When should I use if and elif in Python?

When should I use if and elif in Python?

You should use 'if' for the initial condition and 'elif' for additional conditions that are mutually exclusive.

Can you give me an example of how to use them?

Sure! Here's a simple example:

age = 20
if age < 18:
    print('You are a minor.')
elif age < 65:
    print('You are an adult.')
else:
    print('You are a senior.')

What happens if I don't use elif?

If you don't use 'elif', you can only check one condition at a time. You would need multiple 'if' statements, which can lead to less efficient code.

Are there any performance differences between using if and elif?

Yes, using 'elif' can be more efficient because it stops checking conditions once a true condition is found, while multiple 'if' statements will check all conditions.