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To really take advantage of Python you must understand how imports work and how to use them effectively. In this talk we'll discuss both of these. After a short introduction to imports, we'll dive right in and look at how customizing import behavior can make all your wildest dreams come true.
In 2.6, Python introduced the Abstract Base Classes. Before that we had "protocols" (and we still do). In this talk we'll look at how the general concept of interfaces fits into today's Python. We'll also look at some of the alternate proposals of the past, some of the controversies around ABCs, and the direction interfaces might go in the future.