Re: Set Operations on Dicts

From	Ian Kelly <ian.g.kelly@gmail.com>
Newsgroups	comp.lang.python
Subject	Re: Set Operations on Dicts
Date	2016-02-09 08:14 -0700
Message-ID	<mailman.10.1455030904.29838.python-list@python.org> (permalink)
References	<mailman.86.1454925476.2317.python-list@python.org> <n9a2jk$9s$1@dont-email.me> <mailman.106.1454948013.2317.python-list@python.org> <n9c3rd$1vt$1@dont-email.me>

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On Tue, Feb 9, 2016 at 12:21 AM, Grobu <snailcoder@retrosite.invalid> wrote:
> On 08/02/16 17:12, Ian Kelly wrote:
>
>> dict does already expose set-like views. How about:
>>
>> {k: d[k] for k in d.keys() & s}  # d & s
>> {k: d[k] for k in d.keys() - s}  # d - s
>>
> Interesting. But seemingly only applies to Python 3.

Substitute d.viewkeys() for d.keys() in Python 2.7.

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Set Operations on Dicts Marco Kaulea <marco.kaulea@gmail.com> - 2016-02-08 10:56 +0100
  Re: Set Operations on Dicts Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-02-08 14:17 +0200
    Re: Set Operations on Dicts Marco Kaulea <marco.kaulea@gmail.com> - 2016-02-08 13:33 +0100
    Re: Set Operations on Dicts Matt Wheeler <m@funkyhat.org> - 2016-02-08 13:32 +0000
      Re: Set Operations on Dicts Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-02-08 16:02 +0200
    Re: Set Operations on Dicts Random832 <random832@fastmail.com> - 2016-02-08 09:52 -0500
      Re: Set Operations on Dicts Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-02-08 17:05 +0200
  Re: Set Operations on Dicts Grobu <snailcoder@retrosite.invalid> - 2016-02-08 13:47 +0100
    Re: Set Operations on Dicts Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-08 09:12 -0700
      Re: Set Operations on Dicts Grobu <snailcoder@retrosite.invalid> - 2016-02-09 08:21 +0100
        Re: Set Operations on Dicts Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-09 08:14 -0700

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