问使用coapthon库将资源动态添加到python服务器

EN

 try:
    res = self.root[actual_path]
 except KeyError:
   res = None
 if res is None:
   if len(paths) != i:
       return False
   resource.path = actual_path
       self.root[actual_path] = resource 

from coapthon.resources.resource import Resource
from coapthon.server.coap import CoAP
from threading import Thread
import sys

class Sensor(Resource):
  def __init__(self,name="Sensor",coap_server=None):
    super(Sensor,self).__init__(name,coap_server,visible=True,observable=True,allow_children=True)
    self.payload = "This is a new sensor"
    self.resource_type = "rt1"
    self.content_type = "application/json"
    self.interface_type = "if1"
    self.var = 0

  def render_GET(self,request):
    self.payload = "new sensor value ::{}".format(str(int(self.var+1)))
    self.var +=1
    return self

class Actuator(Resource):
  def __init__(self,name="Actuator",coap_server=None):
    super(Actuator,self).__init__(name,coap_server,visible=True,observable=True)
    self.payload="This is an actuator"
    self.resource_type="rt1"
  def render_GET(self,request):
    return self

class CoAPServer(CoAP):
  def __init__(self, host, port, multicast=False):
    CoAP.__init__(self,(host,port),multicast)
    self.add_resource('sens-Me/',Sensor())
    self.add_resource('act-Me/',Actuator())
    print "CoAP server started on {}:{}".format(str(host),str(port))
    print self.root.dump()

def pollUserInput(server):
  while 1:
    user_input = raw_input("Some input please: ")
    print user_input
    server.add_resource('sens-Me2/', Sensor())

def main():
  ip = "0.0.0.0"
  port = 5683
  multicast=False

  server = CoAPServer(ip,port,multicast)
  thread = Thread(target = pollUserInput, args=(server,))
  thread.setDaemon(True)
  thread.start()

  try:
    server.listen(10)
    print "executed after listen"
  except KeyboardInterrupt:
    print server.root.dump()
    server.close()
    sys.exit()

if __name__=="__main__":
  main()