PiCamera video stream

Hello, A couple of days I try to get a video stream based on Video Streaming with Raspberry Pi Camera.
I followed the post and code given. I keep getting by calling the http://my_ip_adress_of_the_RPi:8000
the message IP-adress — [Date and time] — “GET / GTTP/1.1″301 –
[Date and Time] — “Get /index.html HTTP/1.1″200 –
After closing (Ctrl-C) I get comments on ,module> server.serve_forever()
and two messages on Python 3.7/selectors.select(poll_interval) and fd_event_list = self._selector.poll(timeout)
Why do I do wrong? Can you help, please. I checjed the code several times for errors.
Take care,
Harm K. Schutte