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Python

Dictionaries and sets

Use keys for lookup and sets for unique values.

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Where this chapter sits in the course

Lessons

Chapter 9 of 22 · 7 short lessons · 24 min
  1. 1Dictionary keys and values3 min
  2. 2Modifying dictionaries3 min
  3. 3Missing dictionary keys3 min
  4. 4Dictionary iteration3 min
  5. 5Sets and membership3 min
  6. 6Set operations3 min
  7. 7Challenge: Dictionaries and sets6 min

What you'll learn

  • Store and retrieve values by key
  • Use sets for uniqueness and membership

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