Lacking anything anyone else says... the use case for keyword only
arguments (where they actually make the code better rather than simply
being different) is rather limited.
On 4/14/2015 13:40, Eric V. Smith wrote:
I'm working on adding a numeric_owner parameter to some tarfile methods
I'm working on adding a numeric_owner parameter to some tarfile methods
(http://bugs.python.org/issue23193),
In a review, Berker suggested making the parameter keyword-only. I agree
that you'd likely never want to pass just True, but that
numeric_owner=True would be a better usage.
But, I don't
At least asyncio uses keyword-only intensively.
On Tue, Apr 14, 2015 at 1:40 PM, Eric V. Smith e...@trueblade.com wrote:
I'm working on adding a numeric_owner parameter to some tarfile methods
(http://bugs.python.org/issue23193),
In a review, Berker suggested making the parameter
Hello,
On Tue, 14 Apr 2015 13:40:40 -0400
Eric V. Smith e...@trueblade.com wrote:
I'm working on adding a numeric_owner parameter to some tarfile
methods (http://bugs.python.org/issue23193),
In a review, Berker suggested making the parameter keyword-only. I
agree that you'd likely never
On 04/14/2015 02:11 PM, Zachary Ware wrote:
On Tue, Apr 14, 2015 at 1:06 PM, Steven D'Aprano st...@pearwood.info wrote:
On Tue, Apr 14, 2015 at 01:40:40PM -0400, Eric V. Smith wrote:
But, I don't see a lot of keyword-only parameters being added to stdlib
code. Is there some position we've
On 04/14, Eric V. Smith wrote:
But, I don't see a lot of keyword-only parameters being added to stdlib
code. Is there some position we've taken on this? Barring someone saying
stdlib APIs shouldn't contain keyword-only params, I'm inclined to
make numeric_owner keyword-only.
os.path and
Hello,
On Tue, 14 Apr 2015 15:40:32 -0400
Larry Hastings la...@hastings.org wrote:
On 04/14/2015 01:56 PM, Paul Sokolovsky wrote:
But newer parts of stdlib, e.g. asyncio, visibly overuse kw-only
args.
Overuse? asyncio? You mean that thing Guido just wrote last
year? The most practical
On 04/14/2015 01:40 PM, Eric V. Smith wrote:
I'm working on adding a numeric_owner parameter to some tarfile methods
(http://bugs.python.org/issue23193),
In a review, Berker suggested making the parameter keyword-only. I agree
that you'd likely never want to pass just True, but that
On 4/14/2015 2:14 PM, Guido van Rossum wrote:
Also, why do you think we added the 'lone star' syntax? :-)
Hint: Not because Guido is from Texas
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On Tue, Apr 14, 2015 at 1:56 PM Alexander Walters tritium-l...@sdamon.com
wrote:
Lacking anything anyone else says... the use case for keyword only
arguments (where they actually make the code better rather than simply
being different) is rather limited.
I disagree. For parameters not often
Also, why do you think we added the 'lone star' syntax? :-)
--
--Guido van Rossum (python.org/~guido)
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On Tue, Apr 14, 2015 at 01:40:40PM -0400, Eric V. Smith wrote:
But, I don't see a lot of keyword-only parameters being added to stdlib
code. Is there some position we've taken on this? Barring someone saying
stdlib APIs shouldn't contain keyword-only params, I'm inclined to
make numeric_owner
On Tue, Apr 14, 2015 at 1:06 PM, Steven D'Aprano st...@pearwood.info wrote:
On Tue, Apr 14, 2015 at 01:40:40PM -0400, Eric V. Smith wrote:
But, I don't see a lot of keyword-only parameters being added to stdlib
code. Is there some position we've taken on this? Barring someone saying
stdlib
I personally find that keyword only arguments make for nicer APIS. It also
makes subclassing easier because you are free to add new positional
arguments later. Especially for boolean arguments, I think keyword only is
a great API choice.
On Tue, Apr 14, 2015 at 2:06 PM, Steven D'Aprano
If you’re introducing a new parameter that is a boolean, making it kw-only is
generally accepted. Some people (myself included) would encourage you to do so.
Besides asyncio, there are already new arguments that are kw-only in many
modules, including configparser, unittest, xml.etree, xmlrpc,
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