A dictionary

A dict: look things up by name

A dict (dictionary) maps keys to values. Instead of "give me item number 2", you say "give me the value filed under this key", like a coat-check ticket:

owners = {"billing": "ana", "search": "ben"}
print(owners["search"])     # ben — look up by key

To walk every pair, use .items(), which hands you the key and the value together:

for team, person in owners.items():
    print(team, person)

Lists are for order and sequence; dicts are for labelled lookup. The editor opens with your script from the previous step.