Format files with Ruff (#17643)

I thought ruff check would also format, but it doesn't.

This runs ruff format in CI and dev scripts. The first commit is just a
run of `ruff format .` in the root directory.

.github/workflows/fix_lint.yaml

@@ -29,10 +29,14 @@ jobs:
         with:
           install-project: "false"
 
-      - name: Run ruff
+      - name: Run ruff check
         continue-on-error: true
         run: poetry run ruff check --fix .
 
+      - name: Run ruff format
+        continue-on-error: true
+        run: poetry run ruff format --quiet .
+
       - run: cargo clippy --all-features --fix -- -D warnings
         continue-on-error: true
 

.github/workflows/tests.yml

@@ -131,9 +131,12 @@ jobs:
         with:
           install-project: "false"
 
-      - name: Check style
+      - name: Run ruff check
         run: poetry run ruff check --output-format=github .
 
+      - name: Run ruff format
+        run: poetry run ruff format --check .
+
   lint-mypy:
     runs-on: ubuntu-latest
     name: Typechecking

changelog.d/17643.misc

@@ -0,0 +1 @@
+Replace `isort` and `black with `ruff`.

contrib/cmdclient/console.py

@@ -21,7 +21,8 @@
 #
 #
 
-""" Starts a synapse client console. """
+"""Starts a synapse client console."""
+
 import argparse
 import binascii
 import cmd

scripts-dev/check_pydantic_models.py

@@ -31,6 +31,7 @@ Pydantic does not yet offer a strict mode, but it is planned for pydantic v2. Se
 until then, this script is a best effort to stop us from introducing type coersion bugs
 (like the infamous stringy power levels fixed in room version 10).
 """
+
 import argparse
 import contextlib
 import functools

scripts-dev/lint.sh

@@ -109,6 +109,9 @@ set -x
 # --quiet suppresses the update check.
 ruff check --quiet --fix "${files[@]}"
 
+# Reformat Python code.
+ruff format --quiet "${files[@]}"
+
 # Catch any common programming mistakes in Rust code.
 #
 # --bins, --examples, --lib, --tests combined explicitly disable checking

scripts-dev/release.py

@@ -20,8 +20,7 @@
 #
 #
 
-"""An interactive script for doing a release. See `cli()` below.
+"""An interactive script for doing a release. See `cli()` below."""
-"""
 
 import glob
 import json

stubs/txredisapi.pyi

@@ -13,8 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-"""Contains *incomplete* type hints for txredisapi.
+"""Contains *incomplete* type hints for txredisapi."""
-"""
+
 from typing import Any, List, Optional, Type, Union
 
 from twisted.internet import protocol

synapse/__init__.py

@@ -20,8 +20,7 @@
 #
 #
 
-""" This is an implementation of a Matrix homeserver.
+"""This is an implementation of a Matrix homeserver."""
-"""
 
 import os
 import sys

synapse/_scripts/generate_workers_map.py

@@ -171,7 +171,7 @@ def elide_http_methods_if_unconflicting(
     """
 
     def paths_to_methods_dict(
-        methods_and_paths: Iterable[Tuple[str, str]]
+        methods_and_paths: Iterable[Tuple[str, str]],
     ) -> Dict[str, Set[str]]:
         """
         Given (method, path) pairs, produces a dict from path to set of methods
@@ -201,7 +201,7 @@ def elide_http_methods_if_unconflicting(
 
 
 def simplify_path_regexes(
-    registrations: Dict[Tuple[str, str], EndpointDescription]
+    registrations: Dict[Tuple[str, str], EndpointDescription],
 ) -> Dict[Tuple[str, str], EndpointDescription]:
     """
     Simplify all the path regexes for the dict of endpoint descriptions,

synapse/_scripts/review_recent_signups.py

@@ -40,6 +40,7 @@ from synapse.storage.engines import create_engine
 
 class ReviewConfig(RootConfig):
     "A config class that just pulls out the database config"
+
     config_classes = [DatabaseConfig]
 
 
@@ -160,7 +161,11 @@ def main() -> None:
 
     with make_conn(database_config, engine, "review_recent_signups") as db_conn:
         # This generates a type of Cursor, not LoggingTransaction.
-        user_infos = get_recent_users(db_conn.cursor(), since_ms, exclude_users_with_appservice)  # type: ignore[arg-type]
+        user_infos = get_recent_users(
+            db_conn.cursor(),
+            since_ms,  # type: ignore[arg-type]
+            exclude_users_with_appservice,
+        )
 
     for user_info in user_infos:
         if exclude_users_with_email and user_info.emails:

synapse/_scripts/synapse_port_db.py

@@ -717,9 +717,7 @@ class Porter:
                 return
 
             # Check if all background updates are done, abort if not.
-            updates_complete = (
+            updates_complete = await self.sqlite_store.db_pool.updates.has_completed_background_updates()
-                await self.sqlite_store.db_pool.updates.has_completed_background_updates()
-            )
             if not updates_complete:
                 end_error = (
                     "Pending background updates exist in the SQLite3 database."
@@ -1095,10 +1093,10 @@ class Porter:
         return done, remaining + done
 
     async def _setup_state_group_id_seq(self) -> None:
-        curr_id: Optional[int] = (
+        curr_id: Optional[
-            await self.sqlite_store.db_pool.simple_select_one_onecol(
+            int
-                table="state_groups", keyvalues={}, retcol="MAX(id)", allow_none=True
+        ] = await self.sqlite_store.db_pool.simple_select_one_onecol(
-            )
+            table="state_groups", keyvalues={}, retcol="MAX(id)", allow_none=True
         )
 
         if not curr_id:
@@ -1186,13 +1184,13 @@ class Porter:
         )
 
     async def _setup_auth_chain_sequence(self) -> None:
-        curr_chain_id: Optional[int] = (
+        curr_chain_id: Optional[
-            await self.sqlite_store.db_pool.simple_select_one_onecol(
+            int
-                table="event_auth_chains",
+        ] = await self.sqlite_store.db_pool.simple_select_one_onecol(
-                keyvalues={},
+            table="event_auth_chains",
-                retcol="MAX(chain_id)",
+            keyvalues={},
-                allow_none=True,
+            retcol="MAX(chain_id)",
-            )
+            allow_none=True,
         )
 
         def r(txn: LoggingTransaction) -> None:

synapse/api/urls.py

@@ -19,7 +19,8 @@
 #
 #
 
-"""Contains the URL paths to prefix various aspects of the server with. """
+"""Contains the URL paths to prefix various aspects of the server with."""
+
 import hmac
 from hashlib import sha256
 from urllib.parse import urlencode

synapse/appservice/scheduler.py

@@ -54,6 +54,7 @@ UP & quit           +---------- YES                       SUCCESS
 This is all tied together by the AppServiceScheduler which DIs the required
 components.
 """
+
 import logging
 from typing import (
     TYPE_CHECKING,

synapse/config/key.py

@@ -200,16 +200,13 @@ class KeyConfig(Config):
             )
             form_secret = 'form_secret: "%s"' % random_string_with_symbols(50)
 
-        return (
+        return """\
-            """\
         %(macaroon_secret_key)s
         %(form_secret)s
         signing_key_path: "%(base_key_name)s.signing.key"
         trusted_key_servers:
           - server_name: "matrix.org"
-        """
+        """ % locals()
-            % locals()
-        )
 
     def read_signing_keys(self, signing_key_path: str, name: str) -> List[SigningKey]:
         """Read the signing keys in the given path.
@@ -249,7 +246,9 @@ class KeyConfig(Config):
             if is_signing_algorithm_supported(key_id):
                 key_base64 = key_data["key"]
                 key_bytes = decode_base64(key_base64)
-                verify_key: "VerifyKeyWithExpiry" = decode_verify_key_bytes(key_id, key_bytes)  # type: ignore[assignment]
+                verify_key: "VerifyKeyWithExpiry" = decode_verify_key_bytes(
+                    key_id, key_bytes
+                )  # type: ignore[assignment]
                 verify_key.expired = key_data["expired_ts"]
                 keys[key_id] = verify_key
             else:

synapse/config/logger.py

@@ -157,12 +157,9 @@ class LoggingConfig(Config):
         self, config_dir_path: str, server_name: str, **kwargs: Any
     ) -> str:
         log_config = os.path.join(config_dir_path, server_name + ".log.config")
-        return (
+        return """\
-            """\
         log_config: "%(log_config)s"
-        """
+        """ % locals()
-            % locals()
-        )
 
     def read_arguments(self, args: argparse.Namespace) -> None:
         if args.no_redirect_stdio is not None:

synapse/config/server.py

@@ -828,13 +828,10 @@ class ServerConfig(Config):
             ).lstrip()
 
         if not unsecure_listeners:
-            unsecure_http_bindings = (
+            unsecure_http_bindings = """- port: %(unsecure_port)s
-                """- port: %(unsecure_port)s
             tls: false
             type: http
-            x_forwarded: true"""
+            x_forwarded: true""" % locals()
-                % locals()
-            )
 
             if not open_private_ports:
                 unsecure_http_bindings += (
@@ -853,16 +850,13 @@ class ServerConfig(Config):
         if not secure_listeners:
             secure_http_bindings = ""
 
