stream m3u8 url to rtmp in python (with pyM3U8)

import sys
import subprocess as sp
import pym3u8

def get_segments(m3u8_url):
    playlist = pym3u8.load(m3u8_url)
    segments = playlist.segments
    return segments

def streaming(m3u8_url, rtmp_url):
    segments = get_segments(m3u8_url)
    cmd = ['ffmpeg']
    for segment in segments:
        cmd.extend(['-i', segment.uri])
    cmd.extend(['-c', 'copy'])
    cmd.extend(['-f', 'flv'])
    cmd.append(rtmp_url)
    sp.Popen(cmd, stdout=sp.DEVNULL, stderr=sp.DEVNULL).wait()

if __name__ == '__main__':
    m3u8_url = sys.argv[1]
    rtmp_url = sys.argv[2]
    streaming(m3u8_url, rtmp