Replace iteritems/itervalues/iterkeys with native versions. (#7692)

1 files changed, 6 insertions, 7 deletions

diff --git a/synapse/storage/database.py b/synapse/storage/database.py

index b112ff3df2..645a70934c 100644
--- a/synapse/storage/database.py
+++ b/synapse/storage/database.py
@@ -29,7 +29,6 @@ from typing import (
     TypeVar,
 )
 
-from six import iteritems, iterkeys, itervalues
 from six.moves import intern, range
 
 from prometheus_client import Histogram
@@ -259,7 +258,7 @@ class PerformanceCounters(object):
 
     def interval(self, interval_duration_secs, limit=3):
         counters = []
-        for name, (count, cum_time) in iteritems(self.current_counters):
+        for name, (count, cum_time) in self.current_counters.items():
             prev_count, prev_time = self.previous_counters.get(name, (0, 0))
             counters.append(
                 (
@@ -1053,7 +1052,7 @@ class Database(object):
         sql = ("SELECT %(retcol)s FROM %(table)s") % {"retcol": retcol, "table": table}
 
         if keyvalues:
-            sql += " WHERE %s" % " AND ".join("%s = ?" % k for k in iterkeys(keyvalues))
+            sql += " WHERE %s" % " AND ".join("%s = ?" % k for k in keyvalues.keys())
             txn.execute(sql, list(keyvalues.values()))
         else:
             txn.execute(sql)
@@ -1191,7 +1190,7 @@ class Database(object):
         clause, values = make_in_list_sql_clause(txn.database_engine, column, iterable)
         clauses = [clause]
 
-        for key, value in iteritems(keyvalues):
+        for key, value in keyvalues.items():
             clauses.append("%s = ?" % (key,))
             values.append(value)
 
@@ -1212,7 +1211,7 @@ class Database(object):
     @staticmethod
     def simple_update_txn(txn, table, keyvalues, updatevalues):
         if keyvalues:
-            where = "WHERE %s" % " AND ".join("%s = ?" % k for k in iterkeys(keyvalues))
+            where = "WHERE %s" % " AND ".join("%s = ?" % k for k in keyvalues.keys())
         else:
             where = ""
 
@@ -1351,7 +1350,7 @@ class Database(object):
         clause, values = make_in_list_sql_clause(txn.database_engine, column, iterable)
         clauses = [clause]
 
-        for key, value in iteritems(keyvalues):
+        for key, value in keyvalues.items():
             clauses.append("%s = ?" % (key,))
             values.append(value)
 
@@ -1388,7 +1387,7 @@ class Database(object):
         txn.close()
 
         if cache:
-            min_val = min(itervalues(cache))
+            min_val = min(cache.values())
         else:
             min_val = max_value