Re: [Zope] Help subclassing a non Zope class as base class of a product

21 May 2002

      Hi,

Thanks Max, but it seems to work only if the base class is a "root" class (does not inherit of an other one).

In my case, I have...

<SNIP>
from UserList import UserList
class Myclass(UserList):
    def __init__(self, data=[]):
        ...
        # Exception raises from here now!!!
        UserList.__init__(self, data)
    ...

class ZMyClass(SimpleItem, MyClass):
    ...
    def __init__(self, id, title=''):
        ...
        ZMyClass.inheritedAttribute('__init__')(self)
...
</SNIP>

I could rework my code to have...

class ZMyClass(SimpleItem, MyClass, UserList):
...

But in that case (multiple __init__ due to multiple inheritance) WHERE does the inheritedAttribute finds the method.

Is there some doc for Python product programmers where I could find other APIs guides ?
There's - approximately - nothing for this in the Zope book.
I did not find anything and hack other's code doing things other do whithout knowing why.
In example, I did not find the difference between initializeClass and initializeBaseClass.

Thanks again.

--Gilles

----- Original Message ----- 
From: "Max M" <maxm@mxm.dk>
To: "Gilles Lenfant" <gilles@objectis.net>
Cc: <zope@zope.org>
Sent: Tuesday, May 21, 2002 4:05 PM
Subject: Re: [Zope] Help subclassing a non Zope class as base class of a product
: 
: As far as I remember you should:
: 
: class myObject(ObjectManager)   
:    
:     def __init__(self, id):
:         "Inits the object"
:         myObject.inheritedAttribute('__init__')(self, id)
: 
: Anyhoo you can google on "inheritedAttribute" and stuff should show up.
: 
: regards Max M
: 
: 
: 
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