/Python/Python change a key in a dictionary

Python change a key in a dictionary

# Basic syntax:
# Approach 1:
dictionary[new_key] = dictionary[old_key]
del dictionary[old_key]

# Approach 2:
dictionary[new_key] = dictionary.pop(old_key)

Source: stackoverflow.com

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

Source: stackoverflow.com

Replace key of dictionary python

a_dict = {"a": 1, "B": 2, "C": 3}

new_key = "A"
old_key = "a"
a_dict[new_key] = a_dict.pop(old_key)

print(a_dict)
OUTPUT
{'B': 2, 'C': 3, 'A': 1}

Similar codes

0 vote165 views1 answer
Python replace all in list
Python
0 vote169 views1 answer
Python matplotlib plot thickness
Python
19 votes155 views1 answer
Python left string
Python
5 votes138 views1 answer
Find last appearance python
Python
4 votes139 views1 answer
Pandas fill empty
Python
12 votes140 views6 answers
Python hello world program
Python
0 vote133 views1 answer
Sns linear regression
Python
1 vote154 views10 answers
Test
Python
1 vote98 views1 answer
Python replace part in large file
Python
69 votes164 views3 answers
How to check if character in string python
Python