Answer 1

To be more precise, the code is *interpreted* top to bottom. So if you define a function or a class at the beginning of your program, it is interpreted but not executed until called.

A block of code is a single semantic group of lines of code - a class definition, a for loop, an if statement - with all indented lines that come afterwards.

Answer 2

By default code executes from top to bottom (After every spacing, etc). But there are special cases where it doesnt for a few lines in a code.

Answer 3

top to bottom

Answer 4

Just adding is code contains a error (not syntax error) code is normal interpreted before the error line.