[Zope-dev] Zope2.7.0rc2 AttributeError: 'NoneType' object has noattribute 'setHeader'

[Lennart Regebro]

From: "Dieter Maurer" <dieter at handshake.de>
> Maybe, we have a memory corruption.
> I have seen objects magically becoming "None" in
> Python versions with memory corruption problems (Python 2.1.1).

Also, loads of objects can become None when you do a refresh, because of
some strange bug in the refresh support that has been there since it got
integrated into the core and which nobody seems to understand.

But I guess that's not the case here, because that problem would go away
when you restart the server.