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Learn AI with Python · Lesson

Comprehensions (List, Set, and Dictionary)

Write concise and readable code using comprehensions.

1

Introduction to Comprehensions

Comprehensions are a concise and elegant way to create lists, sets, and dictionaries in Python. They allow you to perform operations and transformations in a single line of code.

In this lesson, you’ll learn how to use list, set, and dictionary comprehensions effectively.

Comprehensions (List, Set, and Dictionary) — illustration 1

2

What Are Comprehensions?

Comprehensions are a concise way to create new collections from existing iterables. They provide a more readable and Pythonic approach compared to loops.

# Basic list comprehension
squares = [x * x for x in range(5)]
print(squares)  # Outputs: [0, 1, 4, 9, 16]

All lessons in this course

  1. Decorators
  2. Generators
  3. Context Managers (with Statements)
  4. Comprehensions (List, Set, and Dictionary)
  5. Iterators and Iterables
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