Check if a Dictionary is Empty using not operator

Check if a Dictionary is Empty using bool()

Check if a Dictionary is Empty using len()

This task can also be performed using the not operator that checks for a dictionary existence, this evaluates to True if any key in the dictionary is not found.

Python3

# initializing empty dictionary
test_dict = {}
 
# printing original dictionary
print("The original dictionary : " + str(test_dict))
 
# using not operator
# Check if dictionary is empty
res = not test_dict
 
# print result
print("Is dictionary empty ? : " + str(res))

Output:

The original dictionary : {}
Is dictionary empty ? : True

The time complexity of this program is O(1), as it involves a constant number of operations.

The auxiliary space complexity of this program is also O(1), as it only uses a constant amount of additional memory to store the dictionary and the result variable.

Python | Check if dictionary is empty

Sometimes, we need to check if a particular dictionary is empty or not. In the web development domain in which we sometimes need to test for results of a particular query or check whether we have any key to add info into a database. Let’s discuss certain ways in which this task can be performed in Python.

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#Python dictionary-programs #Python #Python Programs #python

Check if a Dictionary is Empty using bool()

Check if a Dictionary is Empty using len()

Check if a Dictionary is Empty using not operator

Python3

Python | Check if dictionary is empty

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