Think Python_ How to Think Like a Computer Scientist [Downey 2012-08-23].pdf

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Think Python
Allen B. Downey
Think Python
by Allen B. Downey
Copyright © 2012 Allen Downey. All rights reserved.
Printed in the United States of America.
Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472.
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Interior Designer:
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Illustrators:
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August 2012:
First Edition
Revision History for the First Edition:
2012-08-03
First release
See
http://oreilly.com/catalog/errata.csp?isbn=9781449330729
for release details.
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Think Python is available under the
Creative Commons Attribution-NonCommercial 3.0 Unported License.
The author maintains an online version at
http://thinkpython.com/thinkpython.pdf.
While every precaution has been taken in the preparation of this book, the publisher and authors assume
no responsibility for errors or omissions, or for damages resulting from the use of the information contained
herein.
ISBN: 978-1-449-33072-9
[LSI]
Table of Contents
Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1. The Way of the Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
The Python Programming Language
What Is a Program?
What Is Debugging?
Syntax Errors
Runtime Errors
Semantic Errors
Experimental Debugging
Formal and Natural Languages
The First Program
Debugging
Glossary
Exercises
Values and Types
Variables
Variable Names and Keywords
Operators and Operands
Expressions and Statements
Interactive Mode and Script Mode
Order of Operations
String Operations
Comments
Debugging
Glossary
1
3
4
4
4
5
5
6
7
8
9
11
13
14
15
16
16
17
18
18
19
19
20
2. Variables, Expressions, and Statements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
iii

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