Reboot Loop

#!/usr/bin/python3

import serial
import pexpect
import pexpect.fdpexpect
import sys
import re
import time
import random

prompt = "root@[^:]+"

serial = serial.Serial()
serial.baudrate = 115200
serial.port = "/dev/ttyUSB0"
serial.open()

def activate_console(p):
    p.sendline("")
    p.expect(prompt)

p = pexpect.fdpexpect.fdspawn(serial, logfile=sys.stdout, encoding="UTF-8")
p.sendline("")
bootcount = 0
while True:
    i = p.expect(["Please press Enter to activate this console.", prompt])
    if i == 0:
        activate_console(p)
    print(f"Boot #{bootcount}")
    time.sleep(random.randrange(3, 180))
    p.sendline("reboot -f")
    bootcount+=1