Chapter 11. Functions and Functional Programming

Chapter Topics

• What Are Functions?

• Calling Functions

• Creating Functions

• Passing Functions

• Formal Arguments

• Variable-Length Arguments

• Functional Programming

• Variable Scope

• Recursion

• Generators

We were introduced to functions in Chapter 2, and we have seen them created and called throughout the text. In this chapter, we will look beyond the basics and give you a full treatment of all the other features associated with functions. In addition to the expected behavior, functions in Python support a variety of invocation styles and argument types, including some functional programming interfaces. We conclude this chapter with a look at Python’s scoping and take an optional ...

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