issubset() in python
Python set issubset() method returns True if all elements of a set A are present in another set B which is passed as an argument and returns false if all elements not present.
Python set issubset() Syntax:
A.issubset(B) checks whether A is a subset of B or not.
Python set isubset() Return:
returns true if A is a subset of B otherwise false.
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Python set issubset() expample
Example 1: How Python set issubset() work
Python
# Python program to demonstrate working of# issubset().A = {4, 1, 3, 5}B = {6, 0, 4, 1, 5, 0, 3, 5}# Returns Trueprint(A.issubset(B))# Returns False# B is not subset of Aprint(B.issubset(A)) |
Output:
True False
Example 2: Working with three-set using issubset()
Python
# Another Python program to demonstrate working# of issubset().A = {1, 2, 3}B = {1, 2, 3, 4, 5}C = {1, 2, 4, 5}# Returns Trueprint(A.issubset(B))# Returns False# B is not subset of Aprint(B.issubset(A))# Returns Falseprint(A.issubset(C))# Returns Trueprint(C.issubset(B)) |
Output:
True False False True
