Update python dictionary (add another value to existing key)

Question

I have simple dictionary with key, value:

d = {\'word\': 1, \'word1\': 2}

I need to add another value (to make a list from values):

Answer 1

It will be easiest if you always use lists, even when you just have a single value. It will just be a list of length 1.

>>> d = {'a': [1], 'b': [2]}
>>> d
{'a': [1], 'b': [2]}
>>>
>>> d['a'].append(5)
>>> d
{'a': [1, 5], 'b': [2]}