Python ships with a built-in collections module that fixes the most common pain points with plain dicts and lists. Most beginners reach for a regular dict or list out of habit — and then write ten extra lines of boilerplate to work around their limitations. This article walks you through the six most useful types in collections , with clear before/after examples so you know exactly when to swap. 🎁 Free: AI Publishing Checklist — 7 steps in Python · Full pipeline: germy5.gumroad.com/l/xhxkzz (pay what you want, min $9.99) Why the collections module exists Plain dicts raise KeyError when you access a missing key. Plain lists are slow when you need to insert or remove from the front. Tuples have no field names, so point[0] tells you nothing. The collections module exists to solve these exact problems without requiring you to write a class or import a heavy library.…