Execution Flow

Understanding how Python decides which lines to execute is fundamental to writing correct programs. In Python, indentation is not just for readability; it determines which code belongs together and when it runs. Indentation and Execution When you indent code under an if statement, you are telling Python: "only run these lines if the condition is True." The indentation level defines a block of code that executes together: The two indented print statements form a single block. They either both run (when is_raining is True) or both get skipped (when False). The unindented line runs regardless of the condition. When Python encounters an if-elif-else chain, it follows a predictable sequence of steps to determine which block to execute: Nested Blocks You can place if statements inside other if s