Hi Folks!

In certain situations, you need to swap the variables in python scripts. So, let’s say a=5, and b=10. After swapping a=10 and b=5.

Before Swapping:

a=5

b=10

After swapping:

a=10

b=5

Now I’ll show you few interesting methods to swap two variables in python.

- Using a temporary variable
- Using comma operator (built-in method)
- Using Arithmetic operators

**1.Using a temporary variable**

Here we are saving the value to a temporary variable and then assigning it back. Let the temporary variable be “temp”.

a=100

b=50

temp=a // Here, we are storing the value of "a" to temp.

a=b // Assigning the value of b to a.

b=temp // Assigning the value of temp to b.

print(a) print(b)

This method can be used with integers, floats and strings.

**2. Using comma operator**

It’s a pretty simple method to assign the variables.

a=100

b=50

a,b = b,a print(a) print(b)

This method also works with integers, floats and strings.

**3. Using arithmetic operators**

Using arithmetic operators, we can do it in two ways. We can use it as a combo of addition and subtraction; and as a combo of multiplication and division.

**3a. Using the combination of addition and subtraction**

a=10

b=2

a=a+b // a=10+2=12

b=a-b // b=12-2=10

a=a-b // a=12-10=2

print(a)

print(b)

**3b. Using the combination of multiplication and division**

a=100

b=20

a=ab // a=10020=2000

b=a/b // b=2000/20=100

a=a/b // a=2000/100=20

print(int(a))

print(int(b))

These methods work only with integers.

We can use method 2 and method 3 without having a separate variable. If you have any other methods, please comment it!!

Happy scripting!!