Add a key in the dictionary

To add a key, we code the dictionary's name, like data, and then the new key's name, like "age" between square brackets.

To associate the new key with a value, we code an equals =, followed by a value like 36.

>>> data = {
...     "name":"Zoc"
... }
>>> data["age"] = 36
>>> data
{'name': 'Zoc', 'age': 36}