Chapter 7. Mapping and Set Types

Chapter Topics

• Mapping Type: Dictionaries

• Operators

• Built-in Functions

• Built-in Methods

• Dictionary Keys

• Set Types

• Operators

• Built-in Functions

• Built-in Methods

• Related Modules

In this chapter, we take a look at Python’s mapping and set types. As in earlier chapters, an introduction is followed by a discussion of the applicable operators and factory and built-in functions (BIFs) and methods. We then go into more specific usage of each data type.

7.1 Mapping Type: Dictionaries

Dictionaries are the sole mapping type in Python. Mapping objects have a one-to-many correspondence between hashable values (keys) and the objects they represent (values). They are similar to Perl ...

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