> Is this a subclass? Look at the parent classes. Its class is a subclass of a similar class, but it indirectly references instances of subclasses of asyncore.dispatcher or asynchat.async_chat. I don't think there are other particular classes. If I remove the first references, pickle works. Anyway it seems that I will have to mask the asyncore.dispatcher and asynchat.async_chat subclass instances which will not be relevant at unpickle time.
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