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From http://www.eby-sarna.com/pipermail/peak/2004-September/001783.html :
To some extent, this view of interfaces is influenced by PyProtocols/PEP 246. Without object adaptation, interfaces aren't quite as useful. But with adaptation, the best way to design a collaboration of objects is to focus on the essential and desired behaviors. Then, you determine how to adapt the behavior of existing objects to perform your desired behavior.
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