On 10/24/12 16:34, Ian Kelly wrote:
> On Wed, Oct 24, 2012 at 2:40 PM, Dan Loewenherz <dloewenh...@gmail.com> wrote:
>> So I'm sure a lot of you have run into the following pattern. I use it
>> all the time and it always has felt a bit awkward due to the duplicate
>> variable assignment.
>>
>> VAR = EXPR
>> while VAR:
>> BLOCK
>> VAR = EXPR
>
> The idiomatic way to do this is:
>
> while True:
> VAR = EXPR
> if not VAR:
> break
> BLOCK
It may be idiomatic, but that doesn't stop it from being pretty
ugly. I must say I really like the parity of Dan's
while EXPR as VAR:
BLOCK
proposal with the "with" statement. It also doesn't fall prey to
the "mistaken-assignment vs. intentional-assignment" found in most
C-like languages. I could see a pretty reasonable PEP coming from this.
-tkc
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