Check if a Dictionary is Empty using bool()
The bool function can be used to perform this particular task. As the name suggests it performs the task of converting an object to a boolean value, but here, passing an empty string returns a False, as a failure to convert something that is empty.
Python3
# initializing empty dictionary test_dict = {} # printing original dictionary print ( "The original dictionary : " + str (test_dict)) # using bool() # Check if dictionary is empty res = not bool (test_dict) # print result print ( "Is dictionary empty ? : " + str (res)) |
Output :
The original dictionary : {} Is dictionary empty ? : True
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.