Table of Contents

• What Do Computing Professionals Do?
• Models, Algorithms, and Programs
• Tools of the Trade
• What Is Computer Science?

• Computer Hardware
• Operating Systems
• Networks and Network Protocols
• Programming Languages
• Software Libraries

• Short History of Python
• Setting Up the Python Development Environment

• A Sample Problem
• Abstraction and Modeling
• Algorithm
• Data Types
• Assignments and Execution
• Control Structures

• Algebraic Expressions and Functions
• Boolean Expressions and Operators
• Variables and Assignments
• Variable Names

• String Operators
• Indexing Operator

• List Operators
• Lists Are Mutable, Strings Are Not
• Tuples, or “ImmutableLists”
• List and Tuple Methods

• Object Type
• Valid Values for Number Types
• Operators for Number Type
• Creating Objects
• Implicit Type Conversions
• Explicit Type Conversions
• Class Methods and Object-Oriented Programming

• Module math
• Module fractions

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• Our First Python Program
• Python Modules
• Built-In Function print()
• Interactive Input with input()
• Function eval()

• One-Way Decisions
• Two-Way Decisions
• Iteration Structures
• Nesting Control Flow Structures
• Function range()

• Our First Function
• Function Input Arguments
• print() versus return
• Function Definitions Are “Assignment” Statements
• Comments
• Docstrings

• Mutable and Immutable Types
• Assignments and Mutability
• Swapping

• Immutable Parameter Passing
• Mutable Parameter Passing

CaseStudy:Automating Turtle Graphics

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• String Representations
• The Indexing Operator, Revisited
• String Methods

• Function print()
• String Method format()
• Lining Up Data in Columns
• Getting and Formatting the Date and Time

• File System
• Opening and Closing a File
• Patterns for Reading a Text File
• Writing to a Text File

• SyntaxErrors
• Built-InExceptions

CaseStudy:Image Files

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• Three-Way (and More!) Decisions
• Ordering of Conditions

• Loop Pattern: Iteration Loop
• Loop Pattern: Counter Loop
• Loop Pattern: Accumulator Loop
• Accumulating Different Types
• Loop Patterns:NestedLoop

• Two-Dimensional Lists
• Two-Dimensional Lists and the Nested Loop Pattern

• while Loop Usage

• Iteration Patterns: Sequence Loop
• Loop Pattern: Infinite Loop
• Loop Pattern: Loop and a Half

• break Statement
• continue Statement
• pass Statement

Case Study: Image Processing.

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• User-Defined Indexes as Motivation for Dictionaries
• Dictionary Class Properties
• Dictionary Operators
• Dictionary Methods
• A Dictionary as a Substitute for the Multiway if Statement
• Dictionary as a Collection of Counters
• tuple Objects Can Be Dictionary Keys

• Using the set Constructor to Remove Duplicates
• set Operators
• set Methods

• Character Encodings
• ASCII
• Unicode
• UTF-8 Encoding for Unicode Characters

• Choosing a Random Integer
• Choosing a Random “Real”
• Shuffling, Choosing, and Sampling at Random

Case Study: Games of Chance