how to make program stop

Answer 1

Ctrl-C is 'break/interrupt' : use for infinite loops or long calculations.

Ctrl-D is 'end of transmission / stream' . Use to exit some types of input, allowing a previous Ctrl-C to immediately take effect when it's being ignored.

sys.exit() - as long as the program reaches it - not for infinite loops you'd have to 'break' to exit.

Ctrl-Z : (not Windows) - pause process into background, displays interactive shell. View with 'jobs'. Terminate if necessary.

kill / task manager - used externally to terminate when necessary.

Answer 2

Ctlr+C

Answer 3

You can do this with sys.exit()

import sys
sys.exit("Exit message")

Answer 4

input("Enter any Key to exit")

Answer 5

use the exit function eg. exit()