How to Do Code Refactoring in Python with Examples 🛠️🐍

Code refactoring is like spring cleaning for your code. You're not changing what it does, but how it does it. Cleaner, more readable, and more efficient code is what we aim for! Let's dive into refactoring in Python. 🌊

1. Why Refactor? 🤔

• Readability: Clearer code helps both the current developer and future developers understand the logic easily.
• Performance: Efficient code runs faster and uses fewer resources.
• Maintainability: It's easier to extend, fix, or update well-structured code.

2. Refactoring Techniques 🎨

a. Renaming Variables 🏷️

Clear and meaningful variable names help in understanding the purpose of the variable.

# Before Refactoring
a = 3.14159
r = 5

c = 2 * a * r

# After Refactoring
PI = 3.14159
radius = 5

circumference = 2 * PI * radius

b. Function Decomposition 🧩

Breaking down a long function into smaller, more manageable pieces.

# Before Refactoring
def process_data(data):
    # filter data
    filtered_data = [x for x in data if x > 10]
    # double data
    doubled_data = [x*2 for x in filtered_data]…