Python Set issuperset() Method with Examples

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Prerequisite:

Python set() Function with Examples

Set issuperset() Method in Python:

If all items in the specified set exist in the original set, the issuperset() method returns true; otherwise, it returns False.

For Example,

Let p = {1, 2, 3}

q= {1, 2, 3, 4, 5, 6}

Here all the elements of set ‘p ‘ are in the set ‘q’ . Hence set q is the superset of set p.

And set p is the subset of set q.

Syntax:

set.issuperset(set)

Parameters

set: This is  Required. It is the set to look for items that are similar.

Return Value:

issuperset() gives

  • If A is a superset of B, then this statement is true.
  • If A is not a superset of B, the statement is false.

Examples:

Example1:

Input:

Given first set = {20, 30, 100}
Given second set = {100, 20, 80, 70, 30}

Output:

Check if the given second set is superset of the first set: True

Example2:

Input:

Given first set = {20, 30, 100, 12, 15, 16}
Given second set = {12, 15, 16}

Output:

Check if the given second set is superset of the first set: False

Explanation:

Here the first set is the superset of the second set. 
But Not the second set is a superset of the first. Hence it returns False.

Set issuperset() Method with Examples in Python

Method #1: Using Built-in Functions (Static Input)

Approach:

  • Give the first set as static input and store it in a variable.
  • Give the second set as static input and store it in another variable.
  • Apply the issuperset() method to the given first and second sets to check if the given second set is the superset of the first set or not.
  • Store it in another variable.
  • Print the above result.
  • The Exit of the Program.

Below is the implementation:

# Give the first set as static input and store it in a variable.
fst_set = {20, 30, 100}
# Give the second set as static input and store it in another variable.
scnd_set = {100, 20, 80, 70, 30}
# Apply the issuperset() method to the given first and second sets to check if the
# given second set is the superset of the first set or not.
# Store it in another variable.
rslt = scnd_set.issuperset(fst_set)
# Print the above result.
print("Check if the given second set is superset of the first set:", rslt)

Output:

Check if the given second set is superset of the first set: True
Similarly, check for the other example
fst_set = {20, 30, 100, 12, 15, 16}
scnd_set = {12, 15, 16}
rslt = scnd_set.issuperset(fst_set)
print("Check if the given second set is superset of the first set:", rslt)

Output:

Check if the given second set is superset of the first set: False

Explanation:

Here the first set is the superset of the second set. 
But Not the second set is a superset of the first. Hence it returns False.

Method #2: Using Built-in Functions (User Input)

Approach:

  • Give the first set as user input using set(),map(),input(),and split() functions.
  • Store it in a variable.
  • Give the second set as user input using set(),map(),input(),and split() functions.
  • Store it in another variable.
  • Apply the issuperset() method to the given first and second sets to check if the given second set is the superset of the first set or not.
  • Store it in another variable.
  • Print the above result.
  • The Exit of the Program.

Below is the implementation:

# Give the first set as user input using set(),map(),input(),and split() functions.
# Store it in a variable.
fst_set = set(map(int, input(
   'Enter some random Set Elements separated by spaces = ').split()))
# Give the second set as user input using set(),map(),input(),and split() functions.
# Store it in another variable.
scnd_set = set(map(int, input(
   'Enter some random Set Elements separated by spaces = ').split()))

# Apply the issuperset() method to the given first and second sets to check if the
# given second set is the superset of the first set or not.
# Store it in another variable.
rslt = scnd_set.issuperset(fst_set)
# Print the above result.
print("Check if the given second set is superset of the first set:", rslt)

Output:

Enter some random Set Elements separated by spaces = 10 12 14 16
Enter some random Set Elements separated by spaces = 12 13
Check if the given second set is superset of the first set: False