[ZODB-Dev] Re: Fixing Broken Objects?

[Michel Pelletier]

Chris Spencer wrote:
> I noticed that if a ZEOServer client doesn't have the definition for an 
> object's class, it loads it as a broken object. Is there any way to fix 
> the broken object by obtaining the class source from the server?

Others have commented on the status quo that your client must contain 
the correct code classes for your pickles.

However your question of loading code from a remote location is valid, 
and another Python remote object system (Pyro) that can be configured, 
with some restrictions, to load code over the network:

http://pyro.sourceforge.net/

in particular, see the section on "mobile code":

http://pyro.sourceforge.net/manual/7-features.html#mobile

I think twisted has a similar module but I don't know if it does the 
mobile code concept.

I've never heard of anyone doing it, but there might be some synergy 
with combining pyro's mobile code with ZODB and ZEO.

-Michel