new_contents: import sys
  import ssl
  import urllib.error
  import urllib.request
  
  host = sys.argv[1]
  port = sys.argv[2]
  cafile = sys.argv[3] if len(sys.argv) > 3 else None
  
  try:
      urllib.request.urlopen("https://" + host + ":" + port, cafile=cafile)
  except urllib.error.URLError as exc:
      if not isinstance(exc.reason, ssl.SSLError):
          raise
      print("FAIL")
  else:
      print("OK")
  
subject: Add a Python3 + urllib example