Python Dictionaries in Practice: Building Lookup Tables with Craft Beer Data
Dictionaries aren't just key-value pairs — they're how you join, count, and group data without a library. This tutorial uses a real craft beer dataset (2,410 beers, 558 breweries) to build a lookup table that joins two CSV files, then counts, groups, and summarizes with nothing but built-in Python.
July 8, 2026 in Python, Data Analysis by Mehdi Lotfinejad11 minutes