All, I have many places where I have used this in a schema.
class IAbc attr1 = Object(schema=IAbc) class Abc(object): """does some stuff but is usually an abstract class""" implements (IAbc) Where IAbc is actually meant to represent that any one of (let's say) three different sub-classes of Abc would be acceptable for that attribute. I think my approach is completely wrong but I do not understand all the different cases to use implements, Provides, classImplements, etc. so if I had: class Def(Abc): implements(IDef) class Gbn(Abc): implements(IGbn) class Xds(Abc): implements(IXds) What is the correct function to use and where so that when attr1 is assigned a value it will be happy with an instance of Def, Gbn or Xds? But nothing else? Thanks, --Tim Then attr1 above would be happy to accept -- Timothy Cook, MSc Health Informatics Research & Development Services LinkedIn Profile:http://www.linkedin.com/in/timothywaynecook Skype ID == timothy.cook ************************************************************** *You may get my Public GPG key from popular keyservers or * *from this link http://timothywayne.cook.googlepages.com/home* **************************************************************
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