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-rw-r--r--changelog.d/3562.misc0
-rwxr-xr-xsynapse/app/homeserver.py6
-rwxr-xr-xsynapse/app/synctl.py4
-rw-r--r--synapse/events/snapshot.py4
-rw-r--r--synapse/handlers/federation.py18
-rw-r--r--synapse/state.py6
-rw-r--r--synapse/visibility.py19
-rw-r--r--tests/test_federation.py3
8 files changed, 33 insertions, 27 deletions
diff --git a/changelog.d/3562.misc b/changelog.d/3562.misc
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/changelog.d/3562.misc
diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py
index 14e6dca522..2ad1beb8d8 100755
--- a/synapse/app/homeserver.py
+++ b/synapse/app/homeserver.py
@@ -18,6 +18,8 @@ import logging
 import os
 import sys
 
+from six import iteritems
+
 from twisted.application import service
 from twisted.internet import defer, reactor
 from twisted.web.resource import EncodingResourceWrapper, NoResource
@@ -442,7 +444,7 @@ def run(hs):
         stats["total_nonbridged_users"] = total_nonbridged_users
 
         daily_user_type_results = yield hs.get_datastore().count_daily_user_type()
-        for name, count in daily_user_type_results.iteritems():
+        for name, count in iteritems(daily_user_type_results):
             stats["daily_user_type_" + name] = count
 
         room_count = yield hs.get_datastore().get_room_count()
@@ -453,7 +455,7 @@ def run(hs):
         stats["daily_messages"] = yield hs.get_datastore().count_daily_messages()
 
         r30_results = yield hs.get_datastore().count_r30_users()
-        for name, count in r30_results.iteritems():
+        for name, count in iteritems(r30_results):
             stats["r30_users_" + name] = count
 
         daily_sent_messages = yield hs.get_datastore().count_daily_sent_messages()
diff --git a/synapse/app/synctl.py b/synapse/app/synctl.py
index 68acc15a9a..d658f967ba 100755
--- a/synapse/app/synctl.py
+++ b/synapse/app/synctl.py
@@ -25,6 +25,8 @@ import subprocess
 import sys
 import time
 
+from six import iteritems
+
 import yaml
 
 SYNAPSE = [sys.executable, "-B", "-m", "synapse.app.homeserver"]
@@ -173,7 +175,7 @@ def main():
         os.environ["SYNAPSE_CACHE_FACTOR"] = str(cache_factor)
 
     cache_factors = config.get("synctl_cache_factors", {})
-    for cache_name, factor in cache_factors.iteritems():
+    for cache_name, factor in iteritems(cache_factors):
         os.environ["SYNAPSE_CACHE_FACTOR_" + cache_name.upper()] = str(factor)
 
     worker_configfiles = []
diff --git a/synapse/events/snapshot.py b/synapse/events/snapshot.py
index bcd9bb5946..f83a1581a6 100644
--- a/synapse/events/snapshot.py
+++ b/synapse/events/snapshot.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from six import iteritems
+
 from frozendict import frozendict
 
 from twisted.internet import defer
@@ -159,7 +161,7 @@ def _encode_state_dict(state_dict):
 
     return [
         (etype, state_key, v)
-        for (etype, state_key), v in state_dict.iteritems()
+        for (etype, state_key), v in iteritems(state_dict)
     ]
 
 
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index 65f6041b10..a6d391c4e8 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -21,8 +21,8 @@ import logging
 import sys
 
 import six
-from six import iteritems
-from six.moves import http_client
+from six import iteritems, itervalues
+from six.moves import http_client, zip
 
 from signedjson.key import decode_verify_key_bytes
 from signedjson.sign import verify_signed_json
@@ -731,7 +731,7 @@ class FederationHandler(BaseHandler):
             """
             joined_users = [
                 (state_key, int(event.depth))
-                for (e_type, state_key), event in state.iteritems()
+                for (e_type, state_key), event in iteritems(state)
                 if e_type == EventTypes.Member
                 and event.membership == Membership.JOIN
             ]
@@ -748,7 +748,7 @@ class FederationHandler(BaseHandler):
                 except Exception:
                     pass
 
-            return sorted(joined_domains.iteritems(), key=lambda d: d[1])
+            return sorted(joined_domains.items(), key=lambda d: d[1])
 
         curr_domains = get_domains_from_state(curr_state)
 
@@ -811,7 +811,7 @@ class FederationHandler(BaseHandler):
         tried_domains = set(likely_domains)
         tried_domains.add(self.server_name)
 
