Using and Implementing iterators with classes such as linked lists

Duncan Booth duncan at NOSPAMrcp.co.uk
Wed Dec 3 10:11:24 CET 2003


aahz at pythoncraft.com (Aahz) wrote in news:bqjh7n$of2$1 at panix3.panix.com:

> In article <Xns94445A429CFEduncanrcpcouk at 127.0.0.1>,
> Duncan Booth  <duncan at rcp.co.uk> wrote:
>>
>>def __iter__(self):
>>    def iterate(current):
>>        while current.next is not None:
>>            next = current.next
>>                yield current
>>            current = next
>>    return iterate(self)
> 
> Huh?  Why the extra function and complexity?
> 
> def __iter__(self):
>     current = self
>     while current is not None:
>         yield current
>         current = current.next

Because I was asleep.

-- 
Duncan Booth                                             duncan at rcp.co.uk
int month(char *p){return(124864/((p[0]+p[1]-p[2]&0x1f)+1)%12)["\5\x8\3"
"\6\7\xb\1\x9\xa\2\0\4"];} // Who said my code was obscure?




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