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Re: while expression feature proposal

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  Re: while expression feature proposal Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2012-10-25 13:22 +0200

#32117 — Re: while expression feature proposal

On 25-10-12 06:50, Terry Reedy wrote:
> On 10/24/2012 7:19 PM, Evan Driscoll wrote:
>> On 10/24/2012 05:26 PM, Cameron Simpson wrote:
>>> But I'm still -0 on it, because it supplants the glaringly obvious:
>>>
>>>    m = ...
>>>
>>> assignment with the far less in your face:
>>>
>>>    possibly-long-expr as m
>>>
>>> and I think it would get quite heavily used, to the detriment of
>>> assignment readability in general. At present the nature of most
>>> effects
>>> is at the left. An assignment is obvious on the left, an
>>> if/with/while/etc
>>> is visible at the left.
>>
>> In the interest of brainstorming, what about
>>
>>     while VAR from EXPR:
>>
>> or something like that? I don't think I like 'from' on a couple counts,
>> but there's probably some word that fits.
>
> The op wondered if these proposals have been made before. They have
> been, and have been rejected. Some of the discussion has been on
> python-ideas list. But go ahead and brainstorm and discuss.
>
> Keep in mind that any new syntax has to be a substantial improvement
> in some sense or make something new possible. There was no new syntax
> in 3.2 and very little in 3.3.

If I recal correctly at one point the following was accepted:

do:
    suite
while expr:
    suite

But it was later discarded because of lack of a champion or something
like that.

-- 
Antoon Pardon
 

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