Python Basics: Building Systems With Classes

Python Basics Exercises: Building Systems With Classes

Martin Breuss
Martin Breuss 39 Lessons 2h 9m basics python
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In Python Basics: Building Systems With Classes, you moved beyond the basics of object-oriented programming (OOP), and started to put those classes to work. In this exercise course you will employ these capabilities to build more complex systems and write readable, reusable code.

In this video course, you’ll practice the following:

  • Compose classes together to create layers of functionality
  • Inherit and override behavior from other classes to create variations
  • Creatively mix and match these approaches
  • Instantiate classes with attributes and methods
  • Override methods from a parent class

This video course is part of the Python Basics series, which accompanies Python Basics: A Practical Introduction to Python 3.

Note that you’ll be using IDLE to interact with Python throughout this course. If you’re just getting started, then you might want to check out Python Basics: Setting Up Python before diving into this course.

What’s Included:

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Review Exercises

7 Lessons 15m

  1. 1. Python Basics Exercises: Building Systems With Classes (Overview)03:28
  2. 2. Review the Dog Class03:26
  3. 3. Create a Child Class (Exercise)00:39
  4. 4. Create a Child Class (Solution)02:25
  5. 5. Extend a Method (Exercise)00:59
  6. 6. Extend a Method (Solution)03:16
  7. 7. Recap the Review Exercises00:52

Challenge: Model a Farm

8 Lessons 28m

  1. 1. Model a Farm Using OOP04:24
  2. 2. Draw Your Idea05:30
  3. 3. Create Parent and Child Classes01:43
  4. 4. Explore Class Attribute Quirks04:26
  5. 5. Build a Representation03:22
  6. 6. Use a Dunder Class Reference03:48
  7. 7. Plan Instance Methods01:29
  8. 8. Let the Animals Talk03:54

Implement Animal Feeding

4 Lessons 17m

  1. 1. Keep Track of Food With Non-Public Attribute05:22
  2. 2. Check Whether Animal Is Hungry03:14
  3. 3. Convert Method to an Attribute03:31
  4. 4. Empty the Animal Bellies05:40

Implement Locations

7 Lessons 20m

  1. 1. Revisit Your Drawing01:11
  2. 2. Create Location Classes02:22
  3. 3. Model Location as Instance Attribute03:40
  4. 4. Create a .__str__()03:12
  5. 5. Note Whether a Location Is Full04:52
  6. 6. Adapt Your Plan02:20
  7. 7. Add a Non-Public Attribute02:44

Refine Movement

9 Lessons 32m

  1. 1. Refine Plan for Move Method02:26
  2. 2. Avoid Duplicate Animals03:01
  3. 3. Prevent Overpopulation03:19
  4. 4. Test Move Method05:09
  5. 5. Discover an Issue Referencing Location Objects05:04
  6. 6. Add Public Location Property03:59
  7. 7. Extend Child Class With Extra Method04:05
  8. 8. Throw the Dog a Ball01:23
  9. 9. Explore Additional Ideas04:28

Identify and Fix Bug

4 Lessons 15m

  1. 1. Identify the Bug04:02
  2. 2. Make Testing Easier03:26
  3. 3. Fix the Bug04:35
  4. 4. Python Basics Exercises: Building Systems With Classes (Summary)03:09
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About Martin Breuss

Martin likes automation, goofy jokes, and snakes, all of which fit into the Python community. He enjoys learning and exploring and is up for talking about it, too. He writes and records content for Real Python and CodingNomads.

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Each tutorial at Real Python is created by a team of developers so that it meets our high quality standards. The team members who worked on this tutorial are:

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