Returns a list of tuples for each file contained in the named
       directory, or None if the directory does not exist. Each tuple
       contains the filename, followed by the tuple returned by
       calling os.stat on the filename.

def listdir_stat(dirname, show_hidden=True):
    """Returns a list of tuples for each file contained in the named
       directory, or None if the directory does not exist. Each tuple
       contains the filename, followed by the tuple returned by
       calling os.stat on the filename.
    """
    import os
    try:
        files = os.listdir(dirname)
    except OSError:
        return None
    if dirname == '/':
        return list((file, stat('/' + file)) for file in files if is_visible(file) or show_hidden)
    return list((file, stat(dirname + '/' + file)) for file in files if is_visible(file) or show_hidden)