> > Here's a related but more complicated wish: define a function in such
> > a way that certain parameters *must* be passed as keywords, *without*
> > using *args or **kwds. This may require a new syntactic crutch.
>
> While a number of people have submitted possible use cases for this
> feat
Greg Ewing wrote:
> Nick Coghlan wrote:
>
>> This is exactly what I was trying to get at when I suggested using
>> "tuple[T]" as the notation for an arbitrary length tuple with elements
>> of type T
>
> If tuple[T] is an arbitrary-length tuple, then how
> do you spell a 1-tuple with element typ
Greg Ewing wrote:
> Nick Coghlan wrote:
>
>> Using '@' would now be fairly counterintuitive, given that symbol's
>> association with decorators.
>
> It would be very disappointing if @ were now considered
> too "polluted" by association with decorators to be used
> for anything else, since it wo
Greg Ewing wrote:
> tomer filiba wrote:
>> talin asked for comments, so
>>
>> def f(a, b, *, c, d)
>>
>> seems wrong to me. '*' can't be a token on its own, at least
>> that's the way i see it. opeators shouldn't stand for themselves.
>
> But * is not an operator here. It's just a token
> with a s
On 5/25/06, Nick Coghlan <[EMAIL PROTECTED]> wrote:
> Yes - I'm saying tuple[T1, T2] should describe an arbitrary length tuple whose
> elements are 2-tuples, *instead* of being equivalent to (T1, T2).
>
> Since we have 2 notations (a tuple of type descriptions, and a subscript
> operation on the tu
On 5/25/06, Nick Coghlan <[EMAIL PROTECTED]> wrote:
> def f(a, b, *(pos1, pos2), c, d):
> # Exactly 2 extra positional arguments required
-1.
This is (nearly?) just an obscure way to say "def f(a, b, pos1, pos2)".
Suggestion to everyone: please stop proposing alternatives. Let's
instead wor
At 11:42 AM 5/25/2006 +0200, Baptiste Carvello <[EMAIL PROTECTED]> wrote:
>maybe those use cases can work without syntactic sugar. With only part 1, you
>can already add a manual check if you need:
>
> >>> def myfunction(a1, a2, *forbidden, kw1, kw2):
>...assert forbidden is (), "myfunction()
Nick Coghlan wrote:
> def f(a, b, *(pos1, pos2), c, d):
> # Exactly 2 extra positional arguments required
Then someone is going to want
def f(a, b, *(pos1, pos2, *args), c, d):
# 2 or more positional-only arguments required
--
Greg
___
> On 5/25/06, Nick Coghlan <[EMAIL PROTECTED]> wrote:
>
>>Yes - I'm saying tuple[T1, T2] should describe an arbitrary length tuple whose
>>elements are 2-tuples, *instead* of being equivalent to (T1, T2).
Ah, I see. Yes, that would work, although it would
make tuple somewhat special in that some
