Python: Remove a key from a dictionary

Last update on March 27 2025 12:57:21 (UTC/GMT +8 hours)

12. Remove a Key from a Dictionary

Write a Python program to remove a key from a dictionary.

Visual Presentation:

Sample Solution:

Python Code:

# Create a dictionary 'myDict' with key-value pairs.
myDict = {'a': 1, 'b': 2, 'c': 3, 'd': 4}

# Print the original dictionary 'myDict'.
print(myDict)

# Check if the key 'a' exists in the 'myDict' dictionary.
if 'a' in myDict:
    # If 'a' is in the dictionary, delete the key-value pair with the key 'a'.
    del myDict['a']

# Print the updated dictionary 'myDict' after deleting the key 'a' (if it existed).
print(myDict)

Sample Output:

{'a': 1, 'b': 2, 'c': 3, 'd': 4}
{'b': 2, 'c': 3, 'd': 4}

For more Practice: Solve these Related Problems:

• Write a Python program to remove a specified key from a dictionary using the del statement.
• Write a Python program to remove a key from a dictionary using the pop() method and return its value.
• Write a Python program to implement a function that deletes a key from a dictionary and handles the case when the key does not exist.
• Write a Python program to remove multiple keys from a dictionary by iterating over a list of keys to delete.

Python Code Editor:

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