Real data is rarely one flat list. A very common shape is a list of dictionaries, one dictionary per record, all with the same keys:

people = [
    {"name": "Ada", "born": 1815, "field": "maths"},
    {"name": "Grace", "born": 1906, "field": "computing"},
    {"name": "Alan", "born": 1912, "field": "computing"},
]
for person in people:
    print(f"{person['name']} was born in {person['born']}")

print(people[1]["field"])

You reach inside step by step: people[1] is the second dictionary, and people[1]["field"] is a value inside it. This is exactly the shape of data from the web (JSON), which Unit 38 covers.