issubset() in python
The 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.
Syntax:
A.issubset(B) checks whether A is a subset of B or not. Returns: returns true if A is a subset of B otherwise false.
# Python program to demonstrate working of # issubset(). A = {4, 1, 3, 5} B = {6, 0, 4, 1, 5, 0, 3, 5} # Returns True print(A.issubset(B)) # Returns False # B is not subset of A print(B.issubset(A)) |
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Output:
True False
# Another Python program to demonstrate working # of issubset(). A = {1, 2, 3} B = {1, 2, 3, 4, 5} C = {1, 2, 4, 5} # Returns True print(A.issubset(B)) # Returns False # B is not subset of A print(B.issubset(A)) # Returns False print(A.issubset(C)) # Returns True print(C.issubset(B)) |
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Output:
True False False True
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