-        return (
+        return """\
-            """\
         server_name: "%(server_name)s"
         pid_file: %(pid_file)s
         listeners:
           %(secure_http_bindings)s
           %(unsecure_http_bindings)s
-        """
+        """ % locals()
-            % locals()
-        )
 
     def read_arguments(self, args: argparse.Namespace) -> None:
         if args.manhole is not None:

synapse/config/workers.py

@@ -328,10 +328,11 @@ class WorkerConfig(Config):
                 )
 
         # type-ignore: the expression `Union[A, B]` is not a Type[Union[A, B]] currently
-        self.instance_map: Dict[
+        self.instance_map: Dict[str, InstanceLocationConfig] = (
-            str, InstanceLocationConfig
+            parse_and_validate_mapping(
-        ] = parse_and_validate_mapping(
+                instance_map,
-            instance_map, InstanceLocationConfig  # type: ignore[arg-type]
+                InstanceLocationConfig,  # type: ignore[arg-type]
+            )
         )
 
         # Map from type of streams to source, c.f. WriterLocations.

synapse/event_auth.py

@@ -887,7 +887,8 @@ def _check_power_levels(
                     raise SynapseError(400, f"{v!r} must be an integer.")
             if k in {"events", "notifications", "users"}:
                 if not isinstance(v, collections.abc.Mapping) or not all(
-                    type(v) is int for v in v.values()  # noqa: E721
+                    type(v) is int
+                    for v in v.values()  # noqa: E721
                 ):
                     raise SynapseError(
                         400,

synapse/events/presence_router.py

@@ -80,7 +80,7 @@ def load_legacy_presence_router(hs: "HomeServer") -> None:
     # All methods that the module provides should be async, but this wasn't enforced
     # in the old module system, so we wrap them if needed
     def async_wrapper(
-        f: Optional[Callable[P, R]]
+        f: Optional[Callable[P, R]],
     ) -> Optional[Callable[P, Awaitable[R]]]:
         # f might be None if the callback isn't implemented by the module. In this
         # case we don't want to register a callback at all so we return None.

synapse/events/snapshot.py

@@ -504,7 +504,7 @@ class UnpersistedEventContext(UnpersistedEventContextBase):
 
 
 def _encode_state_group_delta(
-    state_group_delta: Dict[Tuple[int, int], StateMap[str]]
+    state_group_delta: Dict[Tuple[int, int], StateMap[str]],
 ) -> List[Tuple[int, int, Optional[List[Tuple[str, str, str]]]]]:
     if not state_group_delta:
         return []
@@ -517,7 +517,7 @@ def _encode_state_group_delta(
 
 
 def _decode_state_group_delta(
-    input: List[Tuple[int, int, List[Tuple[str, str, str]]]]
+    input: List[Tuple[int, int, List[Tuple[str, str, str]]]],
 ) -> Dict[Tuple[int, int], StateMap[str]]:
     if not input:
         return {}
@@ -544,7 +544,7 @@ def _encode_state_dict(
 
 
 def _decode_state_dict(
-    input: Optional[List[Tuple[str, str, str]]]
+    input: Optional[List[Tuple[str, str, str]]],
 ) -> Optional[StateMap[str]]:
     """Decodes a state dict encoded using `_encode_state_dict` above"""
     if input is None:

synapse/federation/__init__.py

@@ -19,5 +19,4 @@
 #
 #
 
-""" This package includes all the federation specific logic.
+"""This package includes all the federation specific logic."""
-"""

synapse/federation/persistence.py

@@ -20,7 +20,7 @@
 #
 #
 
-""" This module contains all the persistence actions done by the federation
+"""This module contains all the persistence actions done by the federation
 package.
 
 These actions are mostly only used by the :py:mod:`.replication` module.

synapse/federation/transport/server/federation.py

@@ -859,7 +859,6 @@ class FederationMediaThumbnailServlet(BaseFederationServerServlet):
         request: SynapseRequest,
         media_id: str,
     ) -> None:
-
         width = parse_integer(request, "width", required=True)
         height = parse_integer(request, "height", required=True)
         method = parse_string(request, "method", "scale")

synapse/federation/units.py

@@ -19,7 +19,7 @@
 #
 #
 
-""" Defines the JSON structure of the protocol units used by the server to
+"""Defines the JSON structure of the protocol units used by the server to
 server protocol.
 """
 

synapse/handlers/account.py

@@ -118,10 +118,10 @@ class AccountHandler:
             }
 
             if self._use_account_validity_in_account_status:
-                status["org.matrix.expired"] = (
+                status[
-                    await self._account_validity_handler.is_user_expired(
+                    "org.matrix.expired"
-                        user_id.to_string()
+                ] = await self._account_validity_handler.is_user_expired(
-                    )
+                    user_id.to_string()
                 )
 
         return status

synapse/handlers/admin.py

@@ -197,14 +197,15 @@ class AdminHandler:
             # events that we have and then filtering, this isn't the most
             # efficient method perhaps but it does guarantee we get everything.
             while True:
-                events, _ = (
+                (
-                    await self._store.paginate_room_events_by_topological_ordering(
+                    events,
-                        room_id=room_id,
+                    _,
-                        from_key=from_key,
+                ) = await self._store.paginate_room_events_by_topological_ordering(
-                        to_key=to_key,
+                    room_id=room_id,
-                        limit=100,
+                    from_key=from_key,
-                        direction=Direction.FORWARDS,
+                    to_key=to_key,
-                    )
+                    limit=100,
+                    direction=Direction.FORWARDS,
                 )
                 if not events:
                     break

synapse/handlers/auth.py

@@ -166,8 +166,7 @@ def login_id_phone_to_thirdparty(identifier: JsonDict) -> Dict[str, str]:
     if "country" not in identifier or (
         # The specification requires a "phone" field, while Synapse used to require a "number"
         # field. Accept both for backwards compatibility.
-        "phone" not in identifier
+        "phone" not in identifier and "number" not in identifier
-        and "number" not in identifier
     ):
         raise SynapseError(
             400, "Invalid phone-type identifier", errcode=Codes.INVALID_PARAM

synapse/handlers/directory.py

@@ -265,9 +265,9 @@ class DirectoryHandler:
     async def get_association(self, room_alias: RoomAlias) -> JsonDict:
         room_id = None
         if self.hs.is_mine(room_alias):
-            result: Optional[RoomAliasMapping] = (
+            result: Optional[
-                await self.get_association_from_room_alias(room_alias)
+                RoomAliasMapping
-            )
+            ] = await self.get_association_from_room_alias(room_alias)
 
             if result:
                 room_id = result.room_id
@@ -512,11 +512,9 @@ class DirectoryHandler:
                 raise SynapseError(403, "Not allowed to publish room")
 
             # Check if publishing is blocked by a third party module
-            allowed_by_third_party_rules = (
+            allowed_by_third_party_rules = await (
-                await (
+                self._third_party_event_rules.check_visibility_can_be_modified(
-                    self._third_party_event_rules.check_visibility_can_be_modified(
+                    room_id, visibility
-                        room_id, visibility
-                    )
                 )
             )
             if not allowed_by_third_party_rules:

synapse/handlers/federation.py

@@ -1001,11 +1001,11 @@ class FederationHandler:
                     )
 
                 if include_auth_user_id:
-                    event_content[EventContentFields.AUTHORISING_USER] = (
+                    event_content[
-                        await self._event_auth_handler.get_user_which_could_invite(
+                        EventContentFields.AUTHORISING_USER
-                            room_id,
+                    ] = await self._event_auth_handler.get_user_which_could_invite(
-                            state_ids,
+                        room_id,
-                        )
+                        state_ids,
                     )
 
         builder = self.event_builder_factory.for_room_version(

synapse/handlers/identity.py

@@ -21,6 +21,7 @@
 #
 
 """Utilities for interacting with Identity Servers"""
+
 import logging
 import urllib.parse
 from typing import TYPE_CHECKING, Awaitable, Callable, Dict, List, Optional, Tuple

synapse/handlers/message.py

@@ -1225,10 +1225,9 @@ class EventCreationHandler:
             )
 
         if prev_event_ids is not None:
-            assert (
+            assert len(prev_event_ids) <= 10, (
-                len(prev_event_ids) <= 10
+                "Attempting to create an event with %i prev_events"
-            ), "Attempting to create an event with %i prev_events" % (
+                % (len(prev_event_ids),)
-                len(prev_event_ids),
             )
         else:
             prev_event_ids = await self.store.get_prev_events_for_room(builder.room_id)

synapse/handlers/pagination.py

@@ -507,15 +507,16 @@ class PaginationHandler:
 
         # Initially fetch the events from the database. With any luck, we can return
         # these without blocking on backfill (handled below).
-        events, next_key = (
+        (
-            await self.store.paginate_room_events_by_topological_ordering(
+            events,
-                room_id=room_id,
+            next_key,
-                from_key=from_token.room_key,
+        ) = await self.store.paginate_room_events_by_topological_ordering(
-                to_key=to_room_key,
+            room_id=room_id,
-                direction=pagin_config.direction,
+            from_key=from_token.room_key,
-                limit=pagin_config.limit,
+            to_key=to_room_key,
-                event_filter=event_filter,
+            direction=pagin_config.direction,
-            )
+            limit=pagin_config.limit,
+            event_filter=event_filter,
         )
 
         if pagin_config.direction == Direction.BACKWARDS:
@@ -584,15 +585,16 @@ class PaginationHandler:
                 # If we did backfill something, refetch the events from the database to
                 # catch anything new that might have been added since we last fetched.
                 if did_backfill:
-                    events, next_key = (
+                    (
-                        await self.store.paginate_room_events_by_topological_ordering(
+                        events,
-                            room_id=room_id,
+                        next_key,
-                            from_key=from_token.room_key,
+                    ) = await self.store.paginate_room_events_by_topological_ordering(
-                            to_key=to_room_key,
+                        room_id=room_id,
-                            direction=pagin_config.direction,
+                        from_key=from_token.room_key,
-                            limit=pagin_config.limit,
+                        to_key=to_room_key,
-                            event_filter=event_filter,
+                        direction=pagin_config.direction,
-                        )
+                        limit=pagin_config.limit,
+                        event_filter=event_filter,
                     )
             else:
                 # Otherwise, we can backfill in the background for eventual

synapse/handlers/presence.py

@@ -71,6 +71,7 @@ user state; this device follows the normal timeout logic (see above) and will
 automatically be replaced with any information from currently available devices.
 
