Python23: cannot inherit from bool?

Andrew Thompson andrew.thompson at ashecastle.com
Wed Jan 15 14:45:03 CET 2003


Inheriting from bool is a clever idea from Smalltalk.

Where true and false subclass the abstract type bool.

This then makes if,and,or,not all very natural to define.

Andrew

-----Original Message-----
From: python-list-admin at python.org [mailto:python-list-admin at python.org]
On Behalf Of Robin Becker
Sent: 15 January 2003 13:28
To: python-list at python.org
Subject: Re: Python23: cannot inherit from bool?


In article <b03kr8$lbili$1 at ID-71831.news.dfncis.de>, James Kew
<james.kew at btinternet.com> writes
>FrankS wrote:
>> It seems that 2.3 doesn't allow you to inherit from bool:
>
>I'm not qualified to comment on why it's not allowed, but out of 
>interest: why might you want to inherit from bool?
>
.... don't know the answer to that one, but is the non inheritance
property available to ordinary python if yes we could create leaf
classes.
-- 
Robin Becker
-- 
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