Using the del keyword or pop() function can Remove the key from the dictionary Python.
del my_dict['key']OR
my_dict.pop('key', None)Example Remove key from dictionary Python
Simple example code.
Using del keyword
To delete a key regardless of whether it is in the dictionary, use the two-argument form of dict.pop():
This will return my_dict[key] if key exists in the dictionary, and None otherwise. If the second parameter is not specified (i.e. my_dict.pop('key')) and key does not exist, a KeyError is raised.
Deleting the ‘D’ key.
dic1 = {'A': 1, 'B': 5, 'C': 10, 'D': 15}
del dic1['D']
print(dic1)Output:
Using pop() function
To delete a key that is guaranteed to exist use it. This will raise a KeyError if the key is not in the dictionary.
dic1 = {'A': 1, 'B': 5, 'C': 10, 'D': 15}
dic1.pop('D', None)
print(dic1)Output: {‘A’: 1, ‘B’: 5, ‘C’: 10}
How to remove multiple keys from the dictionary?
Answer: Use a for-loop to iterate through a list of keys to remove. At each iteration, use the syntax del dict[key] to remove key from dict.
Same you can use dict.pop(k) to remove the current key k from dict.
dic1 = {'A': 1, 'B': 5, 'C': 10, 'D': 15}
remove = ["A", "B"]
for key in remove:
del dic1[key]
print(dic1)Output: {‘C’: 10, ‘D’: 15}
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.