stream m3u8 url to rtmp in python using Streamlink

import subprocess
import os
import argparse

def stream(url, path):
  subprocess.call(["streamlink", url, "best", "-o", path])

if __name__ == '__main__':
  parser = argparse.ArgumentParser(description='CLI')
  parser.add_argument('-i', '--input', help='Input URL', required=True)
  parser.add_argument('-o', '--output', help='Output File', required=True)
  args = vars(parser.parse_args())
  
  stream(args['input'], args['output'])