Class 1: Tuesday, January 28th

• Prerequisites
• Course Description
• This Course Requires Work
• Texts
• Unix Account
• Programming Assignments
• Course Work
• Software Needed for the Course
• Laptops
• Phones
• Attendance
• Recorded Class Meetings
• Course Documents
• Grading Policy
• Exams and Your Grade
• Late Work
• Email Notification
• Gradescope
• If You Fall Behind See Me
• Diversity, Equity and Inclusion
• Accommodations for Disabilities
• Classroom Behavior
• Academic Integrity
• Reputation
• Academic Honesty
• Honesty Expected In This Class
• What Happens If You Are Caught Cheating?
• Use of Artificial Intelligence Programs
• Class Discussion Area
• Class Assistant
• Making the Class Interesting
• Taking Notes
• The Most Important Thing to Learn in This Class
• Learn to Read Carefully
• Who Am I
• Do You Have Enough Time to Do the Work for This Course?
• Your Mental Health
• Getting Enough Sleep
• Office Hours
• Academic Support Programs
• Other UMB Services
• Contacting Me
• First Class Exercise
• First Homework Assignment

Class 2: Thursday, January 30th

• Assignments
• Submitting Assignments
• Working on Assignments
• Software for the Class
• Class Assistant
• The Python Interpreter
• Python Scripts
• Rules for Scripts
• Variables
• Creating Variables with Assignment Statements
• Data Types
• Integers and Floats
• Characters
• Strings and String Literals
• Expressions
• Comments
• Variable Naming Rules
• The input Function
• Operators
• Decimal and Integer Division
• Remainder Operator
• Exponent Operator
• Operator Precedence
• Grouping with Parentheses
• Mixed-Type Expressions and Data Type Conversion
• Escape Characters
• Concatenation Operator
• Boolean Expression
• Relational Operators
• Comparing Strings
• Control Structures
• if Statements
• Code Blocks
• if-else Statements
• Nested if Statements
• Testing a Series of Conditions
• if-elif-else Statements
• Logical Operators
• Loops
• While Loops
• Infinite Loops

Class 3: Tuesday, February 4th

• Class Exercises
• Getting Help
• Describing a Problem
• Don't Use Screenshots in Piazza
• Making Script Executable
• for Loops
• The range Function
• Augmented Assignment Operators
• Nested Loops
• Functions
• Function Names
• Defining a Function
• Calling a Function
• Parameters
• Local Variables
• Functions that Return Values
• Returning Multiple Values
• Standard Library Functions
• Objects
• Files
• Using Files
• Creating a File Object
• Writing Data to a File
• Closing a File
• Using a File More Than Once
• Appending Data to a File
• Reading Files with a for Loop

Class 4: Thursday, February 6th

• Run Test Scripts in the Exercise Directory
• Creating Directories with FileZilla
• Keeping Your Scripts Organized
• Use Flash Cards to Prepare for Graded Quizzes
• Running a Script Without python3
• Records
• Errors
• Syntax Errors
• Logic Errors
• Runtime Errors
• Exception Objects
• Catching Exceptions
• The else Clause
• Sequences
• Indexing Sequence Objects
• Sequence Operators
• Empty Sequences
• The len Function
• Using a for Loop with Sequences
• Changing Values in a for Loop
• Slices
• The in Operator
• List Methods
• The del Statement
• The min and max Functions
• Negative Numbers as Indexes
• strip()
• Splitting a String

Class 5: Tuesday, February 11th

• Importance of Exams
• Preparing for Exams
• Read the Homework Assignments Carefully
• Sequences
• Dictionaries
• Dictionary Literals
• Getting Values from a Dictionary
• Empty Dictionaries
• Adding Entries to a Dictionary
• Changing a Dictionary Value
• Dictionaries Are Not Sequences
• Looping Through a Dictionary
• Tuples As Dictionary Values
• When To Use a Dictionary

Class 6: Thursday, February 13th

• Hashbang Problem with Windows Text Files
• Creating Lists
• Lists versus Dictionaries
• The in And not in Operators
• Deleting Elements from A Dictionary
• Getting the Number of Elements in a Dictionary
• Sorting Dictionary Keys
• Hash Tables

