Core Python Programming, Second Edition

Chapter 8. Conditionals and Loops

Chapter Topics

• if Statement

• else Statement

• elif Statement

• Conditional Expressions

• while Statement

• for Statement

• break Statement

• continue Statement

• pass Statement

• else Statement ... Take Two

• Iterators

• List Comprehensions

• Generator Expressions

The primary focus of this chapter are Python’s conditional and looping statements, and all their related components. We will take a close look at if, while, for, and their friends else, elif, break, continue, and pass.

8.1 if Statement

The if statement for Python will seem amazingly familiar. It is made up of three main components: the keyword itself, an expression that is tested for its truth value, and a code suite to execute ...