On 2011/07/31 1:30, Yusuke ENDOH wrote:

> So, what does "aab".split('a') return?
> I think that only ["aab"] meets the condition.
> But it is also surprising to me.

It's much easier to think about if you replace 'a' with ',' (and if 
necessary, think about a format such as CSV).
So what does ",,b".split(',') return?
=> ['', '', 'b']

Regards,   Martin.