 """
+
 import abc
 import contextlib
 import itertools
@@ -493,9 +494,9 @@ class WorkerPresenceHandler(BasePresenceHandler):
 
         # The number of ongoing syncs on this process, by (user ID, device ID).
         # Empty if _presence_enabled is false.
-        self._user_device_to_num_current_syncs: Dict[Tuple[str, Optional[str]], int] = (
+        self._user_device_to_num_current_syncs: Dict[
-            {}
+            Tuple[str, Optional[str]], int
-        )
+        ] = {}
 
         self.notifier = hs.get_notifier()
         self.instance_id = hs.get_instance_id()
@@ -818,9 +819,9 @@ class PresenceHandler(BasePresenceHandler):
 
         # Keeps track of the number of *ongoing* syncs on this process. While
         # this is non zero a user will never go offline.
-        self._user_device_to_num_current_syncs: Dict[Tuple[str, Optional[str]], int] = (
+        self._user_device_to_num_current_syncs: Dict[
-            {}
+            Tuple[str, Optional[str]], int
-        )
+        ] = {}
 
         # Keeps track of the number of *ongoing* syncs on other processes.
         #

synapse/handlers/profile.py

@@ -351,9 +351,9 @@ class ProfileHandler:
             server_name = host
 
         if self._is_mine_server_name(server_name):
-            media_info: Optional[Union[LocalMedia, RemoteMedia]] = (
+            media_info: Optional[
-                await self.store.get_local_media(media_id)
+                Union[LocalMedia, RemoteMedia]
-            )
+            ] = await self.store.get_local_media(media_id)
         else:
             media_info = await self.store.get_cached_remote_media(server_name, media_id)
 

synapse/handlers/relations.py

@@ -188,13 +188,13 @@ class RelationsHandler:
         if include_original_event:
             # Do not bundle aggregations when retrieving the original event because
             # we want the content before relations are applied to it.
-            return_value["original_event"] = (
+            return_value[
-                await self._event_serializer.serialize_event(
+                "original_event"
-                    event,
+            ] = await self._event_serializer.serialize_event(
-                    now,
+                event,
-                    bundle_aggregations=None,
+                now,
-                    config=serialize_options,
+                bundle_aggregations=None,
-                )
+                config=serialize_options,
             )
 
         if next_token:

synapse/handlers/room.py

@@ -20,6 +20,7 @@
 #
 
 """Contains functions for performing actions on rooms."""
+
 import itertools
 import logging
 import math
@@ -900,11 +901,9 @@ class RoomCreationHandler:
         )
 
         # Check whether this visibility value is blocked by a third party module
-        allowed_by_third_party_rules = (
+        allowed_by_third_party_rules = await (
-            await (
+            self._third_party_event_rules.check_visibility_can_be_modified(
-                self._third_party_event_rules.check_visibility_can_be_modified(
+                room_id, visibility
-                    room_id, visibility
-                )
             )
         )
         if not allowed_by_third_party_rules:

synapse/handlers/room_member.py

@@ -1302,11 +1302,11 @@ class RoomMemberHandler(metaclass=abc.ABCMeta):
         # If this is going to be a local join, additional information must
         # be included in the event content in order to efficiently validate
         # the event.
-        content[EventContentFields.AUTHORISING_USER] = (
+        content[
-            await self.event_auth_handler.get_user_which_could_invite(
+            EventContentFields.AUTHORISING_USER
-                room_id,
+        ] = await self.event_auth_handler.get_user_which_could_invite(
-                state_before_join,
+            room_id,
-            )
+            state_before_join,
         )
 
         return False, []
@@ -1415,9 +1415,9 @@ class RoomMemberHandler(metaclass=abc.ABCMeta):
 
         if requester is not None:
             sender = UserID.from_string(event.sender)
-            assert (
+            assert sender == requester.user, (
-                sender == requester.user
+                "Sender (%s) must be same as requester (%s)" % (sender, requester.user)
-            ), "Sender (%s) must be same as requester (%s)" % (sender, requester.user)
+            )
             assert self.hs.is_mine(sender), "Sender must be our own: %s" % (sender,)
         else:
             requester = types.create_requester(target_user)

synapse/handlers/search.py

@@ -423,9 +423,9 @@ class SearchHandler:
             }
 
         if search_result.room_groups and "room_id" in group_keys:
-            rooms_cat_res.setdefault("groups", {})[
+            rooms_cat_res.setdefault("groups", {})["room_id"] = (
-                "room_id"
+                search_result.room_groups
-            ] = search_result.room_groups
+            )
 
         if sender_group and "sender" in group_keys:
             rooms_cat_res.setdefault("groups", {})["sender"] = sender_group

synapse/handlers/sliding_sync/__init__.py

@@ -587,9 +587,7 @@ class SlidingSyncHandler:
                 Membership.LEAVE,
                 Membership.BAN,
             ):
-                to_bound = (
+                to_bound = room_membership_for_user_at_to_token.event_pos.to_room_stream_token()
-                    room_membership_for_user_at_to_token.event_pos.to_room_stream_token()
-                )
 
             timeline_from_bound = from_bound
             if ignore_timeline_bound:

synapse/handlers/sliding_sync/extensions.py

@@ -386,9 +386,9 @@ class SlidingSyncExtensionHandler:
             if have_push_rules_changed:
                 global_account_data_map = dict(global_account_data_map)
                 # TODO: This should take into account the `from_token` and `to_token`
-                global_account_data_map[AccountDataTypes.PUSH_RULES] = (
+                global_account_data_map[
-                    await self.push_rules_handler.push_rules_for_user(sync_config.user)
+                    AccountDataTypes.PUSH_RULES
-                )
+                ] = await self.push_rules_handler.push_rules_for_user(sync_config.user)
         else:
             # TODO: This should take into account the `to_token`
             all_global_account_data = await self.store.get_global_account_data_for_user(
@@ -397,9 +397,9 @@ class SlidingSyncExtensionHandler:
 
             global_account_data_map = dict(all_global_account_data)
             # TODO: This should take into account the  `to_token`
-            global_account_data_map[AccountDataTypes.PUSH_RULES] = (
+            global_account_data_map[
-                await self.push_rules_handler.push_rules_for_user(sync_config.user)
+                AccountDataTypes.PUSH_RULES
-            )
+            ] = await self.push_rules_handler.push_rules_for_user(sync_config.user)
 
         # Fetch room account data
         account_data_by_room_map: Mapping[str, Mapping[str, JsonMapping]] = {}

synapse/handlers/sliding_sync/room_lists.py

@@ -293,10 +293,11 @@ class SlidingSyncRoomLists:
                         is_encrypted=is_encrypted,
                     )
 
-        newly_joined_room_ids, newly_left_room_map = (
+        (
-            await self._get_newly_joined_and_left_rooms(
+            newly_joined_room_ids,
-                user_id, from_token=from_token, to_token=to_token
+            newly_left_room_map,
-            )
+        ) = await self._get_newly_joined_and_left_rooms(
+            user_id, from_token=from_token, to_token=to_token
         )
         dm_room_ids = await self._get_dm_rooms_for_user(user_id)
 
@@ -958,10 +959,11 @@ class SlidingSyncRoomLists:
             else:
                 rooms_for_user[room_id] = change_room_for_user
 
-        newly_joined_room_ids, newly_left_room_ids = (
+        (
-            await self._get_newly_joined_and_left_rooms(
+            newly_joined_room_ids,
-                user_id, to_token=to_token, from_token=from_token
+            newly_left_room_ids,
-            )
+        ) = await self._get_newly_joined_and_left_rooms(
+            user_id, to_token=to_token, from_token=from_token
         )
 
         dm_room_ids = await self._get_dm_rooms_for_user(user_id)

synapse/handlers/sync.py

@@ -183,10 +183,7 @@ class JoinedSyncResult:
         to tell if room needs to be part of the sync result.
         """
         return bool(
-            self.timeline
+            self.timeline or self.state or self.ephemeral or self.account_data
-            or self.state
-            or self.ephemeral
-            or self.account_data
             # nb the notification count does not, er, count: if there's nothing
             # else in the result, we don't need to send it.
         )
@@ -575,10 +572,10 @@ class SyncHandler:
         if timeout == 0 or since_token is None or full_state:
             # we are going to return immediately, so don't bother calling
             # notifier.wait_for_events.
-            result: Union[SyncResult, E2eeSyncResult] = (
+            result: Union[
-                await self.current_sync_for_user(
+                SyncResult, E2eeSyncResult
-                    sync_config, sync_version, since_token, full_state=full_state
+            ] = await self.current_sync_for_user(
-                )
+                sync_config, sync_version, since_token, full_state=full_state
             )
         else:
             # Otherwise, we wait for something to happen and report it to the user.
@@ -673,10 +670,10 @@ class SyncHandler:
 
