3 files changed, 15 insertions, 9 deletions
diff --git a/synapse/handlers/appservice.py b/synapse/handlers/appservice.py
index f6c7b89270..b596f098fd 100644
--- a/synapse/handlers/appservice.py
+++ b/synapse/handlers/appservice.py
@@ -260,11 +260,15 @@ class ApplicationServicesHandler(object):
             event based on the service regex.
         """
         services = self.store.get_app_services()
-        interested_list = [
-            s for s in services if (
-                yield s.is_interested(event, self.store)
-            )
-        ]
+
+        # we can't use a list comprehension here. Since python 3, list
+        # comprehensions use a generator internally. This means you can't yield
+        # inside of a list comprehension anymore.
+        interested_list = []
+        for s in services:
+            if (yield s.is_interested(event, self.store)):
+                interested_list.append(s)
+
         defer.returnValue(interested_list)
 
     def _get_services_for_user(self, user_id):
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index bab0db2904..f39233d846 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -16,7 +16,6 @@
 
 """Contains handlers for federation events."""
 
-import httplib
 import itertools
 import logging
 import sys
@@ -24,6 +23,7 @@ import sys
 from signedjson.key import decode_verify_key_bytes
 from signedjson.sign import verify_signed_json
 import six
+from six.moves import http_client
 from twisted.internet import defer
 from unpaddedbase64 import decode_base64
 
@@ -890,7 +890,7 @@ class FederationHandler(BaseHandler):
             logger.warn("Rejecting event %s which has %i prev_events",
                         ev.event_id, len(ev.prev_events))
             raise SynapseError(
-                httplib.BAD_REQUEST,
+                http_client.BAD_REQUEST,
                 "Too many prev_events",
             )
 
@@ -898,7 +898,7 @@ class FederationHandler(BaseHandler):
             logger.warn("Rejecting event %s which has %i auth_events",
                         ev.event_id, len(ev.auth_events))
             raise SynapseError(
-                httplib.BAD_REQUEST,
+                http_client.BAD_REQUEST,
                 "Too many auth_events",
             )
 
diff --git a/synapse/handlers/room_list.py b/synapse/handlers/room_list.py
index add3f9b009..5757bb7f8a 100644
--- a/synapse/handlers/room_list.py
+++ b/synapse/handlers/room_list.py
@@ -15,6 +15,8 @@
 
 from twisted.internet import defer
 
+from six.moves import range
+
 from ._base import BaseHandler
 
 from synapse.api.constants import (
@@ -200,7 +202,7 @@ class RoomListHandler(BaseHandler):
             step = len(rooms_to_scan) if len(rooms_to_scan) != 0 else 1
 
         chunk = []
-        for i in xrange(0, len(rooms_to_scan), step):
+        for i in range(0, len(rooms_to_scan), step):
             batch = rooms_to_scan[i:i + step]
             logger.info("Processing %i rooms for result", len(batch))
             yield concurrently_execute(