Python & FastAPI•Part 2: Python Core Language, Internals & Runtime (6 - 25)
List, Dict, and Set Comprehensions:
In Simple Words: Concise, readable syntax for creating collections from iterables with inline filtering.
python
# List comprehension:
squares = [x * x for x in range(10) if x % 2 == 0]
# Dict comprehension:
user_map = {u["id"]: u["name"] for u in [{"id": 1, "name": "Alice"}]}
# Set comprehension:
unique_lengths = {len(w) for w in ["apple", "banana", "pear", "apple"]}