Dictionaries

dictionaries.py

ages = {"Cozy": 21, "Mark": 22, "Dan": 25}
primary = {
    "red": [255, 0, 0],
    "green": [0, 255, 0],
    "blue": [0, 0, 255]
}
print(primary["red"])
print(ages["Cozy"])
# Only Immutable objects can be used as keys to dictionaries
# Dictionaries and Lists are mutable and cannot be used as keys in a dictionary

# DICTIONARY FUNCTIONS
squares = {1: 1, 2: 4, 3: "Error", 4: 16, }
print(squares)
squares[3] = 9
squares[8] = 64
print(squares)
print(4 in squares)
print(4 not in squares)

print(squares.get(9, "Not in Squares"))