Lessons
Dictionaries: look things up by key
Map keys to values, like a phone book or a price list.
9 min
Looping over dictionaries
Walk through keys, values and pairs, and count things with a dict.
11 min
Nested data: records and groups
Combine lists and dicts to model real-world data.
10 min
Sets: unique values
Drop duplicates and test membership fast with sets.
8 min
Set operations
Combine and compare sets: union, intersection and difference.
9 min
Next module
Functions