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How to check if a Set is Not Empty in Python


How to check if a Set is Not Empty in Python ?

Answer

In Python, you can use the len() function to check if a Set is not empty.



✐ Examples

1 Check if Set is Not Empty

In this example,

  1. We declare a Set named my_set and initialize it with some elements.
  2. We use the len() function on the Set my_set to determine its length.
  3. If the length of the Set is greater than 0, it means the Set is not empty; otherwise, it is empty.
  4. We print the result to the standard output to indicate whether the Set is not empty or not.

Python Program

my_set = {1, 2, 3} # Or my_set = set() for an empty Set

if len(my_set) > 0:
    print('The Set is not empty')
else:
    print('The Set is empty')

Output

The Set is not empty

2 Check if Empty Set is Not Empty

In this example,

  1. We declare an empty Set named empty_set.
  2. We use the len() function on the Set empty_set to determine its length.
  3. Since the length of the Set is 0, it means the Set is empty.
  4. We print the result to the standard output to indicate that the Set is indeed empty.

Python Program

empty_set = set()

if len(empty_set) > 0:
    print('The Set is not empty')
else:
    print('The Set is empty')

Output

The Set is empty

Summary

In this tutorial, we learned How to check if a Set is Not Empty in Python language with well detailed examples.




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