Cohesion and Coupling: Write BETTER PYTHON CODE Part 1

💡 Learn how to design great software in 7 steps: https://arjan.codes/designguide.

Writing code, especially in larger software projects can be very challenging. In this video, I'm going to cover cohesion and coupling to help you write better code. I'll go through a Python program in detail and I'll show you how to write code that has low coupling and strong cohesion. Coupling and Cohesion are part of the GRASP principles of object-oriented design, as proposed by Craig Larman in his book (see below for a link).

Here are a few books about software design that might interest you:
Applying UML and Patterns: An Introduction to Object-Oriented Analysis and Design and Iterative Development, by Craig Larman: https://amzn.to/364wgLb
Design Patterns: Elements of Reusable Object-Oriented Software, by the Gang of Four: https://amzn.to/39451Cv

🎓 ArjanCodes Courses: https://www.arjancodes.com/courses/


You can find the code I worked on in this episode in my GitHub repository: https://github.com/arjancodes/betterp...

All parts in this series:
Part 1: Cohesion and coupling -    • Cohesion and Coupling: Write BETTER PYTHON...  
Part 2: Dependency inversion -    • Dependency Inversion: Write BETTER PYTHON ...  
Part 3: The strategy pattern -    • The Strategy Pattern: Write BETTER PYTHON ...  
Part 4: The observer pattern -    • Observer Pattern Tutorial: I NEVER Knew Ev...  
Part 5: Unit testing and code coverage -    • 100% CODE COVERAGE - Think You're Done? Th...  
Part 6: Template method and bridge -    • Two UNDERRATED Design Patterns 💡 Write BET...  
Part 7: Exception handling -    • Exception Handling Tips in Python ⚠ Write ...  
Part 7b: Monadic error handling -    • Monadic Error Handling in Python ⚠ Write B...  
Part 8: Software architecture -    • Why You Should Think About SOFTWARE ARCHIT...  
Part 9: SOLID principles -    • Uncle Bob’s SOLID Principles Made Easy 🍀 -...  
Part 10: Object creation patterns -    • QUESTIONABLE Object Creation Patterns in P...  

Chapters:
0:00 Introduction
0:47 What is cohesion?
1:37 What is coupling?
3:59 Code example intro
6:39 Analyzing the code
7:56 Information expert
11:19 Reducing coupling
16:32 Improving cohesion
22:40 Recap
25:37 Outro

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