two or more whitespace regular expression?

[Terry Reedy]

"eugene kim" <eugene1977 at hotmail.com> wrote in message
news:am12a3$qo0$1 at newsreader.mailgate.org...
> i used this..
>
> words = string.split(line, '['+string.whitespace
> +']'+'['string.whitespace+']+')
>
> which didn't work..
> thanks

What weres 'line' and 'words'?