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Re: while expression feature proposal

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  Re: while expression feature proposal Ian Kelly <ian.g.kelly@gmail.com> - 2012-10-24 15:34 -0600

#32068 — Re: while expression feature proposal

On Wed, Oct 24, 2012 at 2:40 PM, Dan Loewenherz <dloewenherz@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

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