Message 138153 - Python tracker

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Author	dsdale24
Recipients	Darren.Dale, benjamin.peterson, daniel.urban, dsdale24, eric.araujo, ncoghlan, stutzbach
Date	2011-06-11.09:23:54
SpamBayes Score	1.1507444e-06
Marked as misclassified	No
Message-id	<[email protected]>
In-reply-to	<[email protected]>

Content
On Sat, Jun 11, 2011 at 3:11 AM, Daniel Urban <[email protected]> wrote: > > Daniel Urban <[email protected]> added the comment: > > It doesn't work with staticmethod: > >>>> import abc >>>> >>>> class C(metaclass=abc.ABCMeta): > ... @staticmethod > ... @abc.abstractmethod > ... def foo(x): > ... raise NotImplementedError() > ... >>>> class D(C): > ... @staticmethod > ... def foo(x): > ... return x + 1 > ... >>>> D() > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > TypeError: Can't instantiate abstract class D with abstract methods foo.__func__ You still need to use @abc.abstractstaticmethod.

On Sat, Jun 11, 2011 at 3:11 AM, Daniel Urban <[email protected]> wrote:
>
> Daniel Urban <[email protected]> added the comment:
>
> It doesn't work with staticmethod:
>
>>>> import abc
>>>>
>>>> class C(metaclass=abc.ABCMeta):
> ...     @staticmethod
> ...     @abc.abstractmethod
> ...     def foo(x):
> ...             raise NotImplementedError()
> ...
>>>> class D(C):
> ...     @staticmethod
> ...     def foo(x):
> ...             return x + 1
> ...
>>>> D()
> Traceback (most recent call last):
>  File "<stdin>", line 1, in <module>
> TypeError: Can't instantiate abstract class D with abstract methods foo.__func__

You still need to use @abc.abstractstaticmethod.

History
Date	User	Action	Args
2011-06-11 09:23:55	dsdale24	set	recipients: + dsdale24, ncoghlan, benjamin.peterson, stutzbach, eric.araujo, daniel.urban, Darren.Dale
2011-06-11 09:23:54	dsdale24	link	issue11610 messages
2011-06-11 09:23:54	dsdale24	create