Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #75589

Re: Correct type for a simple "bag of attributes" namespace object

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.mixmin.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed4.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path <fomcl@yahoo.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.030
X-Spam-Evidence '*H*': 0.94; '*S*': 0.00; 'say,': 0.05; "'python": 0.09; 'mail:': 0.09; 'namespace': 0.09; '"getting': 0.16; '"python': 0.16; 'b=2)': 0.16; 'does,': 0.16; 'least)': 0.16; 'reedy': 0.16; 'subject:object': 0.16; 'subject:simple': 0.16; 'subject:type': 0.16; 'write,': 0.16; '{})': 0.16; ':-)': 0.16; 'module': 0.19; '>>>': 0.22; 'import': 0.22; 'to:name:python- list@python.org': 0.22; 'right.': 0.26; 'asking': 0.27; 'header :In-Reply-To:1': 0.27; 'correct': 0.29; '>>>>': 0.31; 'obscure': 0.31; 'class': 0.32; '-----': 0.33; 'header:Received:9': 0.33; 'common': 0.35; 'but': 0.35; 'useful': 0.36; 'should': 0.36; 'employee': 0.37; 'too': 0.37; 'to:addr:python-list': 0.38; 'previous': 0.38; 'little': 0.38; 'does': 0.39; 'subject:': 0.39; 'subject:" ': 0.39; 'to:addr:python.org': 0.39; 'received:98.137': 0.60; 'august': 0.61; 'new': 0.61; 'simple': 0.61; 're:': 0.63; 'skip:n 10': 0.64; 'to:2**2': 0.65; 'details': 0.65; 'here': 0.66; 'header:Reply-To:1': 0.67; 'email addr:python.org"': 0.68; 'car': 0.72; 'to:addr:yahoo.com': 0.81; 'received:98.138.229': 0.84
X-Yahoo-Newman-Property ymail-4
X-Yahoo-Newman-Id 949685.79880.bm@omp1033.mail.gq1.yahoo.com
DKIM-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1407064452; bh=2ZmhjAA9Wd11iOkXc0nYFmVRfwOJRTEUexOJNKrCxWo=; h=References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=oGcphvDrFXwzgJ782dcj1ZDzbx//uvEr+8CJ40F3cdKX3EHAlaD/qwqhY6FsVsxBZMkOzNpPHWF3xAcMa6UAR3Zuaio7UWadSm4tOrD3zDx1TJCvIor6ZH5xTOTq07HtmpwUL4rbV3uzGSfmvzrKVJQcjoib7rK0NdEafv0kpBY=
X-YMail-OSG n.JPiukVM1lsYaGaeokkFajb3UQYYGv3TB87U2C.P6cUky0 kSn_glhHCAPTR2U3u4XRoE2IXpdfstlEce9MjITSRk.Sckxw8IYjfXucwiMv nImiWujWKKGwc80IKDwG_uHRHo0hur9m0D3Fpfx_j_byh7gtCPMF3GhmvDs. NxjQKLtcREbfo9Q.JEvr6MTrqMuS7JvjRAVPoY9AK.ehYXxyMKTzYHgdFkru BFxBtqwbGK8WKkwTUG0ON6cZluGO7zy9fiZwziQRDVo1wEIVc.GvcB6Dpkmc mpa5PVxCP_Th6XbmgxRGoWWjJcpcT3nR0qYyceKELM7zxUzOqA8m2KEnGtt7 lFFRdb9PGf5lcHXcwR8TGn5aQeVLigpXm2SnbYlVYfkWAnUBhCi8lz737ZQz OYUZxyEcbJ1oozlUj6Uj0xQc_ZdE.C43zIH_DPaD8DLIKf4gATw1ATl3d.Y3 avzQKAJe2GHMMIS6FkYkFP88hMIl_YS95Q3.2gNY22_ko1C.ljygCjxRKgXZ C7QwIfbvMsEuj5rBY3ruDMQjIVXSXWjlEw.dVIVhB92dqmLX_K9Y2o.rXDSZ C9hxK3C467mzzg4mPuY1VcKMTWQxX7u1iLbVrvavKsKbMJEdP.RbPcm5_2g- -
X-Rocket-MIMEInfo 002.001, CgotLS0tLSBPcmlnaW5hbCBNZXNzYWdlIC0tLS0tCgo.IEZyb206IEFsYmVydC1KYW4gUm9za2FtIDxmb21jbEB5YWhvby5jb20uZG1hcmMuaW52YWxpZD4KPiBUbzogVGVycnkgUmVlZHkgPHRqcmVlZHlAdWRlbC5lZHU.OyAicHl0aG9uLWxpc3RAcHl0aG9uLm9yZyIgPHB5dGhvbi1saXN0QHB5dGhvbi5vcmc.Cj4gQ2M6IAo.IFNlbnQ6IFN1bmRheSwgQXVndXN0IDMsIDIwMTQgMTE6MTcgQU0KPiBTdWJqZWN0OiBSZTogQ29ycmVjdCB0eXBlIGZvciBhIHNpbXBsZSAiYmFnIG9mIGF0dHJpYnV0ZXMiIG5hbWUBMAEBAQE-
X-Mailer YahooMailWebService/0.8.198.689
References <7ef67ccc-3fc3-47dd-b858-09ef3b57a497@googlegroups.com> <87r40zmkhr.fsf@elektro.pacujo.net> <53dd0717$0$29973$c3e8da3$5496439d@news.astraweb.com> <mailman.12548.1407009552.18130.python-list@python.org> <70e5f2f1-661f-40f2-bb7a-76e569c4d092@googlegroups.com> <CALwzidmZMReJL-XqOuxj5Q7mQhVA29itGZdmGCT3-6B7eyO_Sg@mail.gmail.com> <lrk7li$6nb$1@ger.gmane.org> <1407057464.64980.YahooMailNeo@web163806.mail.gq1.yahoo.com>
Date Sun, 3 Aug 2014 04:14:12 -0700
From Albert-Jan Roskam <fomcl@yahoo.com>
Subject Re: Correct type for a simple "bag of attributes" namespace object
To Albert-Jan Roskam <fomcl@yahoo.com>, Terry Reedy <tjreedy@udel.edu>, "python-list@python.org" <python-list@python.org>
In-Reply-To <1407057464.64980.YahooMailNeo@web163806.mail.gq1.yahoo.com>
MIME-Version 1.0
Content-Type text/plain; charset=iso-8859-1
Content-Transfer-Encoding quoted-printable
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.15
Precedence list
Reply-To Albert-Jan Roskam <fomcl@yahoo.com>
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <https://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 <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups comp.lang.python
Message-ID <mailman.12577.1407064631.18130.python-list@python.org> (permalink)
Lines 26
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1407064631 news.xs4all.nl 2970 [2001:888:2000:d::a6]:35408
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:75589

