title: How to host websocket app python server on Heroku without Flask?
body: <p>So I'm making a school project and I have to make a python server and android client. So I've already created a server using websockets with python 3 (I'm not using Flask or socket.io and etc, just regular websockets) and a client in android studio. I ran everything locally and it works great! </p>
  
  <p>So now I want to go up in a level a little bit, I want to host my server on Heroku. I tried but I have some problems with that... As I mentioned, I'm using only websockets and not Flask and that means that I need to specify a host ip/url and a port. But when I host the server on Heroku it says that "address already in use".</p>
  
  <p>Does anyone know how solve it?</p>