docs: def from_url(location):
      """ HTTP request for page at location returned as string
  
      malformed url returns ValueError
      nonexistant IP returns URLError
      wrong subnet IP return URLError
      reachable IP, no HTTP server returns URLError
      reachable IP, HTTP, wrong page returns HTTPError
      """
      req = urllib.request.Request(location)
      with urllib.request.urlopen(req) as response:
          the_page = response.read().decode()
          return the_page