Show key headers only | View raw


----- Original Message -----

> From: Albert-Jan Roskam <fomcl@yahoo.com.dmarc.invalid>
> To: Terry Reedy <tjreedy@udel.edu>; "python-list@python.org" <python-list@python.org>
> Cc: 
> Sent: Sunday, August 3, 2014 11:17 AM
> Subject: Re: Correct type for a simple "bag of attributes" namespace object

<snip>

>>>>>   Right. The 'types' module provides a SimpleNamespace 
> class 
>>  for the
>>>>>   common "bag of attributes" use case::
>>>>> 
>>>>>        >>> import types
>>>>>        >>> foo = types.SimpleNamespace()
>>>>>        >>> foo.x = 3
>>>>>        >>> foo
>>>>>        namespace(x=3)
>>>> 
>>>>   This is too much for children (& beginners).
>>>> 
>>>>   But perhaps what I should be asking for is for a new built-in that 
> does 
>>  what types.SimpleNamespace() does, so that without any import you can 
> write, 
>>  say,
>>>> 
>>>>   foo = namespace(a=1, b=2)
>>>>   # or
>>>>   bar = namespace()
>>>>   bar.a = 1
> 
> I find the following obscure (to me at least) use of type() useful exactly for 
> this "bag of attributes" use case:
>>>>  employee = type("Employee", (object,), {})
>>>>  employee.name = "John Doe"
>>>>  employee.position = "Python programmer"
>>>>  employee.name, employee.position, employee
> ('John Doe', 'Python programmer', <class 
> '__main__.Employee'>)
> 
>>>>  details = dict(name="John Doe", position="Python 
> programmer")
>>>>  employee = type("Employee", (object,), details)
>>>>  employee.name, employee.position, employee
> ('John Doe', 'Python programmer', <class 
> '__main__.Employee'>)


