---
title: "Loop-while loop (en)"
description: "The while loop: keep running while a condition holds — a counter, and an input loop that asks until 'q'."
url: "https://aaronchan.com/kb/python-while-loop/"
updated: "2026-09-15"
category: "Code-Python (en)"
tags:
  - python
---

# 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

 Copy

```
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

 Copy

```
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!
```