/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 vote350 views1 answer
Pseudo-random input signal python
Python
-3 votes347 views1 answer
How to install chatterbot from github
Python
0 vote298 views3 answers
Null_previous_rank = f500[f500['previous rank'].isnull()][['company','rank','previous rank']]
Python
3 votes288 views1 answer
Pandas sheet name
Python
0 vote345 views1 answer
Import sys locate python = sys.exec_prefix print(locate python)
Python
0 vote355 views1 answer
Python how to make integer show 2 numbers
Python
0 vote409 views1 answer
Customise the django rest api view
Python Django
-2 votes328 views1 answer
Center buttons tkinter
Python
0 vote381 views1 answer
Windows 10 reset django migrations
Python
-2 votes348 views1 answer
Python: raise error
Python