-        event_ids = list(extremities.iterkeys())
+        event_ids = list(extremities.keys())
 
         logger.debug("calling resolve_state_groups in _maybe_backfill")
         resolve = logcontext.preserve_fn(
@@ -827,15 +827,15 @@ class FederationHandler(BaseHandler):
         states = dict(zip(event_ids, [s.state for s in states]))
 
         state_map = yield self.store.get_events(
-            [e_id for ids in states.itervalues() for e_id in ids.itervalues()],
+            [e_id for ids in itervalues(states) for e_id in itervalues(ids)],
             get_prev_content=False
         )
         states = {
             key: {
                 k: state_map[e_id]
-                for k, e_id in state_dict.iteritems()
+                for k, e_id in iteritems(state_dict)
                 if e_id in state_map
-            } for key, state_dict in states.iteritems()
+            } for key, state_dict in iteritems(states)
         }
 
         for e_id, _ in sorted_extremeties_tuple:
@@ -1515,7 +1515,7 @@ class FederationHandler(BaseHandler):
         yield self.store.persist_events(
             [
                 (ev_info["event"], context)
-                for ev_info, context in itertools.izip(event_infos, contexts)
+                for ev_info, context in zip(event_infos, contexts)
             ],
             backfilled=backfilled,
         )
diff --git a/synapse/state.py b/synapse/state.py
index 15a593d41c..504caae2f7 100644
--- a/synapse/state.py
+++ b/synapse/state.py
@@ -18,7 +18,7 @@ import hashlib
 import logging
 from collections import namedtuple
 
-from six import iteritems, itervalues
+from six import iteritems, iterkeys, itervalues
 
 from frozendict import frozendict
 
@@ -647,7 +647,7 @@ def resolve_events_with_factory(state_sets, event_map, state_map_factory):
         for event_id in event_ids
     )
     if event_map is not None:
-        needed_events -= set(event_map.iterkeys())
+        needed_events -= set(iterkeys(event_map))
 
     logger.info("Asking for %d conflicted events", len(needed_events))
 
@@ -668,7 +668,7 @@ def resolve_events_with_factory(state_sets, event_map, state_map_factory):
     new_needed_events = set(itervalues(auth_events))
     new_needed_events -= needed_events
     if event_map is not None:
-        new_needed_events -= set(event_map.iterkeys())
+        new_needed_events -= set(iterkeys(event_map))
 
     logger.info("Asking for %d auth events", len(new_needed_events))
 
diff --git a/synapse/visibility.py b/synapse/visibility.py
index 9b97ea2b83..ba0499a022 100644
--- a/synapse/visibility.py
+++ b/synapse/visibility.py
@@ -12,11 +12,12 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-import itertools
+
 import logging
 import operator
 
-import six
+from six import iteritems, itervalues
+from six.moves import map
 
 from twisted.internet import defer
 
@@ -221,7 +222,7 @@ def filter_events_for_client(store, user_id, events, is_peeking=False,
         return event
 
     # check each event: gives an iterable[None|EventBase]
-    filtered_events = itertools.imap(allowed, events)
+    filtered_events = map(allowed, events)
 
     # remove the None entries
     filtered_events = filter(operator.truth, filtered_events)
@@ -261,7 +262,7 @@ def filter_events_for_server(store, server_name, events):
                 # membership states for the requesting server to determine
                 # if the server is either in the room or has been invited
                 # into the room.
-                for ev in state.itervalues():
+                for ev in itervalues(state):
                     if ev.type != EventTypes.Member:
                         continue
                     try:
@@ -295,7 +296,7 @@ def filter_events_for_server(store, server_name, events):
     )
 
     visibility_ids = set()
-    for sids in event_to_state_ids.itervalues():
+    for sids in itervalues(event_to_state_ids):
         hist = sids.get((EventTypes.RoomHistoryVisibility, ""))
         if hist:
             visibility_ids.add(hist)
@@ -308,7 +309,7 @@ def filter_events_for_server(store, server_name, events):
         event_map = yield store.get_events(visibility_ids)
         all_open = all(
             e.content.get("history_visibility") in (None, "shared", "world_readable")
-            for e in event_map.itervalues()
+            for e in itervalues(event_map)
         )
 
     if all_open:
@@ -346,7 +347,7 @@ def filter_events_for_server(store, server_name, events):
     #
     state_key_to_event_id_set = {
         e
-        for key_to_eid in six.itervalues(event_to_state_ids)
+        for key_to_eid in itervalues(event_to_state_ids)
         for e in key_to_eid.items()
     }
 
@@ -369,10 +370,10 @@ def filter_events_for_server(store, server_name, events):
     event_to_state = {
         e_id: {
             key: event_map[inner_e_id]
-            for key, inner_e_id in key_to_eid.iteritems()
+            for key, inner_e_id in iteritems(key_to_eid)
             if inner_e_id in event_map
         }
-        for e_id, key_to_eid in event_to_state_ids.iteritems()
+        for e_id, key_to_eid in iteritems(event_to_state_ids)
     }
 
     defer.returnValue([
diff --git a/tests/test_federation.py b/tests/test_federation.py
index 159a136971..f40ff29b52 100644
--- a/tests/test_federation.py
+++ b/tests/test_federation.py
@@ -137,7 +137,6 @@ class MessageAcceptTests(unittest.TestCase):
         )
         self.assertEqual(self.successResultOf(extrem)[0], "$join:test.serv")
 
-    @unittest.DEBUG
     def test_cant_hide_past_history(self):
         """
         If you send a message, you must be able to provide the direct
@@ -178,7 +177,7 @@ class MessageAcceptTests(unittest.TestCase):
                             for x, y in d.items()
                             if x == ("m.room.member", "@us:test")
                         ],
-                        "auth_chain_ids": d.values(),
+                        "auth_chain_ids": list(d.values()),
                     }
                 )