Increment by One

To increment the value of a variable by one in Python, we can use Addition Assignment operator, and pass the variable and value 1 as operands to it.

The syntax to increment the value of x by one is

x += 1

This is just a short hand for the following assignment statement.

x = x + 1

We can use the above syntax as well to increment the value of a variable by one.

In this example, we will read a number into x from user, and increment the value in x by one using Addition Assignment operator.

Python Program

x = int(input('enter a number : '))
x += 1
print('after increment :', x)

Output

enter a number : 4
after increment : 5

In this tutorial of Python Examples, we learned how to increment the value of a variable by one.