Luca Manini writes:
I have a pure-python (no Zope classes around) 'form' class like this:
class form:
def __init__(self, id): self.id = id
def actionTarget(self, REQUEST={}): "Main entry point." return 'foo'
From this class I derive a subclass
class zopeForm (SimpleItem.SimpleItem, form):
def actionTarget(self, REQUEST={}): "Main entry point." # ... other thing done here... form.actionTarget (self, REQUEST)
The zopeForm class is part of a product so I have instances of zopeForm (say 'zf') in a folder (say 'foo'). Now I would like to visit the URL
...../foo/zf/actionTarget
but I get the following error:
Error Type: TypeError Error Value: unbound method must be called with class instance 1st argument
but 'self' in the call to form.actionTarget should be a zopeForm instance! This is an ExtensionClass/Python incompatibility, documented with ExtensionClass. You need "inheritedAttribute" to work around the problem, documented too.
Dieter