What are some examples of the DRY principle in Python?

What are some examples of the DRY principle in Python?

The DRY principle stands for 'Don't Repeat Yourself.' It emphasizes reducing repetition in code. One example in Python is using functions to encapsulate repeated logic.

Can you show me a code example?

Sure! Here's a simple example:

def calculate_area(width, height):
    return width * height

# Using the function instead of repeating the calculation
area1 = calculate_area(5, 10)
area2 = calculate_area(3, 7)

What if I need to change the calculation later?

If you need to change the calculation, you only have to update the function definition, which makes your code easier to maintain.

Are there any libraries that help with this?

Yes, libraries like pandas and numpy promote DRY principles by providing built-in functions for common operations, reducing the need for repetitive code.