Add to a dictionary in python?

Question

Hi,

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

dictionary[key] = value

Answer 2

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

Answer 3

Yeah, it's pretty easy. Just do the following:

dict["key"] = "value"

Answer 4

>>> x = {1:2}
>>> print x
{1: 2}

>>> x.update({3:4})
>>> print x
{1: 2, 3: 4}