Understanding the Elif Statement in Python

What is the Elif Statement?

The elif statement in Python stands for 'else if'. It is used after an if statement to check additional conditions if the previous conditions were false.

Using elif helps avoid deeply nested if-else blocks, making your code easier to read and maintain.

• Allows multiple condition checks in sequence.
• Executes the block of the first true condition.
• Skips remaining conditions once a true condition is found.

Syntax of Elif Statement

The basic syntax of an if-elif-else block is straightforward and easy to follow.

Each condition is followed by a colon and an indented block of code to execute if the condition is true.

How Elif Works in Practice

When Python encounters an if-elif-else block, it evaluates each condition from top to bottom.

Once a condition evaluates to True, its block runs and the rest of the conditions are skipped.

• Only one block in the if-elif-else chain executes.
• If no conditions are true and else is present, else block runs.
• If no conditions are true and no else block, nothing happens.

Example: Using Elif Statement

Let's look at a practical example that categorizes a number as positive, zero, or negative using if, elif, and else.