             # Go through the `/sync` v2 path
             if sync_version == SyncVersion.SYNC_V2:
-                sync_result: Union[SyncResult, E2eeSyncResult] = (
+                sync_result: Union[
-                    await self.generate_sync_result(
+                    SyncResult, E2eeSyncResult
-                        sync_config, since_token, full_state
+                ] = await self.generate_sync_result(
-                    )
+                    sync_config, since_token, full_state
                 )
             # Go through the MSC3575 Sliding Sync `/sync/e2ee` path
             elif sync_version == SyncVersion.E2EE_SYNC:
@@ -1488,13 +1485,16 @@ class SyncHandler:
                     # timeline here. The caller will then dedupe any redundant
                     # ones.
 
-                    state_ids = await self._state_storage_controller.get_state_ids_for_event(
+                    state_ids = (
-                        batch.events[0].event_id,
+                        await self._state_storage_controller.get_state_ids_for_event(
-                        # we only want members!
+                            batch.events[0].event_id,
-                        state_filter=StateFilter.from_types(
+                            # we only want members!
-                            (EventTypes.Member, member) for member in members_to_fetch
+                            state_filter=StateFilter.from_types(
-                        ),
+                                (EventTypes.Member, member)
-                        await_full_state=False,
+                                for member in members_to_fetch
+                            ),
+                            await_full_state=False,
+                        )
                     )
             return state_ids
 
@@ -2166,18 +2166,18 @@ class SyncHandler:
 
             if push_rules_changed:
                 global_account_data = dict(global_account_data)
-                global_account_data[AccountDataTypes.PUSH_RULES] = (
+                global_account_data[
-                    await self._push_rules_handler.push_rules_for_user(sync_config.user)
+                    AccountDataTypes.PUSH_RULES
-                )
+                ] = await self._push_rules_handler.push_rules_for_user(sync_config.user)
         else:
             all_global_account_data = await self.store.get_global_account_data_for_user(
                 user_id
             )
 
             global_account_data = dict(all_global_account_data)
-            global_account_data[AccountDataTypes.PUSH_RULES] = (
+            global_account_data[
-                await self._push_rules_handler.push_rules_for_user(sync_config.user)
+                AccountDataTypes.PUSH_RULES
-            )
+            ] = await self._push_rules_handler.push_rules_for_user(sync_config.user)
 
         account_data_for_user = (
             await sync_config.filter_collection.filter_global_account_data(

synapse/handlers/worker_lock.py

@@ -183,7 +183,7 @@ class WorkerLocksHandler:
             return
 
         def _wake_all_locks(
-            locks: Collection[Union[WaitingLock, WaitingMultiLock]]
+            locks: Collection[Union[WaitingLock, WaitingMultiLock]],
         ) -> None:
             for lock in locks:
                 deferred = lock.deferred

synapse/http/client.py

@@ -1313,6 +1313,5 @@ def is_unknown_endpoint(
         )
     ) or (
         # Older Synapses returned a 400 error.
-        e.code == 400
+        e.code == 400 and synapse_error.errcode == Codes.UNRECOGNIZED
-        and synapse_error.errcode == Codes.UNRECOGNIZED
     )

synapse/http/server.py

@@ -233,7 +233,7 @@ def return_html_error(
 
 
 def wrap_async_request_handler(
-    h: Callable[["_AsyncResource", "SynapseRequest"], Awaitable[None]]
+    h: Callable[["_AsyncResource", "SynapseRequest"], Awaitable[None]],
 ) -> Callable[["_AsyncResource", "SynapseRequest"], "defer.Deferred[None]"]:
     """Wraps an async request handler so that it calls request.processing.
 

synapse/logging/_terse_json.py

@@ -22,6 +22,7 @@
 """
 Log formatters that output terse JSON.
 """
+
 import json
 import logging
 

synapse/logging/context.py

@@ -20,7 +20,7 @@
 #
 #
 
-""" Thread-local-alike tracking of log contexts within synapse
+"""Thread-local-alike tracking of log contexts within synapse
 
 This module provides objects and utilities for tracking contexts through
 synapse code, so that log lines can include a request identifier, and so that
@@ -29,6 +29,7 @@ them.
 
 See doc/log_contexts.rst for details on how this works.
 """
+
 import logging
 import threading
 import typing
@@ -751,7 +752,7 @@ def preserve_fn(
     f: Union[
         Callable[P, R],
         Callable[P, Awaitable[R]],
-    ]
+    ],
 ) -> Callable[P, "defer.Deferred[R]"]:
     """Function decorator which wraps the function with run_in_background"""
 

synapse/logging/opentracing.py

@@ -169,6 +169,7 @@ Gotchas
   than one caller? Will all of those calling functions have be in a context
   with an active span?
 """
+
 import contextlib
 import enum
 import inspect
@@ -414,7 +415,7 @@ def ensure_active_span(
     """
 
     def ensure_active_span_inner_1(
-        func: Callable[P, R]
+        func: Callable[P, R],
     ) -> Callable[P, Union[Optional[T], R]]:
         @wraps(func)
         def ensure_active_span_inner_2(
@@ -700,7 +701,7 @@ def set_operation_name(operation_name: str) -> None:
 
 @only_if_tracing
 def force_tracing(
-    span: Union["opentracing.Span", _Sentinel] = _Sentinel.sentinel
+    span: Union["opentracing.Span", _Sentinel] = _Sentinel.sentinel,
 ) -> None:
     """Force sampling for the active/given span and its children.
 
@@ -1093,9 +1094,10 @@ def trace_servlet(
 
             # Mypy seems to think that start_context.tag below can be Optional[str], but
             # that doesn't appear to be correct and works in practice.
-            request_tags[
+
-                SynapseTags.REQUEST_TAG
+            request_tags[SynapseTags.REQUEST_TAG] = (
-            ] = request.request_metrics.start_context.tag  # type: ignore[assignment]
+                request.request_metrics.start_context.tag  # type: ignore[assignment]
+            )
 
             # set the tags *after* the servlet completes, in case it decided to
             # prioritise the span (tags will get dropped on unprioritised spans)

synapse/metrics/background_process_metrics.py

@@ -293,7 +293,7 @@ def wrap_as_background_process(
     """
 
     def wrap_as_background_process_inner(
-        func: Callable[P, Awaitable[Optional[R]]]
+        func: Callable[P, Awaitable[Optional[R]]],
     ) -> Callable[P, "defer.Deferred[Optional[R]]"]:
         @wraps(func)
         def wrap_as_background_process_inner_2(

synapse/push/bulk_push_rule_evaluator.py

@@ -304,9 +304,9 @@ class BulkPushRuleEvaluator:
                     if relation_type == "m.thread" and event.content.get(
                         "m.relates_to", {}
                     ).get("is_falling_back", False):
-                        related_events["m.in_reply_to"][
+                        related_events["m.in_reply_to"]["im.vector.is_falling_back"] = (
-                            "im.vector.is_falling_back"
+                            ""
-                        ] = ""
+                        )
 
         return related_events
 
@@ -372,7 +372,8 @@ class BulkPushRuleEvaluator:
                 gather_results(
                     (
                         run_in_background(  # type: ignore[call-arg]
-                            self.store.get_number_joined_users_in_room, event.room_id  # type: ignore[arg-type]
+                            self.store.get_number_joined_users_in_room,
+                            event.room_id,  # type: ignore[arg-type]
                         ),
                         run_in_background(
                             self._get_power_levels_and_sender_level,

synapse/replication/http/federation.py

@@ -119,7 +119,9 @@ class ReplicationFederationSendEventsRestServlet(ReplicationEndpoint):
 
         return payload
 
-    async def _handle_request(self, request: Request, content: JsonDict) -> Tuple[int, JsonDict]:  # type: ignore[override]
+    async def _handle_request(  # type: ignore[override]
+        self, request: Request, content: JsonDict
+    ) -> Tuple[int, JsonDict]:
         with Measure(self.clock, "repl_fed_send_events_parse"):
             room_id = content["room_id"]
             backfilled = content["backfilled"]

synapse/replication/http/push.py

@@ -98,7 +98,9 @@ class ReplicationCopyPusherRestServlet(ReplicationEndpoint):
         self._store = hs.get_datastores().main
 
