List Comprehensions, Dict Comprehensions & Generator Expressions - Python Tutorial #14
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009:53
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Taught by Celeste AI - AI Coding Coach
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Learn Python list comprehensions in this beginner-friendly tutorial! 📋
In this lesson, you will learn:
✅ Basic list comprehension syntax
✅ Comprehension with condition (filtering)
✅ Transform with if/else expression
✅ Comprehension vs loop comparison
✅ Nested comprehensions (flatten matrix, create grid)
✅ Dictionary comprehension
✅ Set comprehension
✅ Generator expressions
✅ Mini Project: Word Analyzer
🕐 Timestamps:
0:00 - Introduction
0:22 - List Basics Explained
0:46 - List Basics Demo
2:48 - Advanced Comprehensions Explained
3:12 - Advanced Comprehensions Demo
5:37 - Mini Project Explained
6:01 - Word Analyzer Demo
8:22 - Recap
8:57 - End
💻 Source Code: https://github.com/GoCelesteAI/python_list_comprehensions
📚 Code from this lesson:
# Basic list comprehension
squares = [x ** 2 for x in range(6)]
# Comprehension with condition
evens = [x for x in range(10) if x % 2 == 0]
# Transform with if/else
labels = [f"{x} even" if x % 2 == 0 else f"{x} odd" for x in range(6)]
# Dictionary comprehension
lengths = {w: len(w) for w in words}
# Set comprehension
unique = {n.lower() for n in names}
# Generator expression
gen = (x ** 2 for x in range(5))
🔗 Previous: Lesson 13 - Lambda Functions
🔗 Next: Lesson 15 - File Handling
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Tags
Python, Python tutorial, Python for beginners, learn Python, list comprehension, dictionary comprehension, set comprehension, generator
expression, filter, nested comprehension, word analyzer, python list, python dict comprehension, python generator, CelesteAI
Category
Education