diff --git a/corporate/tests/test_stripe.py b/corporate/tests/test_stripe.py
index 321d9ef4f5..32a6dc250c 100644
--- a/corporate/tests/test_stripe.py
+++ b/corporate/tests/test_stripe.py
@@ -3320,14 +3320,14 @@ class StripeTest(StripeTestCase):
         )
         [invoice, _] = stripe.Invoice.list(customer=stripe_customer.id)
         invoice_params = {
-            "amount_due": (8000 * 150 + 8000 * 50),
+            "amount_due": 8000 * 150 + 8000 * 50,
             "amount_paid": 0,
             "attempt_count": 0,
             "auto_advance": True,
             "collection_method": "send_invoice",
             "statement_descriptor": "Zulip Cloud Standard",
             "status": "open",
-            "total": (8000 * 150 + 8000 * 50),
+            "total": 8000 * 150 + 8000 * 50,
         }
         for key, value in invoice_params.items():
             self.assertEqual(invoice.get(key), value)
@@ -4833,7 +4833,7 @@ class InvoiceTest(StripeTestCase):
                 "start": datetime_to_timestamp(self.now + timedelta(days=366)),
                 "end": datetime_to_timestamp(self.now + timedelta(days=2 * 365 + 1)),
             },
-            "quantity": (self.seat_count + 1),
+            "quantity": self.seat_count + 1,
         }
         for key, value in line_item_params.items():
             self.assertEqual(item1.get(key), value)
diff --git a/tools/lib/capitalization.py b/tools/lib/capitalization.py
index bf9c5de5bd..90679140e1 100644
--- a/tools/lib/capitalization.py
+++ b/tools/lib/capitalization.py
@@ -70,7 +70,7 @@ IGNORED_PHRASES = [
     r"streamname",
     r"user@example\.com",
     # Fragments of larger strings
-    (r"your subscriptions on your Streams page"),
+    r"your subscriptions on your Streams page",
     r"Add global time<br />Everyone sees global times in their own time zone\.",
     r"user",
     r"an unknown operating system",
diff --git a/tools/lib/html_branches.py b/tools/lib/html_branches.py
index 434378e570..1bc1528ca3 100644
--- a/tools/lib/html_branches.py
+++ b/tools/lib/html_branches.py
@@ -75,7 +75,7 @@ def split_for_id_and_class(element: str) -> List[str]:
 
 
 def build_id_dict(templates: List[str]) -> Dict[str, List[str]]:
-    template_id_dict: (Dict[str, List[str]]) = defaultdict(list)
+    template_id_dict: Dict[str, List[str]] = defaultdict(list)
 
     for fn in templates:
         with open(fn) as f:
diff --git a/tools/test-backend b/tools/test-backend
index 415a439135..b45c8d2495 100755
--- a/tools/test-backend
+++ b/tools/test-backend
@@ -253,17 +253,17 @@ def main() -> None:
     parser.add_argument(
         "--include-webhooks",
         action="store_true",
-        help=("Include webhook tests.  By default, they are skipped for performance."),
+        help="Include webhook tests.  By default, they are skipped for performance.",
     )
     parser.add_argument(
         "--include-transaction-tests",
         action="store_true",
-        help=("Include transaction tests.  By default, they are skipped for performance."),
+        help="Include transaction tests.  By default, they are skipped for performance.",
     )
     parser.add_argument(
         "--generate-stripe-fixtures",
         action="store_true",
-        help=("Generate Stripe test fixtures by making requests to Stripe test network"),
+        help="Generate Stripe test fixtures by making requests to Stripe test network",
     )
     parser.add_argument("args", nargs="*")
     parser.add_argument(
diff --git a/zerver/actions/message_edit.py b/zerver/actions/message_edit.py
index c75298f087..801351b615 100644
--- a/zerver/actions/message_edit.py
+++ b/zerver/actions/message_edit.py
@@ -247,9 +247,7 @@ def get_mentions_for_message_updates(message_id: int) -> Set[int]:
             message=message_id,
             flags=~UserMessage.flags.historical,
         )
-        .filter(
-            Q(flags__andnz=(UserMessage.flags.mentioned | UserMessage.flags.wildcard_mentioned))
-        )
+        .filter(Q(flags__andnz=UserMessage.flags.mentioned | UserMessage.flags.wildcard_mentioned))
         .values_list("user_profile_id", flat=True)
     )
     return set(mentioned_user_ids)
diff --git a/zerver/actions/message_send.py b/zerver/actions/message_send.py
index efb2ec4d19..ff92777b7a 100644
--- a/zerver/actions/message_send.py
+++ b/zerver/actions/message_send.py
@@ -515,7 +515,7 @@ def get_service_bot_events(