     @staticmethod
-    async def _serialize_payload(user_id: str, old_room_id: str, new_room_id: str) -> JsonDict:  # type: ignore[override]
+    async def _serialize_payload(  # type: ignore[override]
+        user_id: str, old_room_id: str, new_room_id: str
+    ) -> JsonDict:
         return {}
 
     async def _handle_request(  # type: ignore[override]
@@ -109,7 +111,6 @@ class ReplicationCopyPusherRestServlet(ReplicationEndpoint):
         old_room_id: str,
         new_room_id: str,
     ) -> Tuple[int, JsonDict]:
-
         await self._store.copy_push_rules_from_room_to_room_for_user(
             old_room_id, new_room_id, user_id
         )

synapse/replication/tcp/client.py

@@ -18,8 +18,8 @@
 # [This file includes modifications made by New Vector Limited]
 #
 #
-"""A replication client for use by synapse workers.
+"""A replication client for use by synapse workers."""
-"""
+
 import logging
 from typing import TYPE_CHECKING, Dict, Iterable, Optional, Set, Tuple
 

synapse/replication/tcp/commands.py

@@ -23,6 +23,7 @@
 The VALID_SERVER_COMMANDS and VALID_CLIENT_COMMANDS define which commands are
 allowed to be sent by which side.
 """
+
 import abc
 import logging
 from typing import List, Optional, Tuple, Type, TypeVar

synapse/replication/tcp/handler.py

@@ -857,7 +857,7 @@ UpdateRow = TypeVar("UpdateRow")
 
 
 def _batch_updates(
-    updates: Iterable[Tuple[UpdateToken, UpdateRow]]
+    updates: Iterable[Tuple[UpdateToken, UpdateRow]],
 ) -> Iterator[Tuple[UpdateToken, List[UpdateRow]]]:
     """Collect stream updates with the same token together
 

synapse/replication/tcp/protocol.py

@@ -23,6 +23,7 @@ protocols.
 
 An explanation of this protocol is available in docs/tcp_replication.md
 """
+
 import fcntl
 import logging
 import struct

synapse/replication/tcp/resource.py

@@ -18,8 +18,7 @@
 # [This file includes modifications made by New Vector Limited]
 #
 #
-"""The server side of the replication stream.
+"""The server side of the replication stream."""
-"""
 
 import logging
 import random
@@ -307,7 +306,7 @@ class ReplicationStreamer:
 
 
 def _batch_updates(
-    updates: List[Tuple[Token, StreamRow]]
+    updates: List[Tuple[Token, StreamRow]],
 ) -> List[Tuple[Optional[Token], StreamRow]]:
     """Takes a list of updates of form [(token, row)] and sets the token to
     None for all rows where the next row has the same token. This is used to

synapse/replication/tcp/streams/_base.py

@@ -247,7 +247,7 @@ class _StreamFromIdGen(Stream):
 
 
 def current_token_without_instance(
-    current_token: Callable[[], int]
+    current_token: Callable[[], int],
 ) -> Callable[[str], int]:
     """Takes a current token callback function for a single writer stream
     that doesn't take an instance name parameter and wraps it in a function that

synapse/rest/admin/registration_tokens.py

@@ -181,8 +181,7 @@ class NewRegistrationTokenRestServlet(RestServlet):
 
         uses_allowed = body.get("uses_allowed", None)
         if not (
-            uses_allowed is None
+            uses_allowed is None or (type(uses_allowed) is int and uses_allowed >= 0)  # noqa: E721
-            or (type(uses_allowed) is int and uses_allowed >= 0)  # noqa: E721
         ):
             raise SynapseError(
                 HTTPStatus.BAD_REQUEST,

synapse/rest/client/_base.py

@@ -19,8 +19,8 @@
 #
 #
 
-"""This module contains base REST classes for constructing client v1 servlets.
+"""This module contains base REST classes for constructing client v1 servlets."""
-"""
+
 import logging
 import re
 from typing import Any, Awaitable, Callable, Iterable, Pattern, Tuple, TypeVar, cast

synapse/rest/client/account_data.py

@@ -108,9 +108,9 @@ class AccountDataServlet(RestServlet):
 
         # Push rules are stored in a separate table and must be queried separately.
         if account_data_type == AccountDataTypes.PUSH_RULES:
-            account_data: Optional[JsonMapping] = (
+            account_data: Optional[
-                await self._push_rules_handler.push_rules_for_user(requester.user)
+                JsonMapping
-            )
+            ] = await self._push_rules_handler.push_rules_for_user(requester.user)
         else:
             account_data = await self.store.get_global_account_data_by_type_for_user(
                 user_id, account_data_type

synapse/rest/client/account_validity.py

@@ -48,9 +48,7 @@ class AccountValidityRenewServlet(RestServlet):
         self.account_renewed_template = (
             hs.config.account_validity.account_validity_account_renewed_template
         )
-        self.account_previously_renewed_template = (
+        self.account_previously_renewed_template = hs.config.account_validity.account_validity_account_previously_renewed_template
-            hs.config.account_validity.account_validity_account_previously_renewed_template
-        )
         self.invalid_token_template = (
             hs.config.account_validity.account_validity_invalid_token_template
         )

synapse/rest/client/events.py

@@ -20,6 +20,7 @@
 #
 
 """This module contains REST servlets to do with event streaming, /events."""
+
 import logging
 from typing import TYPE_CHECKING, Dict, List, Tuple, Union
 

synapse/rest/client/presence.py

@@ -19,8 +19,8 @@
 #
 #
 
-""" This module contains REST servlets to do with presence: /presence/<paths>
+"""This module contains REST servlets to do with presence: /presence/<paths>"""
-"""
+
 import logging
 from typing import TYPE_CHECKING, Tuple
 

synapse/rest/client/profile.py

@@ -19,7 +19,7 @@
 #
 #
 
-""" This module contains REST servlets to do with profile: /profile/<paths> """
+"""This module contains REST servlets to do with profile: /profile/<paths>"""
 
 from http import HTTPStatus
 from typing import TYPE_CHECKING, Tuple

synapse/rest/client/register.py

@@ -640,12 +640,10 @@ class RegisterRestServlet(RestServlet):
             if not password_hash:
                 raise SynapseError(400, "Missing params: password", Codes.MISSING_PARAM)
 
-            desired_username = (
+            desired_username = await (
-                await (
+                self.password_auth_provider.get_username_for_registration(
-                    self.password_auth_provider.get_username_for_registration(
+                    auth_result,
-                        auth_result,
+                    params,
-                        params,
-                    )
                 )
             )
 
@@ -696,11 +694,9 @@ class RegisterRestServlet(RestServlet):
                 session_id
             )
 
-            display_name = (
+            display_name = await (
-                await (
+                self.password_auth_provider.get_displayname_for_registration(
-                    self.password_auth_provider.get_displayname_for_registration(
+                    auth_result, params
-                        auth_result, params
-                    )
                 )
             )
 

synapse/rest/client/room.py

@@ -19,7 +19,8 @@
 #
 #
 
-""" This module contains REST servlets to do with rooms: /rooms/<paths> """
+"""This module contains REST servlets to do with rooms: /rooms/<paths>"""
+
 import logging
 import re
 from enum import Enum

synapse/rest/client/sync.py

@@ -1045,9 +1045,9 @@ class SlidingSyncRestServlet(RestServlet):
                 serialized_rooms[room_id]["initial"] = room_result.initial
 
             if room_result.unstable_expanded_timeline:
-                serialized_rooms[room_id][
+                serialized_rooms[room_id]["unstable_expanded_timeline"] = (
-                    "unstable_expanded_timeline"
+                    room_result.unstable_expanded_timeline
-                ] = room_result.unstable_expanded_timeline
+                )
 
             # This will be omitted for invite/knock rooms with `stripped_state`
             if (
@@ -1082,9 +1082,9 @@ class SlidingSyncRestServlet(RestServlet):
 
             # This will be omitted for invite/knock rooms with `stripped_state`
             if room_result.prev_batch is not None:
-                serialized_rooms[room_id]["prev_batch"] = (
+                serialized_rooms[room_id][
-                    await room_result.prev_batch.to_string(self.store)
+                    "prev_batch"
-                )
+                ] = await room_result.prev_batch.to_string(self.store)
 
