Python for Beginners - Lesson 8: Condition-Based Loops with while (2025)

Veröffentlicht am: 16 Dezember 2025
auf dem Kanal: TeachSmart AI Academy

What if you need to repeat an action, but you don't know how many times? In Lesson 8 of our Python for Beginners course, you'll master the **`while` loop**, the perfect tool for condition-based repetition.

Unlike `for` loops that run a set number of times, `while` loops keep going as long as a condition is true. You'll learn the anatomy of a `while` loop, how to control it with `break` and `continue`, and the critical skill of how to avoid the dreaded infinite loop! We'll build a real-world command menu system and give you a clear guide on when to choose a `while` loop over a `for` loop.

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✅ *Interactive Coding Exercises:* Build the Number Guessing Game and Input Validator from the lesson challenges.
✅ *Downloadable Slide Decks:* Get all 13 pages of the beautiful slides from this lesson.
✅ *Quizzes & Assessments:* Test your knowledge of `while` loops, `break`, and `continue`.
✅ *24/7 AI Tutor:* Stuck in an infinite loop? Our AI Tutor is here to help you debug your conditions.
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🕒 *Timestamps:*

00:00 - Introduction: A Different Kind of Loop
00:55 - The `while` Loop: Repetition Based on a Condition
02:00 - Anatomy of a `while` Loop (Keyword, Condition, Colon, Indentation)
03:10 - Example: Countdown Timer
04:15 - The Gatekeeper Analogy
05:00 - Seizing Control: The `break` Statement
06:10 - Example: Password Login System
07:20 - Skipping a Turn: The `continue` Statement
08:30 - Example: Processing Only Positive Numbers
09:40 - The Danger: Understanding the Infinite Loop
10:50 - How to Tame the Infinite Loop: A Pre-Flight Checklist
12:00 - Case Study: Building a Simple Command Menu
13:30 - The Guiding Principle: When to Use `for` vs. `while`
14:45 - Your Turn: Two Classic `while` Loop Challenges
15:30 - Challenge 1: The Number Guessing Game
16:15 - Challenge 2: The Input Validator
17:00 - Lesson 8 Summary & What's Next

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