Chaining if-elif-else

Basic elif Syntax With a score of 85, the first condition (score >= 90) is False. Python moves to the first elif (score >= 80), which is True, so grade becomes "B". All remaining elif and else blocks are skipped. Order Matters Python evaluates conditions from top to bottom and stops at the first True condition. The order of your conditions is crucial: If you reversed the order and checked age < 65 first, everyone under 65 would be classified as "adult" regardless of whether they are children or teenagers. Always order conditions from most specific to most general. Multiple elif Clauses You can have as many elif clauses as needed. This is useful for categorizing data into multiple buckets. In data engineering, this pattern appears when you need to classify records into different categories,