Class 7: Tuesday, February 18th

• Collecting and Testing Assignments
• Notifying You About Missing Work
• Late Work
• Help with Assignments
• No Appointment Needed For Office Hours
• Line Numbers In IDLE
• Printing a Dictionary in Reverse Order
• Values in a Boolean Context
• Keys Are Immutable
• Values in a Dictionary
• Dictionary Methods
• The clear method
• The get Method
• The pop Method
• The popitem Method
• The items Method
• The keys Method
• The values Method
• Real World Dictionary Example

Class 8: Thursday, February 20th

• Sets in Mathematics
• Set Membership
• Subsets and Supersets
• Union of Sets
• Intersection of Sets
• Difference between Sets
• Symmetric Difference between Sets
• Sets in Python
• Set Literals
• Creating a Set in Python
• The Empty Set
• Adding Elements to a Set
• Removing Elements from a Set
• Why Must Set Elements Be Immutable?

Class 9: Tuesday, February 25th

• Never Assume Your Code Works
• An Example of Evaluation in a Boolean Context
• The Size of a Set
• When Are Sets Equal?
• Elements in A Python Set
• for Loops with Sets
• Testing for Set Membership
• Union of Sets in Python
• Intersection of Sets in Python
• Difference between Sets in Python
• Symmetric Difference between Sets in Python
• Augmented Set Operators
• Subsets and Supersets
• Disjoint
• The clear Method
• min And max with Sets
• When Sets Are Best
• Practical Example
• Another Example
• Sets More Efficient Than Lists

Class 10: Thursday, February 27th

• Working with the Operating System
• The os Module
• os.getcwd()
• os.listdir(path)
• os.chdir(path)
• os.rename(old_name, new_name)
• os.remove(path)
• os.rmdir(path )
• os.mkdir(path )
• Running Unix Commands within Python
• os.environ
• The os.path Module
• os.path.isfile(path) and os.path.isdir(path)
• os.path.basename(path)
• The sys Module
• Getting Values from the Command Line
• Leaving a Running Script
• Usage Messages
• The platform Module

Class 11: Tuesday, March 4th

• Making Script Executable
• Getting Your First IT Job
• Keep In Contact
• Regular Expressions
• Working with Regular Expressions
• What You Need to Remember
• The Characters in Regular Expressions
• Ordinary Characters in Regular Expressions
• Using Regular Expressions to Find a Match
• Pattern Objects
• A Test Function for Regular Expressions
• Meta-characters in Regular Expressions
• The . Meta-character
• The * Meta-character
• The + Meta-character
• The ? Meta-character
• The \ Meta-character
• Character Classes
• \d and \D Character Classes
• The \w and \W Character Classes
• The \s and \S Character Classes

Class 12: Thursday, March 6th

• sys.argv
• Why Check Command Line Arguments?
• Telling the User What Went Wrong
• Improving the Usage Message
• Experimenting with Regular Expressions
• Problems Running hw6.py on pe15.cs.umb.edu
• Real World Regular Expressions
• Getting Strings from a Match
• The ( ) Meta-characters
• Extracting Text in a Loop
• A New Regular Expression Testing Script
• Repetition in Regular Expressions
• Specifying a Range of Repeating Characters
• Creating Custom Character Classes
• Ranges of Characters in a Character Class
• Specifying Minimum and Maximum of Repeating Characters
• Anchors in Regular Expressions
• The ^ Meta-Character
• The | Meta-Character
• Greedy versus Non-greedy Matching
• Other Methods to Find a Match

Class 13: Tuesday, March 11th

• Python for Real World Problems
• Email for Missing Homework
• Email for Missing Homework - Step 1
• Email for Missing Homework - Step 2
• Email for Missing Homework - Step 3
• Email for Missing Homework - Step 4
• Email for Missing Homework - Step 5
• Email for Missing Homework - Step 6
• Email for Missing Homework - Step 7
• Email for Missing Homework - Step 8
• Email for Missing Homework - Step 9
• Reusing Functions with Modules
• Importing Modules
• Dot Notation with Module Functions
• Another Regular Expression Problem - Total Scores
• Total Scores - Step 1
• Total Scores - Step 2
• Total Scores - Step 3
• Total Scores - Step 4
• Total Scores - Step 5

