old_contents: import idiokit
  from idiokit.http.server import serve_http
  from idiokit.http.handlers.router import Router
  from idiokit.http.handlers.redirect import redirect
  from idiokit.http.handlers.filehandler import filehandler, BakedFileSystem
  
  
  @idiokit.stream
  def ping(addr, request, response):
      yield response.write("PONG\n")
  
  
  if __name__ == "__main__":
      router = Router({
          "ping": ping,
          "pong": redirect("/ping"),
          "/": filehandler(
              BakedFileSystem({
                  "index.html": "Hello world!\n"
              }),
              index="index.html"
          )
      })
      idiokit.main_loop(serve_http(router, "127.0.0.1", 8080))
  
new_contents: import idiokit
  from idiokit.http.server import serve_http
  from idiokit.http.handlers.router import Router
  from idiokit.http.handlers.redirect import redirect
  from idiokit.http.handlers.filehandler import filehandler, BakedFileSystem
  
  
  @idiokit.stream
  def ping(addr, request, response):
      yield response.write("PONG\n")
  
  
  if __name__ == "__main__":
      router = Router({
          "ping": ping,
          "pong": redirect("/ping"),
          "/": filehandler(
              BakedFileSystem({
                  "index.html": "Hello world!\n"
              }),
              index="index.html"
          )
      })
  
      print "Serving http://127.0.0.1:8080/"
      idiokit.main_loop(serve_http(router, "127.0.0.1", 8080))
  
subject: Add a help text.