python remove a key from a dictionary
# Basic syntax:
del dictionary['key']
# Example usage:
dictionary = {'a': 3, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
del dictionary['c'] # Remove the 'c' key:value pair from dictionary
dictionary
--> {'a': 3, 'b': 2, 'd': 4, 'e': 5}python delete key from dictionary
>>> # initialise a dictionary with the keys “city”, “name”, “food”
>>> person1_information = {'city': 'San Francisco', 'name': 'Sam', "food": "shrimps"}
>>> # delete the key, value pair with the key “food”
>>> del person1_information["food"]
>>> # print the present personal1_information. Note that the key, value pair “food”: “shrimps” is not there anymore.
>>> print(person1_information)
{'city': 'San Francisco', 'name': 'Sam'}python remove key from dict
my_dict.pop('key', None)python delete value from dictionary
dict = {'an':30, 'example':18}
#1 Del
del dict['an']
#2 Pop (returns the value deleted, but can also be used alone)
#You can optionally set a default return value in case key is not found
dict.pop('example') #deletes example and returns 18
dict.pop('test', 'Key not found') #returns 'Key not found'how to remove an element from dictionary using his value python
a_dictionary = {"one": 1, "two" : 2, "three": 3}
desired_value = 2
for key, value in a_dictionary.items():
if value == desired_value:
del a_dictionary[key]
break
print(a_dictionary)
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OUTPUT
{'one': 1, 'three': 3}Copyright © 2021 Codeinu
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