[IPython-dev] History in ipython1

Barry Wark barrywark@gmail....
Tue Jul 22 09:36:14 CDT 2008


On Mon, Jul 21, 2008 at 10:47 PM, Gael Varoquaux
<gael.varoquaux@normalesup.org> wrote:
> On Mon, Jul 21, 2008 at 06:32:30PM +0300, Ville M. Vainio wrote:
>> On Mon, Jul 21, 2008 at 7:00 AM, Gael Varoquaux
>> <gael.varoquaux@normalesup.org> wrote:
>
>> > number of past executions. Of course, we can always fallback on our feet
>> > by checking the length of the history, and resetting the cursor to that,
>> > but it seems simpler to count from the back. How to people feel about
>> > that?
>
>> It would seem simpler to have 0 as the first element, mostly to ensure
>> that item number 3 will always be the same item (i.e. stable
>> numbering).
>
> Hum, as you load a history, you prepend things to the beginning of the
> list, so item number 3 will stop being item number 3. I think of history
> as "item 3 lines ago".

It seems this is a frontend-specific issue. A notebook interface would
want to think of history counting forwards in time from 0 whereas a
terminal interface might want to think of history going backwards in
time from 0.

>
> Gaël
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