update for new python/tornado versions

camera.py

@@ -31,7 +31,7 @@ def PTZData(d, root="PTZData"):
 def etree_to_list(t):
     d = []
     k = t.tag.split('}')[-1]
-    v = list(map(etree_to_dict, t.getchildren()))
+    v = list(map(etree_to_dict, list(t)))
     if len(v) == 1:
         v = v[0]
     elif v and not isinstance(v[0], dict):
@@ -47,7 +47,7 @@ def etree_to_list(t):
 def etree_to_dict(t):
     d = {}
     k = t.tag.split('}')[-1]
-    v = list(map(etree_to_dict, t.getchildren()))
+    v = list(map(etree_to_dict, list(t)))
     if len(v) == 1:
         v = v[0]
     #elif v and not isinstance(v[0], dict):
@@ -127,20 +127,12 @@ class Camera:
         return {}
 
     def get(self, method):
-        while True:
-            try:
-                return requests.get(self.url(method), auth=self.auth).text
-            except requests.exceptions.ConnectionError:
-                time.sleep(0.1)
+        return requests.get(self.url(method), auth=self.auth).text
 
     def put(self, method, data):
         if isinstance(data, dict):
             data = PTZData(data)
-        while True:
-            try:
-                return requests.put(self.url(method), data=data, auth=self.auth).text
-            except requests.exceptions.ConnectionError:
-                time.sleep(0.1)
+        return requests.put(self.url(method), data=data, auth=self.auth).text
 
     def momentary(self, cmd, duration=None):
         if duration:

server.py

@@ -209,7 +209,9 @@ class RPCHandler(tornado.web.RequestHandler):
             error = {'error': {'code': -32700, 'message': 'Parse error'}}
         if not error:
             try:
-                response = yield tornado.gen.Task(api_task, request)
+                future = tornado.concurrent.Future()
+                api_task(request, callback=future.set_result)
+                response = yield future
             except KeyboardInterrupt:
                 raise
             except: