Loop-while loop (en)

Use a while loop when you don’t know how many times you’ll repeat — it keeps running as long as the condition is true. Here are two examples: a counter that runs 5 times, and an input() loop that keeps asking until you type q.

Example 1: counter — run 5 times #

count = 1

while count <= 5:
    print("Count is:", count)
    count += 1

output:

Count is: 1
Count is: 2
Count is: 3
Count is: 4
Count is: 5

Example 2: keep asking until ‘q’ — break out #

while True:
    user_input = input("Enter 'q' to quit: ")
    if user_input == "q":
        print("Bye!")
        break

output:

Enter 'q' to quit: hello
Enter 'q' to quit: world
Enter 'q' to quit: q
Bye!