How to write Python program that simply emits a beep sound when run.

Answer 1

To help others answer, please identify the target OS.

Answer 2

Assuming your motherboard has a built in buzzer and it is active,
print('\a')
Should make it beep
It is called the bell charachter

In java is:
System.out.print("\0007");

Some more info on escape chars here: https://linuxconfig.org/list-of-JUMP_LINK__&&__python__&&__JUMP_LINK-escape-sequence-characters-with-examples