Lesson 27. Dictionaries as maps between objects
After reading lesson 27, you’ll be able to
- Understand what a dictionary object data type is
- Add to, remove from, and look up objects in dictionaries
- Understand when to use a dictionary object
- Understand the difference between a dictionary and a list
In the previous lesson, you learned about lists as collections of data with elements at a certain position in the list. Lists are useful when you want to store one group of objects; you saw that you could store a group of names or a group of numbers. But in real life, you often have pairs of data: a word and its meaning, a word and a list of synonyms, a person and their phone number, a movie and its rating, a song and its artist, and many others. ...
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