Union of Set in Python

The Python perform the union operation on sets using the union() method, the | operator, or the union() function. The union of two sets contains all unique elements from both sets. Here’s how you can use these methods:

Using the union() Method:

# Create two sets
set1 = {1, 2, 3, 4}
set2 = {3, 4, 5, 6}

# Use the union() method to perform the union operation
union_result = set1.union(set2)

# Display the result
print(union_result)

Using the | Operator:

# Create two sets
set1 = {1, 2, 3, 4}
set2 = {3, 4, 5, 6}

# Use the | operator to perform the union operation
union_result = set1 | set2

# Display the result
print(union_result)

Using the union() Function:

You can also use the built-in union() function, which takes one or more sets as arguments and returns their union as a new set:

# Create two sets
set1 = {1, 2, 3, 4}
set2 = {3, 4, 5, 6}

# Use the built-in union() function to perform the union operation
union_result = set.union(set1, set2)

# Display the result
print(union_result)

All three methods will give you the same result:

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

The resulting set contains all unique elements from both set1 and set2. Remember that sets in Python do not allow duplicate elements, so the union operation automatically removes duplicates.