             # This will be omitted for invite/knock rooms with `stripped_state`
             if room_result.num_live is not None:

synapse/rest/client/transactions.py

@@ -21,6 +21,7 @@
 
 """This module contains logic for storing HTTP PUT transactions. This is used
 to ensure idempotency when performing PUTs using the REST API."""
+
 import logging
 from typing import TYPE_CHECKING, Awaitable, Callable, Dict, Hashable, Tuple
 

synapse/rest/key/v2/remote_key_resource.py

@@ -191,10 +191,10 @@ class RemoteKey(RestServlet):
         server_keys: Dict[Tuple[str, str], Optional[FetchKeyResultForRemote]] = {}
         for server_name, key_ids in query.items():
             if key_ids:
-                results: Mapping[str, Optional[FetchKeyResultForRemote]] = (
+                results: Mapping[
-                    await self.store.get_server_keys_json_for_remote(
+                    str, Optional[FetchKeyResultForRemote]
-                        server_name, key_ids
+                ] = await self.store.get_server_keys_json_for_remote(
-                    )
+                    server_name, key_ids
                 )
             else:
                 results = await self.store.get_all_server_keys_json_for_remote(

synapse/rest/well_known.py

@@ -65,9 +65,9 @@ class WellKnownBuilder:
             }
             account_management_url = await auth.account_management_url()
             if account_management_url is not None:
-                result["org.matrix.msc2965.authentication"][
+                result["org.matrix.msc2965.authentication"]["account"] = (
-                    "account"
+                    account_management_url
-                ] = account_management_url
+                )
 
         if self._config.server.extra_well_known_client_content:
             for (

synapse/server_notices/resource_limits_server_notices.py

@@ -119,7 +119,9 @@ class ResourceLimitsServerNotices:
             elif not currently_blocked and limit_msg:
                 # Room is not notifying of a block, when it ought to be.
                 await self._apply_limit_block_notification(
-                    user_id, limit_msg, limit_type  # type: ignore
+                    user_id,
+                    limit_msg,
+                    limit_type,  # type: ignore
                 )
         except SynapseError as e:
             logger.error("Error sending resource limits server notice: %s", e)

synapse/storage/controllers/persist_events.py

@@ -416,7 +416,7 @@ class EventsPersistenceStorageController:
         set_tag(SynapseTags.FUNC_ARG_PREFIX + "backfilled", str(backfilled))
 
         async def enqueue(
-            item: Tuple[str, List[Tuple[EventBase, EventContext]]]
+            item: Tuple[str, List[Tuple[EventBase, EventContext]]],
         ) -> Dict[str, str]:
             room_id, evs_ctxs = item
             return await self._event_persist_queue.add_to_queue(
@@ -792,9 +792,9 @@ class EventsPersistenceStorageController:
         )
 
         # Remove any events which are prev_events of any existing events.
-        existing_prevs: Collection[str] = (
+        existing_prevs: Collection[
-            await self.persist_events_store._get_events_which_are_prevs(result)
+            str
-        )
+        ] = await self.persist_events_store._get_events_which_are_prevs(result)
         result.difference_update(existing_prevs)
 
         # Finally handle the case where the new events have soft-failed prev

synapse/storage/databases/main/client_ips.py

@@ -238,9 +238,7 @@ class ClientIpBackgroundUpdateStore(SQLBaseStore):
                 INNER JOIN user_ips USING (user_id, access_token, ip)
                 GROUP BY user_id, access_token, ip
                 HAVING count(*) > 1
-                """.format(
+                """.format(clause),
-                    clause
-                ),
                 args,
             )
             res = cast(
@@ -373,9 +371,7 @@ class ClientIpBackgroundUpdateStore(SQLBaseStore):
                     LIMIT ?
                 ) c
                 INNER JOIN user_ips AS u USING (user_id, device_id, last_seen)
-            """ % {
+            """ % {"where_clause": where_clause}
-                "where_clause": where_clause
-            }
             txn.execute(sql, where_args + [batch_size])
 
             rows = cast(List[Tuple[int, str, str, str, str]], txn.fetchall())

synapse/storage/databases/main/deviceinbox.py

@@ -1116,7 +1116,7 @@ class DeviceInboxBackgroundUpdateStore(SQLBaseStore):
 
             txn.execute(sql, (start, stop))
 
-            destinations = {d for d, in txn}
+            destinations = {d for (d,) in txn}
             to_remove = set()
             for d in destinations:
                 try:

synapse/storage/databases/main/devices.py

@@ -670,9 +670,7 @@ class DeviceWorkerStore(RoomMemberWorkerStore, EndToEndKeyWorkerStore):
                         result["keys"] = keys
 
                     device_display_name = None
-                    if (
+                    if self.hs.config.federation.allow_device_name_lookup_over_federation:
-                        self.hs.config.federation.allow_device_name_lookup_over_federation
-                    ):
                         device_display_name = device.display_name
                     if device_display_name:
                         result["device_display_name"] = device_display_name
@@ -917,7 +915,7 @@ class DeviceWorkerStore(RoomMemberWorkerStore, EndToEndKeyWorkerStore):
             from_key,
             to_key,
         )
-        return {u for u, in rows}
+        return {u for (u,) in rows}
 
     @cancellable
     async def get_users_whose_devices_changed(
@@ -968,7 +966,7 @@ class DeviceWorkerStore(RoomMemberWorkerStore, EndToEndKeyWorkerStore):
                     txn.database_engine, "user_id", chunk
                 )
                 txn.execute(sql % (clause,), [from_key, to_key] + args)
-                changes.update(user_id for user_id, in txn)
+                changes.update(user_id for (user_id,) in txn)
 
             return changes
 
@@ -1520,7 +1518,7 @@ class DeviceWorkerStore(RoomMemberWorkerStore, EndToEndKeyWorkerStore):
             args: List[Any],
         ) -> Set[str]:
             txn.execute(sql.format(clause=clause), args)
-            return {user_id for user_id, in txn}
+            return {user_id for (user_id,) in txn}
 
         changes = set()
         for chunk in batch_iter(changed_room_ids, 1000):
@@ -1560,7 +1558,7 @@ class DeviceWorkerStore(RoomMemberWorkerStore, EndToEndKeyWorkerStore):
             txn: LoggingTransaction,
         ) -> Set[str]:
             txn.execute(sql, (from_id, to_id))
-            return {room_id for room_id, in txn}
+            return {room_id for (room_id,) in txn}
 
         return await self.db_pool.runInteraction(
             "get_all_device_list_changes",

synapse/storage/databases/main/e2e_room_keys.py

@@ -387,9 +387,7 @@ class EndToEndRoomKeyStore(EndToEndRoomKeyBackgroundStore):
                is_verified, session_data
         FROM e2e_room_keys
         WHERE user_id = ? AND version = ? AND (%s)
-        """ % (
+        """ % (" OR ".join(where_clauses))
-            " OR ".join(where_clauses)
-        )
 
         txn.execute(sql, params)
 

synapse/storage/databases/main/end_to_end_keys.py

@@ -472,9 +472,7 @@ class EndToEndKeyWorkerStore(EndToEndKeyBackgroundStore, CacheInvalidationWorker
         signature_sql = """
             SELECT user_id, key_id, target_device_id, signature
             FROM e2e_cross_signing_signatures WHERE %s
-            """ % (
+            """ % (" OR ".join("(" + q + ")" for q in signature_query_clauses))
-            " OR ".join("(" + q + ")" for q in signature_query_clauses)
-        )
 
         txn.execute(signature_sql, signature_query_params)
         return cast(
@@ -917,9 +915,7 @@ class EndToEndKeyWorkerStore(EndToEndKeyBackgroundStore, CacheInvalidationWorker
                         FROM e2e_cross_signing_keys
                         WHERE %(clause)s
                         ORDER BY user_id, keytype, stream_id DESC
-                """ % {
+                """ % {"clause": clause}
-                    "clause": clause
-                }
             else:
                 # SQLite has special handling for bare columns when using
                 # MIN/MAX with a `GROUP BY` clause where it picks the value from
@@ -929,9 +925,7 @@ class EndToEndKeyWorkerStore(EndToEndKeyBackgroundStore, CacheInvalidationWorker
                         FROM e2e_cross_signing_keys
                         WHERE %(clause)s
                         GROUP BY user_id, keytype
-                """ % {
+                """ % {"clause": clause}
-                    "clause": clause
-                }
 
             txn.execute(sql, params)
 

synapse/storage/databases/main/event_federation.py

@@ -326,7 +326,7 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
             """
 
             rows = txn.execute_values(sql, chains.items())
-            results.update(r for r, in rows)
+            results.update(r for (r,) in rows)
         else:
             # For SQLite we just fall back to doing a noddy for loop.
             sql = """
@@ -335,7 +335,7 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
             """
             for chain_id, max_no in chains.items():
                 txn.execute(sql, (chain_id, max_no))
-                results.update(r for r, in txn)
+                results.update(r for (r,) in txn)
 
         return results
 
@@ -645,7 +645,7 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
             ]
 
             rows = txn.execute_values(sql, args)
-            result.update(r for r, in rows)
+            result.update(r for (r,) in rows)
         else:
             # For SQLite we just fall back to doing a noddy for loop.
             sql = """
@@ -654,7 +654,7 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
             """
             for chain_id, (min_no, max_no) in chain_to_gap.items():
                 txn.execute(sql, (chain_id, min_no, max_no))
-                result.update(r for r, in txn)
+                result.update(r for (r,) in txn)
 
         return result
 
@@ -1220,13 +1220,11 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
                 HAVING count(*) > ?
                 ORDER BY count(*) DESC
                 LIMIT ?
-            """ % (
+            """ % (where_clause,)
-                where_clause,
-            )
 
             query_args = list(itertools.chain(room_id_filter, [min_count, limit]))
             txn.execute(sql, query_args)
-            return [room_id for room_id, in txn]
+            return [room_id for (room_id,) in txn]
 
         return await self.db_pool.runInteraction(
             "get_rooms_with_many_extremities", _get_rooms_with_many_extremities_txn
@@ -1358,7 +1356,7 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
 
         def get_forward_extremeties_for_room_txn(txn: LoggingTransaction) -> List[str]:
             txn.execute(sql, (stream_ordering, room_id))
-            return [event_id for event_id, in txn]
+            return [event_id for (event_id,) in txn]
 
         event_ids = await self.db_pool.runInteraction(
             "get_forward_extremeties_for_room", get_forward_extremeties_for_room_txn

synapse/storage/databases/main/event_push_actions.py

@@ -1860,9 +1860,7 @@ class EventPushActionsWorkerStore(ReceiptsWorkerStore, StreamWorkerStore, SQLBas
                     AND epa.notif = 1
                 ORDER BY epa.stream_ordering DESC
                 LIMIT ?
-            """ % (
+            """ % (before_clause,)
-                before_clause,
-            )
             txn.execute(sql, args)
             return cast(
                 List[Tuple[str, str, int, int, str, bool, str, int]], txn.fetchall()

synapse/storage/databases/main/events.py

@@ -429,9 +429,7 @@ class PersistEventsStore:
             if event_type == EventTypes.Member and self.is_mine_id(state_key)
         ]
 