PS to my previous mail: class() can (should?) be used here to do the exact same thing but it feels a little like "Getting your car [OOP] just because you need an ashtray [bundled items]". :-)

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

3 Suggestions to Make Python Easier For Children Mark Summerfield <list@qtrac.plus.com> - 2014-08-01 23:45 -0700
  Re: 3 Suggestions to Make Python Easier For Children Marko Rauhamaa <marko@pacujo.net> - 2014-08-02 10:14 +0300
    Re: 3 Suggestions to Make Python Easier For Children Mark Summerfield <list@qtrac.plus.com> - 2014-08-02 00:38 -0700
      Re: 3 Suggestions to Make Python Easier For Children Marko Rauhamaa <marko@pacujo.net> - 2014-08-02 11:03 +0300
        Re: 3 Suggestions to Make Python Easier For Children Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-03 02:00 +1000
          Re: 3 Suggestions to Make Python Easier For Children Marko Rauhamaa <marko@pacujo.net> - 2014-08-02 20:07 +0300
            Re: 3 Suggestions to Make Python Easier For Children Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-02 18:29 +0100
              Re: 3 Suggestions to Make Python Easier For Children Marko Rauhamaa <marko@pacujo.net> - 2014-08-02 21:33 +0300
    Re: 3 Suggestions to Make Python Easier For Children Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-03 01:43 +1000
      Correct type for a simple “bag of attributes” namespace object (was: 3 Suggestions to Make Python Easier For Children) Ben Finney <ben+python@benfinney.id.au> - 2014-08-03 05:58 +1000
        Re: Correct type for a simple "bag of attributes" namespace object (was: 3 Suggestions to Make Python Easier For Children) Mark Summerfield <list@qtrac.plus.com> - 2014-08-02 13:46 -0700
          Re: Correct type for a simple "bag of attributes" namespace object (was: 3 Suggestions to Make Python Easier For Children) Chris Angelico <rosuav@gmail.com> - 2014-08-03 07:05 +1000
          Re: Correct type for a simple "bag of attributes" namespace object Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-02 22:16 +0100
          Re: Correct type for a simple "bag of attributes" namespace object Chris Angelico <rosuav@gmail.com> - 2014-08-03 07:24 +1000
          Re: Correct type for a simple "bag of attributes" namespace object Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-02 22:23 +0100
          Re: Correct type for a simple "bag of attributes" namespace object (was: 3 Suggestions to Make Python Easier For Children) Devin Jeanpierre <jeanpierreda@gmail.com> - 2014-08-02 16:18 -0700
          Re: Correct type for a simple "bag of attributes" namespace object (was: 3 Suggestions to Make Python Easier For Children) Chris Angelico <rosuav@gmail.com> - 2014-08-03 09:27 +1000
          Re: Correct type for a simple "bag of attributes" namespace object (was: 3 Suggestions to Make Python Easier For Children) Ian Kelly <ian.g.kelly@gmail.com> - 2014-08-02 18:59 -0600
          Re: Correct type for a simple "bag of attributes" namespace object Terry Reedy <tjreedy@udel.edu> - 2014-08-02 22:40 -0400
          Re: Correct type for a simple "bag of attributes" namespace object Terry Reedy <tjreedy@udel.edu> - 2014-08-02 22:43 -0400
          Re: Correct type for a simple "bag of attributes" namespace object Albert-Jan Roskam <fomcl@yahoo.com> - 2014-08-03 02:17 -0700
          Re: Correct type for a simple "bag of attributes" namespace object Peter Otten <__peter__@web.de> - 2014-08-03 11:37 +0200
          Re: Correct type for a simple "bag of attributes" namespace object Albert-Jan Roskam <fomcl@yahoo.com> - 2014-08-03 03:51 -0700
          Re: Correct type for a simple "bag of attributes" namespace object Albert-Jan Roskam <fomcl@yahoo.com> - 2014-08-03 04:14 -0700
          Re: Correct type for a simple "bag of attributes" namespace object Peter Otten <__peter__@web.de> - 2014-08-03 13:23 +0200
            Re: Correct type for a simple "bag of attributes" namespace object Marko Rauhamaa <marko@pacujo.net> - 2014-08-03 17:51 +0300
              Re: Correct type for a simple "bag of attributes" namespace object Roy Smith <roy@panix.com> - 2014-08-03 11:09 -0400
                Re: Correct type for a simple "bag of attributes" namespace object Marko Rauhamaa <marko@pacujo.net> - 2014-08-03 18:52 +0300
