HTTPS Server - Python2

#!/usr/bin/env pythonfrom BaseHTTPServer import BaseHTTPRequestHandler,HTTPServerimport sslimport osclass HTTPRequestHandler(BaseHTTPRequestHandler):    def setup(self):        SSLSocket = ssl.wrap_socket(self.request,server_side=True, keyfile="key.pem", certfile="cert.pem",ca_certs="ca.crt",ssl_version=ssl.PROTOCOL_TLSv1)        self.rfile = SSLSocket.makefile('rb', self.rbufsize)        self.wfile = SSLSocket.makefile('wb', self.wbufsize)    def do_GET(self):        req_time = int(time.time())        clt_IP = self.client_address[0]        self.protocol_version = "HTTP/1.1"        self.server_version = "CenterServiceMock"        self.send_response(200)        self.end_headers()        self.wfile.write("This is ServiceSerice %s"%clt_IP)if __name__=='__main__':    server = HTTPServer(('',443),HTTPRequestHandler)    #Thread.server.serve_forever()    import thread    thread.start_new_thread(server.serve_forever,())