classes and interfaces

[Rene Pijlman]

s99999999s2003 at yahoo.com:
>In python , how to implement interface like the above? 

Interfaces are lacking in Python, but an even more generic proposal is on
its way:
http://www.artima.com/weblogs/viewpost.jsp?thread=155123

In the mean time, interfaces have already been implemented in Zope 3:
http://www.zope.org/Products/ZopeInterface

-- 
René Pijlman

"To find out what you can do with interfaces, see the interface interface,
IInterface in the IInterface module."
- Comment in Zope's Interface/__init__.py