standard-library

Python

The collections Module: Specialized Containers That Make Python Cleaner

Python's built-in list and dict get you far, but the collections module offers Counter, defaultdict, namedtuple and deque — specialized containers that make everyday code shorter, faster, and clearer.

Python

When if/elif Gets Messy: A Practical Guide to Python's match Statement

Structural pattern matching turns tangled if/elif chains into readable, declarative code. Here's when to reach for match — and when a plain dictionary is still the better call.

Python

Stacks, Queues, and Deques: A Practical Deep Dive into collections.deque

Lists make deceptively bad stacks and queues. Here's why collections.deque exists, when to reach for it, and how it behaves under the hood.

Python

Taming Text with Python's re Module: A Practical Guide to Regular Expressions

Regular expressions look intimidating, but Python's re module makes them approachable. Here is a practical tour of matching, groups, and compiled patterns.