Replace all remaining six usage with native Python 3 equivalents (#7704)

synapse/storage/data_stores/main/event_federation.py

@@ -14,10 +14,9 @@
 # limitations under the License.
 import itertools
 import logging
+from queue import Empty, PriorityQueue
 from typing import Dict, List, Optional, Set, Tuple
 
-from six.moves.queue import Empty, PriorityQueue
-
 from twisted.internet import defer
 
 from synapse.api.errors import StoreError

synapse/storage/data_stores/main/events.py

@@ -21,9 +21,6 @@ from collections import OrderedDict, namedtuple
 from functools import wraps
 from typing import TYPE_CHECKING, Dict, Iterable, List, Tuple
 
-from six import integer_types, text_type
-from six.moves import range
-
 import attr
 from canonicaljson import json
 from prometheus_client import Counter
@@ -893,8 +890,7 @@ class PersistEventsStore:
                     "received_ts": self._clock.time_msec(),
                     "sender": event.sender,
                     "contains_url": (
-                        "url" in event.content
-                        and isinstance(event.content["url"], text_type)
+                        "url" in event.content and isinstance(event.content["url"], str)
                     ),
                 }
                 for event, _ in events_and_contexts
@@ -1345,10 +1341,10 @@ class PersistEventsStore:
         ):
             if (
                 "min_lifetime" in event.content
-                and not isinstance(event.content.get("min_lifetime"), integer_types)
+                and not isinstance(event.content.get("min_lifetime"), int)
             ) or (
                 "max_lifetime" in event.content
-                and not isinstance(event.content.get("max_lifetime"), integer_types)
+                and not isinstance(event.content.get("max_lifetime"), int)
             ):
                 # Ignore the event if one of the value isn't an integer.
                 return

synapse/storage/data_stores/main/events_bg_updates.py

@@ -15,8 +15,6 @@
 
 import logging
 
-from six import text_type
-
 from canonicaljson import json
 
 from twisted.internet import defer
@@ -133,7 +131,7 @@ class EventsBackgroundUpdatesStore(SQLBaseStore):
 
                     contains_url = "url" in content
                     if contains_url:
-                        contains_url &= isinstance(content["url"], text_type)
+                        contains_url &= isinstance(content["url"], str)
                 except (KeyError, AttributeError):
                     # If the event is missing a necessary field then
                     # skip over it.

synapse/storage/data_stores/main/schema/delta/30/as_users.py

@@ -13,8 +13,6 @@
 # limitations under the License.
 import logging
 
-from six.moves import range
-
 from synapse.config.appservice import load_appservices
 
 logger = logging.getLogger(__name__)

synapse/storage/data_stores/main/search.py

@@ -17,8 +17,6 @@ import logging
 import re
 from collections import namedtuple
 
-from six import string_types
-
 from canonicaljson import json
 
 from twisted.internet import defer
@@ -180,7 +178,7 @@ class SearchBackgroundUpdateStore(SearchWorkerStore):
                     # skip over it.
                     continue
 
-                if not isinstance(value, string_types):
+                if not isinstance(value, str):
                     # If the event body, name or topic isn't a string
                     # then skip over it
                     continue

synapse/storage/data_stores/main/stream.py

@@ -40,8 +40,6 @@ import abc
 import logging
 from collections import namedtuple
 
-from six.moves import range
-
 from twisted.internet import defer
 
 from synapse.logging.context import make_deferred_yieldable, run_in_background

synapse/storage/data_stores/main/tags.py

@@ -16,8 +16,6 @@
 
 import logging
 
-from six.moves import range
-
 from canonicaljson import json
 
 from twisted.internet import defer

synapse/storage/data_stores/state/store.py

@@ -17,8 +17,6 @@ import logging
 from collections import namedtuple
 from typing import Dict, Iterable, List, Set, Tuple
 
-from six.moves import range
-
 from twisted.internet import defer
 
 from synapse.api.constants import EventTypes

synapse/storage/database.py

@@ -16,6 +16,7 @@
 # limitations under the License.
 import logging
 import time
+from sys import intern
 from time import monotonic as monotonic_time
 from typing import (
     Any,
@@ -29,8 +30,6 @@ from typing import (
     TypeVar,
 )
 
-from six.moves import intern, range
-
 from prometheus_client import Histogram
 
 from twisted.enterprise import adbapi

synapse/storage/persist_events.py

@@ -20,8 +20,6 @@ import logging
 from collections import deque, namedtuple
 from typing import Iterable, List, Optional, Set, Tuple
 
-from six.moves import range
-
 from prometheus_client import Counter, Histogram
 
 from twisted.internet import defer