[Tutor] 2 vs 3

[Sithembewena Lloyd Dube]

This has turned into a very interesting discussion. Thank you to everyone
who's participating and sharing nuggets of information on 2 vs 3.

On Mon, Sep 7, 2015 at 1:58 PM, Steven D'Aprano <steve at pearwood.info> wrote:

> On Mon, Sep 07, 2015 at 11:01:00AM +0100, Alan Gauld wrote:
> > On 07/09/15 10:32, Laura Creighton wrote:
> > >In a message of Mon, 07 Sep 2015 10:16:16 +0100, Alan Gauld writes:
> > >
> > >>And of course if you are really moving to the v3 way of
> > >>doing things you should move to using the new string
> > >>formatting style.
> > >
> > >I don't think there is any great push to prefer the new style over
> > >the old style 'just because' when you are doing simple things.
> >
> > No 'big push' because there's too much historic code out there.
> > But I thought I'd read somewhere when it first came out that
> > the old style was deprecated? But I may be hallucinating! :-)
>
> When the format() method first came out, there was talk about
> deprecating % formatting, but it was only talk and never became
> official.
>
> > OTOH the new style brings enough benefits, especially in the
> > areas of dynamic formatting,  that I'd strongly suggest moving
> > to it if you are making the jump to v3 anyway!
>
> It's worth learning both formatting systems, even if you're just using
> Python 2. The format method started in 2.6, and 2.7 added the
> "autonumbering" feature that makes it much easier to use:
>
> "{0} {1} {2}".format(a, b, c)  # needed in 2.6
> "{} {} {}".format(a, b, c)  # 2.7 and up
>
>
> Having said that, I still don't know how to use format other than the
> basics, as most of the code I write has to be compatible with 2.4
> onwards.
>
>
>
> --
> Steve
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-- 
Kind regards,
Sithu Lloyd Dube