Python Basics: predict, run and fix · Try it free

▶ Try it freePython Basics · Chapter 2 · input() and type conversion

Predict the output, then run it

x = "7"
y = "3"
print(x + y)

What does this program print?

Code (you can edit this)

a = input("First number: ")
b = input("Second number: ")
print(a + b)

Typed input

Press ▶ Run to see what happens.

Runs on a mini Python built for this demo, right in your browser. The full course runs real Python 3.

Read two whole numbers with input() and print their sum like this: Sum: 7

a = 
b = 
print("Sum:", a + b)

17 chapters from your first print() to a capstone project, with code you can run and exercises that check themselves.