Re: Determining the metaclass

2009-09-01 Thread casebash 
Thanks, I am silly


>
> > I cannot determine if a class is an instance of a particular
> > metaclass. Here is my best attempt
>
> > >>> class tmp(type):
>
> > ...     pass
> > ...>>> def c(metaclass=tmp):
>
> > ...     pass
> > ...>>> isinstance(c, tmp)
> > False
> > >>> isinstance(c.__class__, tmp)
>
> > False
>
> > Can anyone explain why this fails?
>
> You're gonna kick yourself.
>
> It's because you used "def" and not "class" to define c.  If you'd
> used "class" then then first test would have worked.
>
> Carl Banks

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Re: Determining the metaclass

2009-08-29 Thread Carl Banks 
On Aug 29, 5:12 pm, casebash  wrote:
> Hi all,
>
> I cannot determine if a class is an instance of a particular
> metaclass. Here is my best attempt
>
> >>> class tmp(type):
>
> ...     pass
> ...>>> def c(metaclass=tmp):
>
> ...     pass
> ...>>> isinstance(c, tmp)
> False
> >>> isinstance(c.__class__, tmp)
>
> False
>
> Can anyone explain why this fails?

You're gonna kick yourself.

It's because you used "def" and not "class" to define c.  If you'd
used "class" then then first test would have worked.


Carl Banks



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Determining the metaclass

2009-08-29 Thread casebash 
Hi all,

I cannot determine if a class is an instance of a particular
metaclass. Here is my best attempt

>>> class tmp(type):
... pass
...
>>> def c(metaclass=tmp):
... pass
...
>>> isinstance(c, tmp)
False
>>> isinstance(c.__class__, tmp)
False

Can anyone explain why this fails?

Thanks very much,

Chris
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