How do nested if-else statements work in Python?

How do nested if-else statements work in Python?

Nested if-else statements allow you to check multiple conditions in Python. You can place an if-else statement inside another if or else block.

Can you give me an example of nested if-else in Python?

Sure! Here's a simple example:

age = 20
if age >= 18:
    print('You are an adult.')
    if age >= 65:
        print('You are a senior citizen.')
    else:
        print('You are not a senior citizen.')
else:
    print('You are a minor.')

What happens if I don't use the else statement?

If you don't use the else statement, the code will only execute the if block if the condition is true. If it's false, nothing will happen.

Are there any best practices for using nested if-else?

Yes, it's best to keep your code readable. Avoid deep nesting as it can make the code hard to follow. Consider using functions or switch-case alternatives if applicable.