issubset() function in python by R4R Team

- issubset() is a python function which is applicable only on set data types.
- It compare the two set and check whether one set is subset of another set or not.

Syntax-

set1.issubset(set2)

- It return True if set1 is subset of set2.
- It return False if set1 is not subset of set2.

Example

set1 is {1,2}
set2 is {1,2,3,4}
set1.issubset(set2) will return True.


program-

set1={1,2,3,4}
set2={1,2,3,4,5,6,7,8,9}

print("Set1 is",set1)
print("Set2 is",set2)

print(set1.issubset(set2))
print(set2.issubset(set1))

output-

Set1 is {1, 2, 3, 4}
Set2 is {1, 2, 3, 4, 5, 6, 7, 8, 9}
True
False

-In this program, we have two sets {1,2,3,4} and {1,2,3,4,5,6,7,8,9}, then set1.issubset(set2) will print True value because set1 is subset of set2 but set2 is not a subset of set1 that's by set2.issubset(set1) will print False value.