Path: csiph.com!usenet.pasdenom.info!news.albasani.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path: <jeanpierreda@gmail.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.005
X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'case.': 0.05; 'none:': 0.05; 'arguments': 0.07; 'received:mail-qc0-f174.google.com': 0.09; 'subject:while': 0.09; 'cc:addr:python-list': 0.10; 'cases': 0.15; 'in-place': 0.16; 'oct': 0.16; 'subject:expression': 0.16; 'true:': 0.16; 'wrote:': 0.17; 'bit': 0.21; 'assignment': 0.22; "i'd": 0.22; 'cc:2**0': 0.23; 'this:': 0.23; 'cc:no real name:2**0': 0.24; 'cc:addr:python.org': 0.25; 'header:In-Reply- To:1': 0.25; '(which': 0.26; 'message-id:@mail.gmail.com': 0.27; 'dan': 0.29; 'fri,': 0.30; 'keyword': 0.30; 'print': 0.32; 'received:google.com': 0.34; 'clear': 0.35; 'doing': 0.35; 'pm,': 0.35; 'received:209.85': 0.35; 'something': 0.35; 'but': 0.36; 'wanted': 0.36; 'why': 0.37; 'rather': 0.37; 'received:209': 0.37; 'received:209.85.216': 0.37; 'subject:: ': 0.38; 'object': 0.38; 'some': 0.38; 'skip:" 10': 0.40; 'header:Received:5': 0.40; 'more': 0.63; '26,': 0.65; 'insanity': 0.84; 'imagine': 0.96
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=26B9SdQIGAF//EWZFV2qcKlOjtjJv6EFOaFq2jX54h4=; b=dkrePURxVlTHsoQdD8PwOHMDft9NE71eB6Le5UegpaewhkVrH9ubNG8+GFA+yjqYH8 PO1276fx7RrLYf0pCBt3a1NbNCTBnikqP4+AT68jhR2Z/IoghH9wTN0d8LFqbjFhBG/m U5bzOdApdQmtsqNPjnZuX06KstXgp0OdX6WzsLPntR1Y+/uKYdAW1YIkGcrJKg6PQUKV EiTlviqXt5fcIOv7Q/gmCgSiptWmSJ+wHswfWxmc/A9D5/8VqtkPV/DTJ/hiNCpLGAFx HLI/60Z3dB4F6lcEKsmD/uUHBvCwGjb2IhWo/UAbJoin4ErDTN+c0KgHKuo5/1YvxqGb InqA==
MIME-Version: 1.0
In-Reply-To: <CAOKWLrE-Uz7Q3mMo9N2-uHZOC3E7zW9BcMfoy6-MgwxKAcxoww@mail.gmail.com>
References: <CAOKWLrERVuT-u=9YZGnQUhWLv2M6F06pU20vG9W1joD9h-SdSQ@mail.gmail.com> <CALwzidm1zj5ZR4YU-DCWBgY3Q4m=UC0BNs3qJfwYpV+Kh+21cg@mail.gmail.com> <50886398.5050301@tim.thechases.com> <mailman.2803.1351119286.27098.python-list@python.org> <7x7gqf1na2.fsf@ruckus.brouhaha.com> <mailman.2807.1351121989.27098.python-list@python.org> <k6apaa$eid$1@r03.glglgl.gl> <mailman.2854.1351183039.27098.python-list@python.org> <k6c8kh$lqj$1@r03.glglgl.gl> <f3e3c344-8a7d-46f7-b499-144775c7f9aa@googlegroups.com> <CABicbJLOBAk7-MOCTP3p9pTfWMtvJperMbMmwdST6Mj3Vj3ziA@mail.gmail.com> <CAOKWLrE-Uz7Q3mMo9N2-uHZOC3E7zW9BcMfoy6-MgwxKAcxoww@mail.gmail.com>
From: Devin Jeanpierre <jeanpierreda@gmail.com>
Date: Fri, 26 Oct 2012 19:51:21 -0400
Subject: Re: while expression feature proposal
To: Dan Loewenherz <dloewenherz@gmail.com>
Content-Type: text/plain; charset=UTF-8
Cc: python-list@python.org
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.2919.1351295955.27098.python-list@python.org>
Lines: 33
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1351295955 news.xs4all.nl 6986 [2001:888:2000:d::a6]:55262
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:32248

On Fri, Oct 26, 2012 at 7:41 PM, Dan Loewenherz <dloewenherz@gmail.com> wrote:
-- snip insanity --
>
> But this is yucky. I'd much rather have something a bit more clear to the
> reader.

That's why I said I wanted a better iter, not some equality-overriding
object strawman thing.

I was thinking more like this:

    for profile_id in iter(None)(client.spop, "profile_ids"):

or alternatively:

    for profile_id in iter(bool)(client.spop, "profile_ids"):

Or perhaps either as keyword arguments (which is the only reason I
curried iter).

The interesting case for in-place assignment is not here. This is a
trivial case. It's in cases like this:

    while True:
        x = foo(bar())
        if x is None: break
        if x % 2 == 0: break

        print x

Imagine doing that with iter. :)

-- Devin