Charlie Clark wrote:
Am 28.11.2007 um 14:03 schrieb Charlie Clark:
class Grid(dict, PortalContent)
...
TypeError: Error when calling the metaclass bases multiple bases have
instance lay-out conflict
Looks like using the old favourite UserDict solve the incompatability
problem.
class Grid(UserDict, PortalContent):
...
Right. You can't mix built-in types with ExtensionClasses (pretty much
anything in Zope 2 is an ExtensionClass). Actually, subclassing the
built-in types usually only works for trivial cases.
UserDict (or PersistentDict) is the right thing to use here.
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