I’ve made a final round of updates to PEP 642 and submitted it to the
Steering Council for consideration alongside PEP 634.
As usual, the rendered version can be found here:
https://www.python.org/dev/peps/pep-0642/
There's a Discourse thread at
https://discuss.python.org/t/pep-642-v3-explicit-pa
> On 3 Jan 2021, at 15:21, Nick Coghlan wrote:
>
> I’ve made a final round of updates to PEP 642 and submitted it to the
> Steering Council for consideration alongside PEP 634.
>
> As usual, the rendered version can be found here:
> https://www.python.org/dev/peps/pep-0642/
>
> There's a Disc
On Sun, 3 Jan 2021 16:19:01 +
Barry Scott wrote:
> >
> > I’ll also quote the example match statement from the PEP abstract,
> > which extracts “host” and “port” details from a 2 item sequence, a
> > mapping with “host” and “port” keys, any object with “host” and “port”
> > attributes, or a “h
On Sun, 3 Jan 2021 at 16:26, Barry Scott wrote:
> I read the above and believe I know what it meant without needing to read the
> PEP in detail.
> I like that a lot.
Personally, I read it and was horribly confused. I worked out most of
it, but I would *not* count it as intuitive or natural.
Spe
On 1/3/21 8:50 AM, Paul Moore wrote:
Personally, I read it and was horribly confused.
case object{.host as host, .port as port}:
pass
Leading periods is a big no-go for me, for all the reasons listed in the
original thread.
I have not read the full PEP, so take this
Hello,
On Sun, 3 Jan 2021 16:50:33 +
Paul Moore wrote:
> On Sun, 3 Jan 2021 at 16:26, Barry Scott
> wrote:
> > I read the above and believe I know what it meant without needing
> > to read the PEP in detail. I like that a lot.
>
> Personally, I read it and was horribly confused. I worked
On Mon, 4 Jan 2021, 2:19 am Barry Scott, wrote:
>
> I quickly read 642 v3 and missed an explanation about why the syntax to
> match a string object is
> str{} and not str. Are you saying that I MUST use {} so that when case is
> parsed its clear that its a class
> with no constraints?
>
Yes. "s
On Mon, 4 Jan 2021, 2:50 am Paul Moore, wrote:
> On Sun, 3 Jan 2021 at 16:26, Barry Scott wrote:
> > I read the above and believe I know what it meant without needing to
> read the PEP in detail.
> > I like that a lot.
>
> Personally, I read it and was horribly confused. I worked out most of
> i
On Mon, 4 Jan 2021, 4:34 am Ethan Furman, wrote:
> On 1/3/21 8:50 AM, Paul Moore wrote:
>
> > Personally, I read it and was horribly confused.
>
> >> case object{.host as host, .port as port}:
> >> pass
>
> Leading periods is a big no-go for me, for all the reasons listed in
I've been exploring dataclasses for a few months now and they've proven to be
very useful.
The only downside is that there's not a simple way to use descriptors.
Descriptors only work on class attributes (as per the docs:
https://docs.python.org/3/howto/descriptor.html#closing-thoughts). This m
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