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Re: The type/object distinction and possible synthesis of OOP and imperative programming languages

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From Serhiy Storchaka <storchaka@gmail.com>
Subject Re: The type/object distinction and possible synthesis of OOP and imperative programming languages
Date Tue, 16 Apr 2013 11:25:53 +0300
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On 16.04.13 07:46, Ian Kelly wrote:
> On Mon, Apr 15, 2013 at 9:17 PM, Terry Jan Reedy <tjreedy@udel.edu> wrote:
>> I will keep the above in mind if I write or review a patch. here are 4
>> non-subclassable builtin classes. Two are already documented. Bool in one,
>> forget which other. I believe it was recently decided to leave the other two
>> as is given the absence of any practical use case.
>
> The four are bool, NoneType, slice and ellipsis, I believe.

 >>> import builtins
 >>> for n in dir(builtins):
...     if type(getattr(builtins, n)) is type:
...         try:
...             t = type(n, (getattr(builtins, n),), {})
...         except TypeError as e:
...             print(e)
...
type 'bool' is not an acceptable base type
type 'memoryview' is not an acceptable base type
type 'range' is not an acceptable base type
type 'slice' is not an acceptable base type

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The type/object distinction and possible synthesis of OOP and imperative programming languages Mark Janssen <dreamingforward@gmail.com> - 2013-04-14 20:48 -0700
  Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-15 10:11 +0000
    Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-04-15 19:43 +0200
      Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-16 02:15 +0000
    Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Dave Angel <davea@davea.name> - 2013-04-15 17:13 -0400
      Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Rotwang <sg552@hotmail.co.uk> - 2013-04-15 23:12 +0100
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Chris Angelico <rosuav@gmail.com> - 2013-04-16 08:32 +1000
          Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Rotwang <sg552@hotmail.co.uk> - 2013-04-15 23:54 +0100
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Mark Janssen <dreamingforward@gmail.com> - 2013-04-16 15:38 -0700
          Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-17 06:40 +0000
            Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Chris Angelico <rosuav@gmail.com> - 2013-04-17 16:56 +1000
            Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Chris Rebert <clp2@rebertia.com> - 2013-04-17 00:16 -0700
            Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-04-17 18:40 -0400
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Ian Kelly <ian.g.kelly@gmail.com> - 2013-04-16 17:14 -0600
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Michael Torrie <torriem@gmail.com> - 2013-04-18 10:37 -0600
          Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Neil Cerutti <neilc@norwich.edu> - 2013-04-18 17:57 +0000
          Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-19 01:00 +0000
            Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Roy Smith <roy@panix.com> - 2013-04-18 21:08 -0400
              Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Mark Janssen <dreamingforward@gmail.com> - 2013-04-18 18:24 -0700
              Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Ned Batchelder <ned@nedbatchelder.com> - 2013-04-18 22:10 -0400
              Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Mark Janssen <dreamingforward@gmail.com> - 2013-04-18 19:30 -0700
                Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-19 03:38 +0000
              Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Ned Batchelder <ned@nedbatchelder.com> - 2013-04-18 22:39 -0400
              Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Mark Janssen <dreamingforward@gmail.com> - 2013-05-01 13:32 -0700
                Re: The type/object distinction and possible synthesis of OOP and imperative programming languages alex23 <wuwei23@gmail.com> - 2013-05-01 18:13 -0700
    Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Terry Jan Reedy <tjreedy@udel.edu> - 2013-04-15 20:52 -0400
      Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-16 02:32 +0000
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Terry Jan Reedy <tjreedy@udel.edu> - 2013-04-15 23:17 -0400
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Ian Kelly <ian.g.kelly@gmail.com> - 2013-04-15 22:46 -0600
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages rusi <rustompmody@gmail.com> - 2013-04-15 21:56 -0700
          Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-16 05:59 +0000
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Serhiy Storchaka <storchaka@gmail.com> - 2013-04-16 11:25 +0300
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-04-16 11:07 +0200
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Terry Jan Reedy <tjreedy@udel.edu> - 2013-04-16 12:49 -0400
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Ethan Furman <ethan@stoneleaf.us> - 2013-04-16 10:29 -0700
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Terry Jan Reedy <tjreedy@udel.edu> - 2013-04-16 14:29 -0400
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Ian Kelly <ian.g.kelly@gmail.com> - 2013-04-16 12:22 -0600
        Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-04-17 14:04 +0200
  Re: The type/object distinction and possible synthesis of OOP and imperative programming languages 88888 Dihedral <dihedral88888@googlemail.com> - 2013-04-15 23:54 -0700
  Re: The type/object distinction and possible synthesis of OOP and imperative programming languages 88888 Dihedral <dihedral88888@googlemail.com> - 2013-04-15 23:54 -0700
  Re: The type/object distinction and possible synthesis of OOP and imperative programming languages rusi <rustompmody@gmail.com> - 2013-04-21 08:44 -0700

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