modify key in dictionary python code example
Example 1: modify dict key name python
a_dict[new_key] = a_dict.pop(old_key)
Example 2: change key of dictionary python
>>> 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
Example 3: how to modify the dict in python
d = {1: "one", 2: "three"}
d1 = {2: "two"}
# updates the value of key 2
d.update(d1)
print(d)
d1 = {3: "three"}
# adds element with key 3
d.update(d1)
print(d)