Track 3 · Lesson 7 of 11

Nested conditions and guard clauses

Put decisions inside decisions when a second question only makes sense after the first, and flatten deep nesting with guard-style elif chains.

You will be able to

• Write an if statement inside another if or else block
• Read indentation to tell which else belongs to which if
• Flatten nested decisions into an elif chain that handles problems first
• Decide when nesting is clearer than combining conditions with and