[Zope3-dev] Proxy and __slots__

Garrett Smith garrett at mojave-corp.com
Mon Aug 29 11:45:00 EDT 2005


I ended up using 'type' to create a new proxy with a dynamically created __slots__. I haven't run into any weirdness with that approach, so far :)

 -- Garrett

> -----Original Message-----
> From: Jim Fulton [mailto:jim at zope.com] 
> Sent: Monday, August 29, 2005 9:03 AM
> To: Garrett Smith
> Cc: 'zope3-dev at zope.org'
> Subject: Re: [Zope3-dev] Proxy and __slots__
> 
> Garrett Smith wrote:
> > I'd like to create a proxy where __slots__ is determined 
> (or appended to) when the proxy is constructed. E.g.
> > 
> > 
> >>>>foo = Foo()
> >>>>bar = SomeProxy(foo, 'baz')
> >>>>bar.baz = 123
> >>>>hasattr(foo, 'baz')
> > 
> > False
> > 
> >>>>hasattr(bar, 'baz')
> > 
> > True
> > 
> > Is it possible to do this?
> 
> No, at least not using the standard __slot__ mechanism.
> 
> Jim
> 
> -- 
> Jim Fulton           mailto:jim at zope.com       Python Powered!
> CTO                  (540) 361-1714            http://www.python.org
> Zope Corporation     http://www.zope.com       http://www.zope.org
> 


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