Add new keys to a dictionary

Question

Is it possible to add a key to a Python dictionary after it has been created? It doesn't seem to have an .add() method.

Answer 1

>>> d = {'key':'value'} 
>>> print(d) {'key': 'value'} 
>>> d['mynewkey'] = 'mynewvalue' 
>>> print(d) {'mynewkey': 'mynewvalue', 'key': 'value'}