stream m3u8 url to rtmp in python with pyffmpeg

from pyffmpeg import FFmpeg

def stream(url):
    ff = FFmpeg(
        inputs={url: None},
        outputs={'rtmp://localhost/app/test': ['-c:v', 'libx264', '-c:a', 'aac', '-f', 'flv']})
    ff.run()

stream('http://localhost:8000/test.m3u8')