On May 17, 10:39 am, Matus wrote:
> Hallo pylist,
>
> I searches web and python documentation for implementation of pushback
> iterator but found none in stdlib.
>
> problem:
>
> when you parse a file, often you have to read a line from parsed file
> before you can decide if you want that
Luis Alberto Zarrabeitia Gomez wrote:
> Quoting Mike Kazantsev :
>
>> And if you're "pushing back" the data for later use you might just as
>> well push it to dict with the right indexing, so the next "pop" won't
>> have to roam thru all the values again but instantly get the right one
>> from t
Quoting Mike Kazantsev :
> And if you're "pushing back" the data for later use you might just as
> well push it to dict with the right indexing, so the next "pop" won't
> have to roam thru all the values again but instantly get the right one
> from the cache, or just get on with that iterable unt
Somehow, I got the message off the list.
On Sun, 17 May 2009 17:42:43 +0200
Matus wrote:
> > Sounds to me more like an iterator with a cache - you can't really pull
> > the line from a real iterable like generator function and then just push
> > it back.
>
> true, that is why you have to implem
On Sun, 17 May 2009 16:39:38 +0200
Matus wrote:
> I searches web and python documentation for implementation of pushback
> iterator but found none in stdlib.
>
> problem:
>
> when you parse a file, often you have to read a line from parsed file
> before you can decide if you want that l
