prints the list members when the list is small and the length when it is
    large

def list_str_summarized(list_, list_name, maxlen=5):
    """
    prints the list members when the list is small and the length when it is
    large
    """
    if len(list_) > maxlen:
        return 'len(%s)=%d' % (list_name, len(list_))
    else:
        return '%s=%r' % (list_name, list_)