-        membership_snapshot_shared_insert_values: (
+        membership_snapshot_shared_insert_values: SlidingSyncMembershipSnapshotSharedInsertValues = {}
-            SlidingSyncMembershipSnapshotSharedInsertValues
-        ) = {}
         membership_infos_to_insert_membership_snapshots: List[
             SlidingSyncMembershipInfo
         ] = []
@@ -719,7 +717,7 @@ class PersistEventsStore:
             keyvalues={},
             retcols=("event_id",),
         )
-        already_persisted_events = {event_id for event_id, in rows}
+        already_persisted_events = {event_id for (event_id,) in rows}
         state_events = [
             event
             for event in state_events
@@ -1830,12 +1828,8 @@ class PersistEventsStore:
         if sliding_sync_table_changes.to_insert_membership_snapshots:
             # Update the `sliding_sync_membership_snapshots` table
             #
-            sliding_sync_snapshot_keys = (
+            sliding_sync_snapshot_keys = sliding_sync_table_changes.membership_snapshot_shared_insert_values.keys()
-                sliding_sync_table_changes.membership_snapshot_shared_insert_values.keys()
+            sliding_sync_snapshot_values = sliding_sync_table_changes.membership_snapshot_shared_insert_values.values()
-            )
-            sliding_sync_snapshot_values = (
-                sliding_sync_table_changes.membership_snapshot_shared_insert_values.values()
-            )
             # We need to insert/update regardless of whether we have
             # `sliding_sync_snapshot_keys` because there are other fields in the `ON
             # CONFLICT` upsert to run (see inherit case (explained in
@@ -3361,7 +3355,7 @@ class PersistEventsStore:
         )
 
         potential_backwards_extremities.difference_update(
-            e for e, in existing_events_outliers
+            e for (e,) in existing_events_outliers
         )
 
         if potential_backwards_extremities:

synapse/storage/databases/main/events_bg_updates.py

@@ -647,7 +647,8 @@ class EventsBackgroundUpdatesStore(StreamWorkerStore, StateDeltasStore, SQLBaseS
                 room_ids = {row[0] for row in rows}
                 for room_id in room_ids:
                     txn.call_after(
-                        self.get_latest_event_ids_in_room.invalidate, (room_id,)  # type: ignore[attr-defined]
+                        self.get_latest_event_ids_in_room.invalidate,  # type: ignore[attr-defined]
+                        (room_id,),
                     )
 
             self.db_pool.simple_delete_many_txn(
@@ -2065,9 +2066,7 @@ class EventsBackgroundUpdatesStore(StreamWorkerStore, StateDeltasStore, SQLBaseS
                 )
 
             # Map of values to insert/update in the `sliding_sync_membership_snapshots` table
-            sliding_sync_membership_snapshots_insert_map: (
+            sliding_sync_membership_snapshots_insert_map: SlidingSyncMembershipSnapshotSharedInsertValues = {}
-                SlidingSyncMembershipSnapshotSharedInsertValues
-            ) = {}
             if membership == Membership.JOIN:
                 # If we're still joined, we can pull from current state.
                 current_state_ids_map: StateMap[
@@ -2149,14 +2148,15 @@ class EventsBackgroundUpdatesStore(StreamWorkerStore, StateDeltasStore, SQLBaseS
                 # membership (i.e. the room shouldn't disappear if your using the
                 # `is_encrypted` filter and you leave).
                 if membership in (Membership.LEAVE, Membership.BAN) and is_outlier:
-                    invite_or_knock_event_id, invite_or_knock_membership = (
+                    (
-                        await self.db_pool.runInteraction(
+                        invite_or_knock_event_id,
-                            "sliding_sync_membership_snapshots_bg_update._find_previous_membership",
+                        invite_or_knock_membership,
-                            _find_previous_membership_txn,
+                    ) = await self.db_pool.runInteraction(
-                            room_id,
+                        "sliding_sync_membership_snapshots_bg_update._find_previous_membership",
-                            user_id,
+                        _find_previous_membership_txn,
-                            membership_event_id,
+                        room_id,
-                        )
+                        user_id,
+                        membership_event_id,
                     )
 
                 # Pull from the stripped state on the invite/knock event
@@ -2484,9 +2484,7 @@ def _resolve_stale_data_in_sliding_sync_joined_rooms_table(
                 "progress_json": "{}",
             },
         )
-        depends_on = (
+        depends_on = _BackgroundUpdates.SLIDING_SYNC_PREFILL_JOINED_ROOMS_TO_RECALCULATE_TABLE_BG_UPDATE
-            _BackgroundUpdates.SLIDING_SYNC_PREFILL_JOINED_ROOMS_TO_RECALCULATE_TABLE_BG_UPDATE
-        )
 
     # Now kick-off the background update to catch-up with what we missed while Synapse
     # was downgraded.

synapse/storage/databases/main/events_worker.py

@@ -1665,7 +1665,7 @@ class EventsWorkerStore(SQLBaseStore):
                 txn.database_engine, "e.event_id", event_ids
             )
             txn.execute(sql + clause, args)
-            found_events = {eid for eid, in txn}
+            found_events = {eid for (eid,) in txn}
 
             # ... and then we can update the results for each key
             return {eid: (eid in found_events) for eid in event_ids}
@@ -1864,9 +1864,9 @@ class EventsWorkerStore(SQLBaseStore):
                 " LIMIT ?"
             )
             txn.execute(sql, (-last_id, -current_id, instance_name, limit))
-            new_event_updates: List[Tuple[int, Tuple[str, str, str, str, str, str]]] = (
+            new_event_updates: List[
-                []
+                Tuple[int, Tuple[str, str, str, str, str, str]]
-            )
+            ] = []
             row: Tuple[int, str, str, str, str, str, str]
             # Type safety: iterating over `txn` yields `Tuple`, i.e.
             # `Tuple[Any, ...]` of arbitrary length. Mypy detects assigning a

synapse/storage/databases/main/purge_events.py

@@ -201,7 +201,7 @@ class PurgeEventsStore(StateGroupWorkerStore, CacheInvalidationWorkerStore):
         txn.execute_batch(
             "INSERT INTO event_backward_extremities (room_id, event_id)"
             " VALUES (?, ?)",
-            [(room_id, event_id) for event_id, in new_backwards_extrems],
+            [(room_id, event_id) for (event_id,) in new_backwards_extrems],
         )
 
         logger.info("[purge] finding state groups referenced by deleted events")
@@ -215,7 +215,7 @@ class PurgeEventsStore(StateGroupWorkerStore, CacheInvalidationWorkerStore):
         """
         )
 
-        referenced_state_groups = {sg for sg, in txn}
+        referenced_state_groups = {sg for (sg,) in txn}
         logger.info(
             "[purge] found %i referenced state groups", len(referenced_state_groups)
         )

synapse/storage/databases/main/receipts.py

@@ -762,7 +762,7 @@ class ReceiptsWorkerStore(SQLBaseStore):
 
             txn.execute(sql, args)
 
-            return [room_id for room_id, in txn]
+            return [room_id for (room_id,) in txn]
 
         results: List[str] = []
         for batch in batch_iter(room_ids, 1000):
@@ -1030,9 +1030,7 @@ class ReceiptsWorkerStore(SQLBaseStore):
             SELECT event_id WHERE room_id = ? AND stream_ordering IN (
                 SELECT max(stream_ordering) WHERE %s
             )
-        """ % (
+        """ % (clause,)
-            clause,
-        )
 
         txn.execute(sql, [room_id] + list(args))
         rows = txn.fetchall()

synapse/storage/databases/main/registration.py

@@ -1250,9 +1250,7 @@ class RegistrationWorkerStore(CacheInvalidationWorkerStore):
                 SELECT address, session_id, medium, client_secret,
                 last_send_attempt, validated_at
                 FROM threepid_validation_session WHERE %s
-                """ % (
+                """ % (" AND ".join("%s = ?" % k for k in keyvalues.keys()),)
-                " AND ".join("%s = ?" % k for k in keyvalues.keys()),
-            )
 
             if validated is not None:
                 sql += " AND validated_at IS " + ("NOT NULL" if validated else "NULL")

synapse/storage/databases/main/room.py

@@ -1608,9 +1608,7 @@ class RoomWorkerStore(CacheInvalidationWorkerStore):
                 FROM event_reports AS er
                 JOIN room_stats_state ON room_stats_state.room_id = er.room_id
                 {}
-                """.format(
+                """.format(where_clause)
-                where_clause
-            )
             txn.execute(sql, args)
             count = cast(Tuple[int], txn.fetchone())[0]
 

