Jeremy Hylton wrote:
>  I think "bit of a mess" may be an understatement :-).
>  
>  ZODB3 and ZODB4 are entirely incompatible because the persistence
>  implementations use ExtensionClass and new-style classes, respectively. 
>  There's no practical way to mix them.

What's the proposed upgrade path for going from ZODB3 to ZODB4?

cheers,

Chris


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