python add a new key value to a dictionary code example

Example 1: add new keys to a dictionary python

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

Example 2: add value to dictionary python

dict[key] = value

Example 3: adding one element in dictionary python

mydict = {'score1': 41,'score2': 23}
mydict['score3'] = 45			# using dict[key] = value
print(mydict)

Example 4: add values to dictionary key python

key = "somekey"
a.setdefault(key, [])
a[key].append(2)