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Python replace dictionary key | Example code

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Using the pop() or zip() function we can replace the dictionary key in Python. Even using the del keyword is possible.

Examples of replacing dictionary key in Python

A simple example changes the key of an entry in a Python dictionary.

Using basic and del keyword

Easily done in 2 steps:

dic1 = {'A': 1, 'B': 5, 'C': 10, 'D': 15}


# changing 'A' key
dic1['Z'] = dic1['A']
del dic1['A']

print(dic1)

Output:

Python replace dictionary key

Using pop() function

It will take one step only.

dic1 = {'A': 1, 'B': 5, 'C': 10, 'D': 15}

# changing 'A' key
dic1['Z'] = dic1.pop('A')

print(dic1)

Output: {‘B’: 5, ‘C’: 10, ‘D’: 15, ‘Z’: 1}

Using zip() function

Let’s replace all keys of the dictionary. But this will create a new dictionary.

dic1 = {'A': 1, 'B': 5, 'C': 10, 'D': 15}
kyes = ['X', 'Y', 'Z']

res = dict(zip(kyes, list(dic1.values())))

print(res)

Output: {‘X’: 1, ‘Y’: 5, ‘Z’: 10}

Do comment if you have any doubts or suggestions on this Python dictionary code.

Note: IDE: PyCharm 2021.3.3 (Community Edition)

Windows 10

Python 3.10.1

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.

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