Why do they put >>> before print?

Answer 1

Maybe to represent the command kine interpreter.

Answer 2

The >>> prompt is the Python interpreter’s way of asking you, “What do you want me to do next?” and it is called "chevron" prompt.

- or -

>>> is called a prompt, which means it’s something the computer displays to tell you it’s ready for your instructions. You can type things into that window, and the computer will obey them when it understands your commands.