On Sat, Jul 14, 2012 at 10:16 PM, Nick Coghlan wrote:
> On Sun, Jul 15, 2012 at 9:18 AM, Benjamin Peterson
> wrote:
> >> Open questions
> >> ==
> >>
> >> There are two open questions for this PEP:
> >>
> >> * Should ``list`` expose a kwarg in it's constructor for supplying a
> length
On Sun, Jul 15, 2012 at 9:18 AM, Benjamin Peterson wrote:
>> Open questions
>> ==
>>
>> There are two open questions for this PEP:
>>
>> * Should ``list`` expose a kwarg in it's constructor for supplying a length
>> hint.
>> * Should a function be added either to ``builtins`` or some
On 7/14/2012 6:11 PM, Alex Gaynor wrote:
...
Various thoughts:
"This method is then used by various other functions (such +as ``map``)
to presize lists"
-- map no longer produces lists. This only makes sense in 3.x if you
mean that map can pass along the value of its inputs.
"Types can then
2012/7/14 Alex Gaynor :
>
>
> On Sat, Jul 14, 2012 at 4:18 PM, Benjamin Peterson
> wrote:
>>
>> 2012/7/14 Alex Gaynor :
>> >
>> > Proposal
>> >
>> >
>> > This PEP proposes formally documenting ``__length_hint__`` for other
>> > interpreter and non-standard library Python to implement.
>>
On Sat, Jul 14, 2012 at 4:21 PM, Alex Gaynor wrote:
>
>
> On Sat, Jul 14, 2012 at 4:18 PM, Benjamin Peterson
> wrote:
>>
>> 2012/7/14 Alex Gaynor :
>> >
>> > Proposal
>> >
>> >
>> > This PEP proposes formally documenting ``__length_hint__`` for other
>> > interpreter and non-standard lib
On Sat, Jul 14, 2012 at 4:18 PM, Benjamin Peterson wrote:
> 2012/7/14 Alex Gaynor :
> >
> > Proposal
> >
> >
> > This PEP proposes formally documenting ``__length_hint__`` for other
> > interpreter and non-standard library Python to implement.
> >
> > ``__length_hint__`` must return an in
2012/7/14 Alex Gaynor :
>
> Proposal
>
>
> This PEP proposes formally documenting ``__length_hint__`` for other
> interpreter and non-standard library Python to implement.
>
> ``__length_hint__`` must return an integer, and is not required to be
> accurate.
> It may return a value that is
Hi all,
I've just submitted a PEP proposing making __length_hint__ a public API for
users to define and other VMs to implement:
PEP: 424
Title: A method for exposing a length hint
Version: $Revision$
Last-Modified: $Date
Author: Alex Gaynor
Status: Draft
Type: Standards Track
Content-Type: text