synapse/storage/databases/main/roommember.py

@@ -232,9 +232,7 @@ class RoomMemberWorkerStore(EventsWorkerStore, CacheInvalidationWorkerStore):
                 AND m.room_id = c.room_id
                 AND m.user_id = c.state_key
                 WHERE c.type = 'm.room.member' AND c.room_id = ? AND m.membership = ? AND %s
-            """ % (
+            """ % (clause,)
-                clause,
-            )
             txn.execute(sql, (room_id, Membership.JOIN, *ids))
 
             return {r[0]: ProfileInfo(display_name=r[1], avatar_url=r[2]) for r in txn}
@@ -531,9 +529,7 @@ class RoomMemberWorkerStore(EventsWorkerStore, CacheInvalidationWorkerStore):
             WHERE
                 user_id = ?
                 AND %s
-        """ % (
+        """ % (clause,)
-            clause,
-        )
 
         txn.execute(sql, (user_id, *args))
         results = [
@@ -813,7 +809,7 @@ class RoomMemberWorkerStore(EventsWorkerStore, CacheInvalidationWorkerStore):
             """
 
             txn.execute(sql, (user_id, *args))
-            return {u: True for u, in txn}
+            return {u: True for (u,) in txn}
 
         to_return = {}
         for batch_user_ids in batch_iter(other_user_ids, 1000):
@@ -1031,7 +1027,7 @@ class RoomMemberWorkerStore(EventsWorkerStore, CacheInvalidationWorkerStore):
                     AND room_id = ?
             """
             txn.execute(sql, (room_id,))
-            return {d for d, in txn}
+            return {d for (d,) in txn}
 
         return await self.db_pool.runInteraction(
             "get_current_hosts_in_room", get_current_hosts_in_room_txn
@@ -1099,7 +1095,7 @@ class RoomMemberWorkerStore(EventsWorkerStore, CacheInvalidationWorkerStore):
             """
             txn.execute(sql, (room_id,))
             # `server_domain` will be `NULL` for malformed MXIDs with no colons.
-            return tuple(d for d, in txn if d is not None)
+            return tuple(d for (d,) in txn if d is not None)
 
         return await self.db_pool.runInteraction(
             "get_current_hosts_in_room_ordered", get_current_hosts_in_room_ordered_txn
@@ -1316,9 +1312,7 @@ class RoomMemberWorkerStore(EventsWorkerStore, CacheInvalidationWorkerStore):
                 room_id = ? AND membership = ?
                 AND NOT (%s)
                 LIMIT 1
-        """ % (
+        """ % (clause,)
-            clause,
-        )
 
         def _is_local_host_in_room_ignoring_users_txn(
             txn: LoggingTransaction,
@@ -1464,10 +1458,12 @@ class RoomMemberBackgroundUpdateStore(SQLBaseStore):
         self, progress: JsonDict, batch_size: int
     ) -> int:
         target_min_stream_id = progress.get(
-            "target_min_stream_id_inclusive", self._min_stream_order_on_start  # type: ignore[attr-defined]
+            "target_min_stream_id_inclusive",
+            self._min_stream_order_on_start,  # type: ignore[attr-defined]
         )
         max_stream_id = progress.get(
-            "max_stream_id_exclusive", self._stream_order_on_start + 1  # type: ignore[attr-defined]
+            "max_stream_id_exclusive",
+            self._stream_order_on_start + 1,  # type: ignore[attr-defined]
         )
 
         def add_membership_profile_txn(txn: LoggingTransaction) -> int:

synapse/storage/databases/main/search.py

@@ -177,9 +177,7 @@ class SearchBackgroundUpdateStore(SearchWorkerStore):
             AND (%s)
             ORDER BY stream_ordering DESC
             LIMIT ?
-            """ % (
+            """ % (" OR ".join("type = '%s'" % (t,) for t in TYPES),)
-                " OR ".join("type = '%s'" % (t,) for t in TYPES),
-            )
 
             txn.execute(sql, (target_min_stream_id, max_stream_id, batch_size))
 

synapse/storage/databases/main/state.py

@@ -535,7 +535,7 @@ class StateGroupWorkerStore(EventsWorkerStore, SQLBaseStore):
             desc="check_if_events_in_current_state",
         )
 
-        return frozenset(event_id for event_id, in rows)
+        return frozenset(event_id for (event_id,) in rows)
 
     # FIXME: how should this be cached?
     @cancellable

synapse/storage/databases/main/stats.py

@@ -161,7 +161,7 @@ class StatsStore(StateDeltasStore):
                     LIMIT ?
                 """
             txn.execute(sql, (last_user_id, batch_size))
-            return [r for r, in txn]
+            return [r for (r,) in txn]
 
         users_to_work_on = await self.db_pool.runInteraction(
             "_populate_stats_process_users", _get_next_batch
@@ -207,7 +207,7 @@ class StatsStore(StateDeltasStore):
                     LIMIT ?
                 """
             txn.execute(sql, (last_room_id, batch_size))
-            return [r for r, in txn]
+            return [r for (r,) in txn]
 
         rooms_to_work_on = await self.db_pool.runInteraction(
             "populate_stats_rooms_get_batch", _get_next_batch
@@ -751,9 +751,7 @@ class StatsStore(StateDeltasStore):
                 LEFT JOIN profiles AS p ON lmr.user_id = p.full_user_id
                 {}
                 GROUP BY lmr.user_id, displayname
-            """.format(
+            """.format(where_clause)
-                where_clause
-            )
 
             # SQLite does not support SELECT COUNT(*) OVER()
             sql = """

synapse/storage/databases/main/stream.py

@@ -21,7 +21,7 @@
 #
 #
 
-""" This module is responsible for getting events from the DB for pagination
+"""This module is responsible for getting events from the DB for pagination
 and event streaming.
 
 The order it returns events in depend on whether we are streaming forwards or
@@ -1122,9 +1122,7 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore):
                     AND e.stream_ordering > ? AND e.stream_ordering <= ?
                     %s
                 ORDER BY e.stream_ordering ASC
-            """ % (
+            """ % (ignore_room_clause,)
-                ignore_room_clause,
-            )
 
             txn.execute(sql, args)
 

synapse/storage/databases/main/user_directory.py

@@ -224,9 +224,7 @@ class UserDirectoryBackgroundUpdateStore(StateDeltasStore):
                 SELECT room_id, events FROM %s
                 ORDER BY events DESC
                 LIMIT 250
-            """ % (
+            """ % (TEMP_TABLE + "_rooms",)
-                TEMP_TABLE + "_rooms",
-            )
             txn.execute(sql)
             rooms_to_work_on = cast(List[Tuple[str, int]], txn.fetchall())
 

synapse/storage/databases/state/store.py

@@ -767,7 +767,7 @@ class StateGroupDataStore(StateBackgroundUpdateStore, SQLBaseStore):
 
         remaining_state_groups = {
             state_group
-            for state_group, in rows
+            for (state_group,) in rows
             if state_group not in state_groups_to_delete
         }
 

synapse/storage/prepare_database.py

@@ -607,7 +607,7 @@ def _apply_module_schema_files(
         "SELECT file FROM applied_module_schemas WHERE module_name = ?",
         (modname,),
     )
-    applied_deltas = {d for d, in cur}
+    applied_deltas = {d for (d,) in cur}
     for name, stream in names_and_streams:
         if name in applied_deltas:
             continue
@@ -710,7 +710,7 @@ def _get_or_create_schema_state(
         "SELECT file FROM applied_schema_deltas WHERE version >= ?",
         (current_version,),
     )
-    applied_deltas = tuple(d for d, in txn)
+    applied_deltas = tuple(d for (d,) in txn)
 
     return _SchemaState(
         current_version=current_version,

synapse/storage/schema/main/delta/56/unique_user_filter_index.py

@@ -41,8 +41,6 @@ def run_create(cur: LoggingTransaction, database_engine: BaseDatabaseEngine) ->
                 (user_id, filter_id);
             DROP TABLE user_filters;
             ALTER TABLE user_filters_migration RENAME TO user_filters;
-        """ % (
+        """ % (select_clause,)
-        select_clause,
-    )
 
     execute_statements_from_stream(cur, StringIO(sql))

synapse/storage/schema/main/delta/61/03recreate_min_depth.py

@@ -23,6 +23,7 @@
 This migration handles the process of changing the type of `room_depth.min_depth` to
 a BIGINT.
 """
+
 from synapse.storage.database import LoggingTransaction
 from synapse.storage.engines import BaseDatabaseEngine, PostgresEngine
 

synapse/storage/schema/main/delta/68/05partial_state_rooms_triggers.py

@@ -25,6 +25,7 @@ This migration adds triggers to the partial_state_events tables to enforce uniqu
 
 Triggers cannot be expressed in .sql files, so we have to use a separate file.
 """
+
 from synapse.storage.database import LoggingTransaction
 from synapse.storage.engines import BaseDatabaseEngine, PostgresEngine, Sqlite3Engine
 

synapse/storage/schema/main/delta/72/07force_update_current_state_events_membership.py

@@ -26,6 +26,7 @@ for its completion can be removed.
 
 Note the background job must still remain defined in the database class.
 """
+
 from synapse.config.homeserver import HomeServerConfig
 from synapse.storage.database import LoggingTransaction
 from synapse.storage.engines import BaseDatabaseEngine