              Re: Correct type for a simple "bag of attributes" namespace object Terry Reedy <tjreedy@udel.edu> - 2014-08-03 18:55 -0400
                Re: Correct type for a simple "bag of attributes" namespace object Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-04 11:19 +1000
                Re: Correct type for a simple "bag of attributes" namespace object Terry Reedy <tjreedy@udel.edu> - 2014-08-04 01:26 -0400
              Re: Correct type for a simple "bag of attributes" namespace object Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-04 10:13 +1000
                Re: Correct type for a simple "bag of attributes" namespace object Roy Smith <roy@panix.com> - 2014-08-03 20:59 -0400
                Re: Correct type for a simple "bag of attributes" namespace object Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-08-04 13:00 +1200
                Re: Correct type for a simple "bag of attributes" namespace object Marko Rauhamaa <marko@pacujo.net> - 2014-08-04 08:41 +0300
                Re: Correct type for a simple "bag of attributes" namespace object Ian Kelly <ian.g.kelly@gmail.com> - 2014-08-04 00:41 -0600
                Re: Correct type for a simple "bag of attributes" namespace object Marko Rauhamaa <marko@pacujo.net> - 2014-08-04 09:57 +0300
          Re: Correct type for a simple "bag of attributes" namespace object Akira Li <4kir4.1i@gmail.com> - 2014-08-03 18:22 +0400
      Re: Correct type for a simple “bag of attributes” namespace object Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-03 13:28 +0100
        Re: Correct type for a simple “bag of attributes” namespace object Roy Smith <roy@panix.com> - 2014-08-03 08:40 -0400
          Re: Correct type for a simple “bag of attributes” namespace object Chris Angelico <rosuav@gmail.com> - 2014-08-03 22:56 +1000
            Re: Correct type for a simple “bag of attributes” namespace object Roy Smith <roy@panix.com> - 2014-08-03 09:25 -0400
              Re: Correct type for a simple “bag of attributes” namespace object Chris Angelico <rosuav@gmail.com> - 2014-08-03 23:35 +1000
                Re: Correct type for a simple “bag of attributes” namespace object Roy Smith <roy@panix.com> - 2014-08-03 10:36 -0400
                Re: Correct type for a simple “bag of attributes” namespace object Chris Angelico <rosuav@gmail.com> - 2014-08-04 01:00 +1000
      Re: Correct type for a simple “bag of attributes” namespace object Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-03 18:38 +0100
        Re: Correct type for a simple “bag of attributes” namespace object Roy Smith <roy@panix.com> - 2014-08-03 13:44 -0400
  Re: 3 Suggestions to Make Python Easier For Children Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-02 08:46 +0100
    Re: 3 Suggestions to Make Python Easier For Children Mark Summerfield <list@qtrac.plus.com> - 2014-08-02 01:03 -0700
      Re: 3 Suggestions to Make Python Easier For Children Terry Reedy <tjreedy@udel.edu> - 2014-08-02 19:14 -0400
  Re: 3 Suggestions to Make Python Easier For Children Terry Reedy <tjreedy@udel.edu> - 2014-08-02 19:12 -0400
  Re: 3 Suggestions to Make Python Easier For Children Brian Blais <bblais@gmail.com> - 2014-08-05 07:36 -0400
    Re: 3 Suggestions to Make Python Easier For Children Marko Rauhamaa <marko@pacujo.net> - 2014-08-05 15:04 +0300
      Re: 3 Suggestions to Make Python Easier For Children Skip Montanaro <skip@pobox.com> - 2014-08-05 07:31 -0500
        Re: 3 Suggestions to Make Python Easier For Children Marko Rauhamaa <marko@pacujo.net> - 2014-08-05 16:19 +0300
          Re: 3 Suggestions to Make Python Easier For Children MRAB <python@mrabarnett.plus.com> - 2014-08-05 15:11 +0100
          Re: 3 Suggestions to Make Python Easier For Children Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-06 02:14 +1000
      Re: 3 Suggestions to Make Python Easier For Children Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-05 22:43 +1000
        Re: 3 Suggestions to Make Python Easier For Children Chris Angelico <rosuav@gmail.com> - 2014-08-05 23:08 +1000
      Re: 3 Suggestions to Make Python Easier For Children Chris Angelico <rosuav@gmail.com> - 2014-08-05 23:00 +1000

csiph-web