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

You can create your dictionary assigning a list to each key

d = {'word': [1], 'word1': [2]}

and then use the following synthases to add any value to an existing key or to add a new pair of key-value:

d.setdefault(@key,[]).append(@newvalue)

For your example will be something like this:

d = {'word': [1], 'word1': [2]}
d.setdefault('word',[]).append('something')
d.setdefault('word1',[]).append('something1')
d.setdefault('word2',[]).append('something2')   
print(d)
{'word': [1, 'something'], 'word1': [2, 'something1'], 'word2': ['something2']}