import glob


def getdefaultsubdirs(basedir):
    """Get all scene subdirs of a directory according to default naming scheme"""
    return sorted(glob.glob(
        basedir + ('/20[0-1][0-9]_[0-1][0-9]_[0-3][0-9]_'
                   '[0-9][0-9][0-9]_[0-2][0-9][0-6][0-9]')))