0
Q:

python delete key from dictionary

del dictionary['key']
16
>>> # 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'}
6
# 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}
2
mydict = {'score1': 41, 'score2': 23, 'score3': 45}

del mydict['score2']
print(mydict)
{'score1': 41, 'score3': 45}
3
''' 
Deleting an entry from dictionary using del 
'''
# If key exist in dictionary then delete it using del.
if "at" in wordFreqDic:
    del wordFreqDic["at"]
    
print("Updated Dictionary :" , wordFreqDic)      
3
# Python code to demonstrate 
# removal of dict. pair  
# using del 
  
# Initializing dictionary 
test_dict = {"Arushi" : 22, "Anuradha" : 21, "Mani" : 21, "Haritha" : 21} 
  
# Printing dictionary before removal 
print ("The dictionary before performing remove is : " + str(test_dict)) 
  
# Using del to remove a dict 
# removes Mani 
del test_dict['Mani'] 
  
# Printing dictionary after removal 
print ("The dictionary after remove is : " + str(test_dict)) 
  
# Using del to remove a dict 
# raises exception 
del test_dict['Manjeet'] 
1
my_dict.pop('key', None)
0

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