Le 29/07/2018 à 08:02, Steven D'Aprano a écrit :
On Sun, Jul 29, 2018 at 12:49:13PM +1200, Greg Ewing wrote:
Abe Dillon wrote:
others countering that `person.name <http://person.name>` is not how
periods are used in natural languages, so using other symbols in
unintuitive ways is perfectly fine.
Dots have been used for attribute access in so many languages
for so long that it has become the normal and expected syntax
to use. ?. is much more recent. Maybe in another 30 years, if
it has stood the test of time, it could be argued for on the
basis of familiarity, but not now.
You're talking like the syntax is used only by a handful of experimental
languages with a total user-base measured in the dozens.
?. is used by some of the most commonly used languages in the world,
such as C++, Objective C and PHP, as well as up-and-coming "cool"
languages getting lots of industry buzz, like Swift and Dart.
Its certainly more familiar now than Python's slicing syntax was when
Python first started.
But it's certainly less familiar than using 'foo++' and '++foo', but
we're still writing 'foo += 1'. So familiarity in other languages is not
the only point (alos, I'm convinced that if we were making a poll with
average and advanced users of these languages about what these syntax
were doing, a big proportion wouldn't know).
I believe the evolution should be done if the benefice are big enough
(which I doubt, but I don't use Python in all the ways possible), not
because others do it (whatever their reasons were). Then, when we know
there's definitely a need to solve a problem, the solution should be
chosen (??, but anything else could enter the discussion).
Here, we're mixing arguments about (and I confess I've done it too):
- how usefull it would be to have a solution to this problem
- if it should be solved by Python's syntax or by libraries (if it may
be done, and if it may not, how spread are the use cases that can't be
done this way)
- if other languages support something like that, if some are, how well
this was accepted and if it's getting used in new code
- the proposed syntax itself
_______________________________________________
Python-ideas mailing list
Python-ideas@python.org
https://mail.python.org/mailman/listinfo/python-ideas
Code of Conduct: http://python.org/psf/codeofconduct/
