Course
Case Study: Building Software in Python
AdvancedSkill Level
Updated 06/2025Start Course for Free
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PythonProgramming3 hr10 videos29 Exercises2,050 XPStatement of Accomplishment
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What You’ll Build
Using Python, you’ll design and implement a mortgage calculator that evolves from a basic tool into a robust solution. Starting with simple modules, you’ll expand the functionality using inheritance to create advanced calculators, including one that handles financial computations. This hands-on project will help you understand real-world software development techniques and how to structure scalable code.Techniques You’ll Use
Throughout the course, you’ll follow best practices like the DRY (Don’t Repeat Yourself) principle and modularity to organize your code effectively. You’ll adhere to PEP 8 standards, use tools like Pylint to maintain code quality and write automated tests with pytest to ensure your application’s reliability. By the end of the course, you’ll have the skills to design, implement, and test real-world software solutions with confidence.Prerequisites
Intermediate Object-Oriented Programming in PythonSoftware Engineering Principles in Python1
Introduction to the Case Study
Get to know the brief and start building your calculators from scratch while recapping important object-oriented and software engineering principles such as the Don't Repeat Yourself (DRY) principle.
2
Write a Python Module
The basics are done, and now it's time to spruce them up! Continue with adding documentation and automated testing, and extend the functionality even further.
3
Maintainability
The main code is written so now it's time to make sure everything works as it should and follows the best practices. Learn how to review, refactor, and improve your code, as well as run more comprehensive tests.
Case Study: Building Software in Python
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