print directory contents

import os

def file_list(dir):
    basedir = dir
    subdir_list = []
    for item in os.listdir(dir):
        fullpath = os.path.join(basedir,item)
        if os.path.isdir(fullpath):
            subdir_list.append(fullpath)
        else:
            print fullpath

    for d in subdir_list:
        file_list(d)

file_list('/dir')