11.2.4. Dictionaries in Python

• Objects retrieved by key name
• Unordered and cannot be sorted
• Examples:

prices_lookup = {"apple":2.99,"oranges":1.99,"milk":5.80}

prices_lookup["apple"]

2.99

d = {"k1":123, "k2":[0,1,2], "k3":{"insideKey":100}}

d["k3"]

{"insideKey": 100}

d = {"k1":100,"k2":200}

d["k3"]=300

d

{'k1': 100, 'k2': 200, 'k3': 300}