What you will learn
- Create and unpack tuples.
- Understand tuple immutability.
- Use sets for unique values and fast membership checks.
- Choose an appropriate collection type.
The code from this chapter
Type these programs yourself. The predictions below are the exercises; the explanations are in the book.
9.1 Tuples
TPRM Lab 9.1: Unpack a Tuple
Type this into a file, predict the output, then run it.
point = (3, 4)
x, y = point
print(x)
print(y)9.2 Sets
Type this into a file, predict the output, then run it.
expected = {"Ana", "Leo", "Mia"}
arrived = {"Leo", "Mia", "Sam"}
print(expected & arrived)
print(expected - arrived)
print(arrived - expected)TPRM Lab 9.2: Remove Duplicates
Type this into a file, predict the output, then run it.
names = ["Ana", "Leo", "Ana", "Mia", "Leo"]
unique_names = set(names)
print(unique_names)
print(len(unique_names))