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Python, the language of simplicity and readability, has a powerhouse feature that can make your code more concise and expressive: list comprehensions. If you’re tired of writing lengthy for-loops for basic operations on lists, it’s time to level up your Python skills.
In this article, we’ll explore the world of list comprehensions, unravel their magic, and show you how they can make your code cleaner and more efficient.
Unpacking the Basics: What Are List Comprehensions?
List comprehensions offer a concise way to create lists in Python, allowing you to achieve in a single line what might take several lines with traditional for-loops. Let’s jump into a simple example to illustrate the power of list comprehensions.
Suppose you want to create a list containing the squares of numbers from 1 to 5 using a for-loop:
squares = []
for num in range(1, 6):
squares.append(num ** 2)
Now, let’s achieve the same result using a list comprehension:
squares = [num ** 2 for num in range(1…