keepalive.py

import sys
import subprocess

stream, name, poll_first, poll_rest = sys.argv[1:]

first = True
poll = poll_first
count = 0
print(stream, name.format(count), poll_first, poll_rest)
#input()
while True:
    subprocess.run(["streamlink", stream, "best", "--hls-live-edge", "99999",
        "--hls-segment-threads", "6", "--retry-streams", poll, "-o", name.format(count)])
    if first:
        poll = poll_rest
        first = False
    count += 1