
 
if __name__ == '__main__':
    test()