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)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)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: 1how to change key to value and versa in python dictionary
dict = {value:key for key, value in dict.items()}Copyright © 2021 Codeinu
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