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Summary - Python programming

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"Dive into the world of Python programming with our comprehensive guide designed to elevate your coding skills to new heights. Whether you're a novice eager to embark on your coding journey or an experienced developer seeking to expand your expertise, this document offers a wealth of knowledge and practical insights.From fundamental concepts to advanced techniques, each chapter is meticulously crafted to provide clear explanations, illustrative examples, and hands-on exercises. Delve into topics such as data manipulation, web development, machine learning, and more, as you unlock the full potential of Python.Ideal for students, professionals, and enthusiasts alike, this document caters to learners at every level of proficiency. Beginners will appreciate the step-by-step guidance and beginner-friendly approach, while seasoned programmers will find valuable tips, tricks, and best practices to enhance their coding prowess.Stay ahead of the curve with up-to-date content that reflects the latest trends and advancements in Python programming. Whether you're looking to build your portfolio, tackle real-world projects, or simply sharpen your coding skills, this document is your ultimate companion on the journey to Python mastery.Unlock the power of Python and unleash your creativity with our comprehensive programming guide. Join the millions of learners worldwide who have transformed their lives and careers with the versatile language of Python. Get ready to code, innovate, and succeed like never before!"

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Introduction to Python Programming
Course Notes

Phil Spector
Department of Statistics, University of California Berkeley

March 16, 2005

,2

,Contents

1 Introduction 7
1.1 What is Python? . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 The very Basics of Python . . . . . . . . . . . . . . . . . . . . 8
1.3 Invoking Python . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4 Basic Principles of Python . . . . . . . . . . . . . . . . . . . . 11
1.4.1 Basic Core Language . . . . . . . . . . . . . . . . . . . 11
1.4.2 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.4.3 Object Oriented Programming . . . . . . . . . . . . . . 12
1.4.4 Namespaces and Variable Scoping . . . . . . . . . . . . 13
1.4.5 Exception Handling . . . . . . . . . . . . . . . . . . . . 15

2 String Data 17
2.1 String Constants . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2 Special Characters and Raw Strings . . . . . . . . . . . . . . . 18
2.3 Unicode Strings . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.4 String Operations . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.4.1 Concatenation . . . . . . . . . . . . . . . . . . . . . . . 19
2.4.2 Repetition . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.4.3 Indexing and Slicing . . . . . . . . . . . . . . . . . . . 21
2.4.4 Functions and Methods for Character Strings . . . . . 23

3 Numeric Data 29
3.1 Types of Numeric Data . . . . . . . . . . . . . . . . . . . . . . 29
3.1.1 Hexadecimal and Octal Constants . . . . . . . . . . . . 31
3.1.2 Numeric Operators . . . . . . . . . . . . . . . . . . . . 31
3.1.3 Functions for Numeric Data . . . . . . . . . . . . . . . 32
3.2 Conversion of Scalar Types . . . . . . . . . . . . . . . . . . . . 33

3

, 4 CONTENTS

4 Lists, Tuples and Dictionaries 37
4.1 List Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.2 List Indexing and Slicing . . . . . . . . . . . . . . . . . . . . . 39
4.3 List Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.3.1 Concatenation . . . . . . . . . . . . . . . . . . . . . . . 42
4.3.2 Repetition . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.3.3 The in operator . . . . . . . . . . . . . . . . . . . . . . 43
4.4 Functions and Methods for Lists . . . . . . . . . . . . . . . . . 44
4.5 Tuple Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.6 Operators and Indexing for Tuples . . . . . . . . . . . . . . . 49
4.7 Functions and Methods for Tuples . . . . . . . . . . . . . . . . 49
4.8 Dictionaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.9 Functions and Methods for Dictionaries . . . . . . . . . . . . . 52

5 Input and Output 55
5.1 The print command . . . . . . . . . . . . . . . . . . . . . . . 55
5.2 Formatting Strings . . . . . . . . . . . . . . . . . . . . . . . . 55
5.3 Using Names in Format Strings . . . . . . . . . . . . . . . . . 57
5.4 File Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.4.1 Methods for Reading . . . . . . . . . . . . . . . . . . . 59
5.4.2 Methods for Writing . . . . . . . . . . . . . . . . . . . 60
5.4.3 “Printing” to a File . . . . . . . . . . . . . . . . . . . . 60
5.4.4 Other Methods . . . . . . . . . . . . . . . . . . . . . . 61
5.4.5 File Object Variables . . . . . . . . . . . . . . . . . . . 61
5.5 Standard Input and Output Streams . . . . . . . . . . . . . . 62
5.6 Pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

6 Programming 67
6.1 Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.2 Indentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6.3 Truth, Falsehood and Logical Operators . . . . . . . . . . . . 72
6.4 if statement . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6.5 for loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
6.6 for loops and the range function . . . . . . . . . . . . . . . . 78
6.7 while loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
6.8 Control in Loops: break and continue . . . . . . . . . . . . . 82
6.9 List Comprehensions . . . . . . . . . . . . . . . . . . . . . . . 84

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