stream with m3u8 to rtmp in python (no ffmpeg)

from subprocess import Popen, PIPE
import requests
import os

def hls2rtmp(hls_url, rtmp_url):
  """
  hls_url: https://baidu.com/hls/stream.m3u8
  rtmp_url：rtmp://baidu.com/live/stream
  """
  rtmpdump_cmd = [
    "rtmpdump",
    "-r", hls_url,
    "-o",
    "- | ffmpeg -i - -c copy -f flv " + rtmp_url
  ]
  p1 = Popen(rtmpdump_cmd, stdout=PIPE)
  p2 = Popen(["ffmpeg", "-i", "-", "-c", "copy", "-f", "flv", rtmp_url], stdin=p1.stdout, stdout=PIPE)
  p1.stdout.close()
  output = p2.communicate()[0]
  
hls2rtmp("https://example