python change dictionary key

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showing results for - "python change dictionary key"
Hendrik
06 Oct 2016
1a_dict[new_key] = a_dict.pop(old_key)
Paul
04 Jan 2018
1# Basic syntax:
2# Approach 1:
3dictionary[new_key] = dictionary[old_key]
4del dictionary[old_key]
5
6# Approach 2:
7dictionary[new_key] = dictionary.pop(old_key)
Ewen
01 Apr 2016
1my_dict  =  {
2   'foo': 42,
3   'bar': 12.5
4}
5my_dict['foo']  =  "Hello"
6print(my_dict['foo'])
7#This will give the output:
8
9'Hello'
Emilio
02 Apr 2020
1dictionary[new_key] = dictionary[old_key]
2del dictionary[old_key]
Cheri
02 Nov 2019
1>>> dictionary = { 1: 'one', 2:'two', 3:'three' }
2>>> dictionary['ONE'] = dictionary.pop(1)
3>>> dictionary
4{2: 'two', 3: 'three', 'ONE': 'one'}
5>>> dictionary['ONE'] = dictionary.pop(1)
6Traceback (most recent call last):
7  File "<input>", line 1, in <module>
8KeyError: 1
Niko
23 Apr 2020
1d = {1: "one", 2: "three"}
2d1 = {2: "two"}
3
4# updates the value of key 2
5d.update(d1)
6print(d)
7
8d1 = {3: "three"}
9
10# adds element with key 3
11d.update(d1)
12print(d)
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