my_dict = { 'foo': 42, 'bar': 12.5 } my_dict['foo'] = "Hello" print(my_dict['foo']) #This will give the output: 'Hello'
my_dict = {2:3, 5:6, 8:9} new_dict = {} for k, v in my_dict.items(): new_dict[v] = k
>>> dictionary = { 1: 'one', 2:'two', 3:'three' } >>> dictionary['ONE'] = dictionary.pop(1) >>> dictionary {2: 'two', 3: 'three', 'ONE': 'one'} >>> dictionary['ONE'] = dictionary.pop(1) Traceback (most recent call last): File "<input>", line 1, in <module> KeyError: 1
dict = {value:key for key, value in dict.items()}