User Input

What is User Input?

User input lets the user type something when the program is running, and the program can use that input to do something.

Syntax:

input("Your message here")

It shows a message to the user and waits for input.

Example 1: Get a Name

name = input("What is your name? ")
print("Hello, " + name + "!")

Output:

What is your name? John
Hello, John!

Example 2: Get a Number (and convert it to int)

By default, input() gives you a string, even if you type numbers.
To do math, you must convert it using int() or float().

age = input("Enter your age: ")
print("You are " + age + " years old.")

To use it as a number:

age = int(input("Enter your age: "))
print("Next year, you’ll be", age + 1)

Example 3: Add Two Numbers

num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))
sum = num1 + num2
print("Sum is:", sum)

Summary