From garymm at gmail.com  Sun Apr 28 00:23:40 2013
From: garymm at gmail.com (Gary Miguel)
Date: Sat, 27 Apr 2013 15:23:40 -0700
Subject: [stdlib-sig] binary logical operators in operator module
Message-ID: <CAAZqMdtcQcHtncFv_EobP+e3zxWjkJMH2QazUCjX6_===XCxUw@mail.gmail.com>

Hi,
This is my first time writing to a python list, so sorry if this message is
misdirected.
Recently I wrote something like:
functools.reduce(lambda x, y: x and y, ...)
and I was wondering why there is no logical and in the operator module.

(http://docs.python.org/3.3/library/operator.html)

Is there a reason for its not being there?
Thanks.
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From rdmurray at bitdance.com  Sun Apr 28 00:51:46 2013
From: rdmurray at bitdance.com (R. David Murray)
Date: Sat, 27 Apr 2013 18:51:46 -0400
Subject: [stdlib-sig] binary logical operators in operator module
In-Reply-To: <CAAZqMdtcQcHtncFv_EobP+e3zxWjkJMH2QazUCjX6_===XCxUw@mail.gmail.com>
References: <CAAZqMdtcQcHtncFv_EobP+e3zxWjkJMH2QazUCjX6_===XCxUw@mail.gmail.com>
Message-ID: <20130427225147.67C68250066@webabinitio.net>

On Sat, 27 Apr 2013 15:23:40 -0700, Gary Miguel <garymm at gmail.com> wrote:
> Hi,
> This is my first time writing to a python list, so sorry if this message is
> misdirected.
> Recently I wrote something like:
> functools.reduce(lambda x, y: x and y, ...)
> and I was wondering why there is no logical and in the operator module.
> 
> (http://docs.python.org/3.3/library/operator.html)
> 
> Is there a reason for its not being there?

Yes.  The logical operators are shortcut operators, and therefore
there are no magic methods for implementing logical 'and' and 'or',
and thus no operator functions for calling them.

You may find the 'all' and 'any' built in functions to be of interest.

FYI python-list is a better list for this kind of question.  You are
likely to get faster response there to most questions.  This is more of
a development list (currently pretty quiescent).

--David