How Python Reads Code Line by Line

Master the 'Instruction Pointer' concept: code executes from the first line to the last.

Pyfessor

Lesson Briefing

"Computers are strictly sequential. They follow your instructions in the exact order you write them. If you try to use data before you've defined it, the system will fail. Visualizing the 'Execution Pointer' moving down the file is the foundation of debugging."