1 Python If Statement

1. What is an If Statement?

An if statement is used to make decisions in Python.

In simple words:
👉 Python checks a condition
👉 If the condition is True, Python runs the code
👉 If the condition is False, Python skips it

2. Simple If Statement

Example

👉 Output will appear only if the condition is true.

3. How If Statement Works

• Python reads the condition

• If the condition is True → code runs

• If the condition is False → code does not run

4. If Statement with Comparison Operators

Example

5. If Statement with Boolean Value

Example

6. If Statement with String Comparison

Example

7. Multiple Conditions Using and

Example

8. Multiple Conditions Using or

Example

9. Nested If Statement

An if inside another if is called nested if.

Example

10. Important Rule: Indentation

Python uses indentation (spaces) to understand blocks.

❌ Wrong

✔ Correct

11. Common Beginner Mistakes

❌ Using = Instead of ==

❌ Forgetting Colon :

12. Simple Practice Examples

Example 1: Check Number Positive

Example 2: Check Password

Example 3: Check Even Number

13. Summary (Python If Statement)

✔ Used for decision making
✔ Runs code only if condition is true
✔ Uses comparison operators
✔ Indentation is very important
✔ Very useful in real programs

📘 Perfect for Beginner eBook

This chapter is ideal for:

• Python beginner books

• School & college students

• Self-learners

If you want next, I can write:

• If–Else Statement

• Elif Statement

• Nested If–Else

• If Statement Exercises

Just tell me 😊