Looping over a Dictionary

When you loop through a dictionary, you only get the keys by default.

Looping over keys


person = {"name": "Alice", "age": 16, "city": "San Francisco"}
 
for key in person:
    print(key)
# name
# age
# city

You can use the key to access each value inside the loop:


for key in person:
    print(key, ":", person[key])
# name : Alice
# age : 16
# city : San Francisco

Use .values() if you only need the values:


for value in person.values():
    print(value)
# Alice
# 16
# San Francisco

Use .items() to get both at once. Each pair comes back as a tuple (key, value):


for key, value in person.items():
    print(key, ":", value)
# name : Alice
# age : 16
# city : San Francisco

.items() is the most common way to loop over a dictionary when you need both the key and the value.

main.py

Output