Python for Programmers

3. Control Statements

Objectives

In this chapter, you’ll:

• Make decisions with if, if else and if elif else.

• Execute statements repeatedly with while and for.

• Shorten assignment expressions with augmented assignments.

• Use the for statement and the built-in range function to repeat actions for a sequence of values.

• Perform sentinel-controlled iteration with while.

• Create compound conditions with the Boolean operators and, or and not.

• Stop looping with break.

• Force the next iteration of a loop with continue.

• Use functional-style programming features to write scripts that are more concise, clearer, easier to debug and easier to parallelize.

Outline

1. 3.1 Introduction

2. 3.2 Control Statements

3. 3.3 if Statement

4. 3.4 if else and if elif else Statements ...