Python Tutorials

Python Programs

How to check if a Set is Empty in Python


How to check if a Set is Empty in Python ?

Answer

To check if a Set is empty in Python, you can use the len function or check if the Set is evaluated as False.



✐ Examples

1 Check if Set is Empty Using len Function

In this example,

  1. We define a set named `my_set` containing elements of a specific type.
  2. We use the `len` function to determine the number of elements in the set.
  3. If the length is equal to zero, then the set is empty; otherwise, it contains elements.

Python Program

# Define set
my_set = {'apple', 'banana', 'orange'}

# Check if set is empty using len function
if len(my_set) == 0:
    print('Set is empty')
else:
    print('Set is not empty')

Output

Set is not empty

2 Check if Set is Empty Using Boolean Evaluation

In this example,

  1. We define a set named `my_set` containing elements of a specific type.
  2. We evaluate the set as a boolean expression.
  3. If the set is evaluated as False, then it is empty; otherwise, it contains elements.

Python Program

# Define set
my_set = {'apple', 'banana', 'orange'}

# Check if set is empty using Boolean evaluation
if not my_set:
    print('Set is empty')
else:
    print('Set is not empty')

Output

Set is not empty

Summary

In this tutorial, we learned How to check if a Set is Empty in Python language with well detailed examples.




More Python Sets Tutorials

  1. How to create an Empty Set in Python ?
  2. How to Initialize a Set in Python ?
  3. How to Get Length of a Set in Python ?
  4. How to create a Set of size N in Python ?
  5. How to create a Set of Numbers from 1 to N in Python ?
  6. How to create a Set of integers in Python ?
  7. How to create a Set of Strings in Python ?
  8. How to Access Items in a Set in Python ?
  9. How to get a Random Item in a Set in Python ?
  10. How to Iterate Over a Set in Python ?
  11. How to check if a Set is Empty in Python ?
  12. How to check if a Set is Not Empty in Python ?
  13. How to get Subset from a Set in Python ?
  14. How to check if a Specific Item is present in the Set in Python ?
  15. How to check if a Set contains all the items of Another Set in Python ?
  16. How to Sort Items of a Set in Python ?
  17. How to Copy a Set in Python ?
  18. How to add an Item to a Set in Python ?
  19. How to find Union of Two Sets in Python ?
  20. How to find Intersection of Two Sets in Python ?
  21. How to check if Two Sets are Equal in Python ?
  22. How to Convert a Set of Integers to a Set of Strings in Python ?
  23. How to Convert a Set of Strings to a Set of Integers in Python ?
  24. How to Convert a Set of Floats to a Set of Strings in Python ?
  25. How to Convert a Set of Strings to a Set of Floats in Python ?
  26. How to Filter Items of a Set based on a Condition in Python ?
  27. How to Remove Specific Item from a Set in Python ?
  28. How to Remove Items from Set based on a Condition in Python ?
  29. How to create a Set of Sets in Python ?