[ZODB-Dev] PersistentMapping copy

[Joshua Reynolds]

Sorry, I have the latest "StandaloneZODB" checkout.  The problem is this:

User dict's copy defaults to using the copy module's copy() function for 
all subclasses.

If the thing your trying to copy doesn't have a __copy__ method 
(PersistentMapping doesn't) the copy function fall down go boom with an 
un(shallow)copyable Error.

Joshua


Jeremy Hylton wrote:

>>>>>>"JR" == Joshua Reynolds <joshuar@isogen.com> writes:
>>>>>>
> 
>   JR> Is there any compelling reason not to have a copy method on
>   JR> PersistentMapping?  I am trying to update to the latest ZODB and
>   JR> i see that it is gone.  I was thinking something along the lines
>   JR> of
> 
>   JR>      def __copy__(self):
>   JR>          return PersistentMapping(self.data.copy())
> 
> What version of ZODB are you refering to?  The code on the Zope trunk
> now extends UserDict.  UserDict defines a copy() method.
> 
> Jeremy
> 
> 
> 
> 


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