add argparse magic

ksp_client.py

 import krpc
 import zmq
+import argparse
 
 
 class ModelRocket:
@@ -12,18 +13,21 @@ class ModelRocket:
  def send(self,stage):
  self.socket.send("%d %d" % (self.topic, self.stage_map[stage]))
 
- def __init__(self,port=5556):
+ def __init__(self,addr="localhos:5556"):
  context = zmq.Context()
  self.socket = context.socket(zmq.PUB)
- self.socket.bind("tcp://*:%s" % port)
+ self.socket.bind("tcp://%s" % addr)
 
 
 if __name__ == "__main__":
+ parser = argparse.ArgumentParser(description='')
+ parser.add_argument('addr', type=str, default="localhos:5556", nargs="?")
+ args = parser.parse_args()
 
  conn = krpc.connect()
  vessel = conn.space_center.active_vessel
  control = vessel.control
- rocket = ModelRocket()
+ rocket = ModelRocket(args.addr)
 
  stage = conn.add_stream(getattr, control.current_stage, 'stage')
  stage.add_callback(rocket.send)