The difference() method in Python returns the difference between two given sets. Lets say we have two sets A and B, the difference between A and B is denoted by A-B and it contains the elements that are in Set A but in Set B.

## How the difference is calculated between two sets?

Lets say we have two Sets X and Y as follows:

X = {“hello”, 2, 5}

Y = {2, 9, “bye”}

Difference between two sets is denoted by – sign.

Elements that are in Set X but not in Set Y

X-Y = {“hello”, 5}

Elements that are in Set Y but not in Set X

Y-X = {9, “bye”}

## Python Set difference() method Syntax

X.difference(Y)

This is equivalent to X-Y.

**Parameters:** This method takes a Set as parameter.

**Return Value:** It returns a Set that is a difference between two sets. For example X.difference(Y) would return a Set that contains the elements that are in Set X but not in Set Y.

## Python Set difference() method Example

In the following example we have two sets X and Y. We are finding the difference between X & Y and Y & X using the difference() method.

# Set X X = {"hello", 9, 10, "hi"} # Set Y Y = {9, "hi", 6, "BeginnersBook"} # Equivalent to X - Y print("X-Y is:",X.difference(Y)) # Equivalent to Y - X print("Y-X is:",Y.difference(X))

**Output:**

## Difference between Sets using – Operator

We can use the – operator on Sets. This works same as difference() method. Lets take the same example that we have seen above using – operator.

# Set X X = {"hello", 9, 10, "hi"} # Set Y Y = {9, "hi", 6, "BeginnersBook"} # Equivalent to X.difference(Y) print("X-Y is:",X-Y) # Equivalent to Y.difference(X) print("Y-X is:",Y-X)

**Output:**

X-Y is: {10, 'hello'} Y-X is: {'BeginnersBook', 6}

As you can see we got the same output.

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