Class 14: Thursday, March 13th

Class 16: Thursday, March 27th

• Python as a Tool
• Working with Data
• Database Products
• SQLite
• The SQLite Command Line
• Database Structure
• Data Checking
• Queries
• Joins
• Views
• Changing Data in a Table
• Adding a Record to a Table
• Changing the Values in a Record
• Deleting Records
• Using SQLite in Python
• Connecting to a SQLite Database
• The SQLite Cursor Object
• Running a SQLite Query in Python
• Adding a Record Using SQLite
• Committing Changes to a Table
• Changing a Record Using SQLite
• Deleting a Record Using SQLite
• Writing Python Code to Work with SQLite
• A Python Function to Add an Entry to the enrollment Table
• Parameter Binding with sqlite3

Class 17: Tuesday, April 1st

• Common Exam Mistake - Creating a File Object When You Don't Need To
• Writing Better Programs
• Demonstrating Different Approaches to Programming
• An Example Problem
• First Approach
• Procedural Programming Approach
• Object Oriented Programming
• Object Oriented Approach

Class 18: Thursday, April 3rd

• Classes Are Used by Other Programs
• The Constructor Is Special
• Defining a Class
• Creating An Object from A Class
• The self Variable
• Using a Class
• Improving the Date Class
• Refactoring the Date Class
• The Time Class
• Static Methods
• Changing the Attributes of a Class

Class 19: Tuesday, April 8th

• TypeError When Creating Objects
• Accessing Attributes Directly
• Data Hiding
• The __str__ Method
• Accessor and Mutator Methods
• Data Validation in The Constructor
• Hiding Methods

Class 20: Thursday, April 10th

• Decorators
• The Property Decorator
• Getters Using the Property Decorator
• Setters Using the Property Decorator
• A Practical Example of A Class
• Other Methods for the Student Class
• Creating Student Objects
• Storing Objects for Future Use
• Pickling in student_load.py
• The Section Class
• Adding Students to A Section Object
• Import Statements and Global Variables

Class 21: Tuesday, April 15th

• Comments in Classes
• Don't Use "(Object)" When Defining a Class
• Magic Methods
• Magic Methods and Boolean Operators
• Type Conversion Magic Methods
• More About Relational Magic Methods
• Putting Test Code into Class Modules

Class 22: Thursday, April 17th

• Common Error: Class Test Code Does Not Run
• Reusing Classes
• Inheritance
• Principles of Inheritance
• An Example of Inheritance
• The Video Class
• The Video Constructor
• Validation Methods for Video
• Static Methods
• Calculating the Collection Number
• The Updated Video Constructor
• Video Accessors
• The __str__ Method
• Creating Superclasses

Class 23: Tuesday, April 22nd

• The Movie Subclass
• Creating a Subclass
• Creating a Constructor for a Subclass
• Movie Accessor Methods
• The add_actor Method
• A __str__ Method for Movie
• The super Function
• Creating Derived Objects
• The Instructional Class
• The Instructional Constructor
• The get_name Method for
• The __str__ Method for Instructional
• Polymorphism
• Mutator for the Instructional Class
• Accessors for the Instructional Class
• The isinstance Function

Class 24: Thursday, April 24th

• Functions Calling Functions
• Recursive Functions
• Writing Recursive Functions
• Calculating the Factorial of a Number
• Calculating Fibonacci Numbers
• Palindromes
• Binary Search
• Using Recursion in IT
• Replacing Recursion with a Loop
• Calculating Factorials with a Loop
• Calculating Fibonacci Numbers with a Loop
• Direct versus Indirect Recursion

Class 25: Tuesday, April 29th

• The First Computer Interfaces
• The Command Line as an Interface
• Birth of the Graphical User Interface
• GUI Programs Are Event-Driven
• Running Graphic Programs
• The Tkinter Module
• Using Tkinter
• Changing the Empty Window
• Running Graphical Python Programs
• Widgets
• Label Widgets
• Changing the Fonts in a Label
• Changing the Way I Import Tkinter
• Changing Label Colors