Python Tip of the Day: Fast Data Lookup with Dictionaries

Fast Data Lookup with Dictionaries

Author: Jeremy Morgan
Published: November 11, 2024


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Dictionaries are your go-to for quick data retrieval using keys.

# Use a dictionary for quick lookups
phone_book = {'Alice': '555-1234', 'Bob': '555-5678'}
print(phone_book['Alice'])  # Output: 555-1234

“Python Tip of the Day: Fast Data Lookup with Dictionaries”


The Python Tip of the Day is a daily series published in the month of November. The tips are designed to help you become a better Python programmer. I post tips like this and more every single day on X. Let’s connect!


Coding with AI

AI changed software development. This is how the pros use it.

Written for working developers, Coding with AI goes beyond hype to show how AI fits into real production workflows. Learn how to integrate AI into Python projects, avoid hallucinations, refactor safely, generate tests and docs, and reclaim hours of development time—using techniques tested in real-world projects.

See What's Inside