    Boolean parameters are the classic problem that keyword-only     parameters solve.� It forces the caller to provide context for the     parameter, solving the mystery-meat API problem of

tarfile.extractall(".", None, True)

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 definition I've heard for the word     "pythonic" is "code like Guido writes".


    /arry
   ">

(original) (raw)

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
"numeric_owner=True" would be a better usage.

Boolean parameters are the classic problem that keyword-only
parameters solve.� It forces the caller to provide context for the
parameter, solving the mystery-meat API problem of

tarfile.extractall(".", None, True)

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 definition I've heard for the word
"pythonic" is "code like Guido writes".

/arry