1 Python range

1. What is range()?

range() is used to generate a sequence of numbers.

In simple words:
👉 range() gives numbers one by one
👉 It is mostly used with loops

2. Simple range() Example

Example

Output:

👉 Starts from 0 by default.

3. range(start, stop)

Example

Output:

👉 stop number is not included.

4. range(start, stop, step)

Example

Output:

5. range() with While Loop

Example

👉 range() logic done manually.

6. Convert range to List

Example

Output:

7. range() with Negative Step

Example

Output:

8. range() with Length

Example

9. range() in Real Programs

Example: Table of 2

10. Common Beginner Mistakes

❌ Expecting Stop Value Included

👉 5 is not included.

❌ Using Zero Step

❌ Error.

11. Simple Practice Examples

Example 1: Even Numbers

Example 2: Countdown

Example 3: Sum of Numbers

12. Summary (Python range())

✔ Generates number sequence
✔ Used mainly with loops
✔ Stop value is not included
✔ Supports step value
✔ Very useful in loops

📘 Perfect for Beginner eBook

This chapter is ideal for:

• Python beginner books

• School & college students

• Self-learners

If you want next, I can write:

• Break & Continue

• Loop Exercises

• Comprehensions

• Mini Python Projects

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