python change a key in a dictionary

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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)
a_dict = "a": 1, "B": 2, "C": 3

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

'B': 2, 'C': 3, 'A': 1
>>> 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


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Hi, I'm Ranjith a full-time Blogger, YouTuber, Affiliate Marketer, & founder of Coder Diksha. Here, I post about programming to help developers.

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