         if is_stream and user_profile_id in mentioned_user_ids:
             trigger = "mention"
         # Direct message triggers for personal and huddle messages
-        elif (not is_stream) and (user_profile_id in active_user_ids):
+        elif not is_stream and user_profile_id in active_user_ids:
             trigger = NotificationTriggers.DIRECT_MESSAGE
         else:
             return
@@ -966,7 +966,7 @@ def do_send_messages(
             UserMessageNotificationsData.from_user_id_sets(
                 user_id=user_id,
                 flags=user_flags.get(user_id, []),
-                private_message=(message_type == "private"),
+                private_message=message_type == "private",
                 disable_external_notifications=send_request.disable_external_notifications,
                 online_push_user_ids=send_request.online_push_user_ids,
                 dm_mention_push_disabled_user_ids=send_request.dm_mention_push_disabled_user_ids,
diff --git a/zerver/lib/ccache.py b/zerver/lib/ccache.py
index 611844f5d0..544e1b8e61 100644
--- a/zerver/lib/ccache.py
+++ b/zerver/lib/ccache.py
@@ -132,11 +132,9 @@ def der_encode_ticket(tkt: Dict[str, Any]) -> bytes:
                 der_encode_sequence(  # EncryptedData
                     [
                         der_encode_int32(tkt["encPart"]["etype"]),
-                        (
-                            der_encode_uint32(tkt["encPart"]["kvno"])
-                            if "kvno" in tkt["encPart"]
-                            else None
-                        ),
+                        der_encode_uint32(tkt["encPart"]["kvno"])
+                        if "kvno" in tkt["encPart"]
+                        else None,
                         der_encode_octet_string(base64.b64decode(tkt["encPart"]["cipher"])),
                     ]
                 ),
diff --git a/zerver/lib/markdown/api_arguments_table_generator.py b/zerver/lib/markdown/api_arguments_table_generator.py
index 2fe6bf3ec4..4a681898c0 100644
--- a/zerver/lib/markdown/api_arguments_table_generator.py
+++ b/zerver/lib/markdown/api_arguments_table_generator.py
@@ -183,7 +183,7 @@ class APIArgumentsTablePreprocessor(Preprocessor):
                     required=required_block,
                     deprecated=deprecated_block,
                     description=md_engine.convert(description),
-                    type=(data_type),
+                    type=data_type,
                     object_details=object_block,
                 )
             )
diff --git a/zerver/lib/markdown/fenced_code.py b/zerver/lib/markdown/fenced_code.py
index 593a191e40..e0d69836d7 100644
--- a/zerver/lib/markdown/fenced_code.py
+++ b/zerver/lib/markdown/fenced_code.py
@@ -465,7 +465,7 @@ class FencedBlockPreprocessor(Preprocessor):
                 css_class=self.codehilite_conf["css_class"][0],
                 style=self.codehilite_conf["pygments_style"][0],
                 use_pygments=self.codehilite_conf["use_pygments"][0],
-                lang=(lang or None),
+                lang=lang or None,
                 noclasses=self.codehilite_conf["noclasses"][0],
                 # By default, the Pygments PHP lexers won't highlight
                 # code without a `<?php` marker at the start of the
diff --git a/zerver/lib/notification_data.py b/zerver/lib/notification_data.py
index eaaae91b3a..71560dea02 100644
--- a/zerver/lib/notification_data.py
+++ b/zerver/lib/notification_data.py
@@ -158,16 +158,16 @@ class UserMessageNotificationsData:
             mention_push_notify=mention_push_notify,
             topic_wildcard_mention_push_notify=topic_wildcard_mention_push_notify,
             stream_wildcard_mention_push_notify=stream_wildcard_mention_push_notify,
-            online_push_enabled=(user_id in online_push_user_ids),
-            stream_push_notify=(user_id in stream_push_user_ids),
-            stream_email_notify=(user_id in stream_email_user_ids),
-            followed_topic_push_notify=(user_id in followed_topic_push_user_ids),
-            followed_topic_email_notify=(user_id in followed_topic_email_user_ids),
+            online_push_enabled=user_id in online_push_user_ids,
+            stream_push_notify=user_id in stream_push_user_ids,
+            stream_email_notify=user_id in stream_email_user_ids,
+            followed_topic_push_notify=user_id in followed_topic_push_user_ids,
+            followed_topic_email_notify=user_id in followed_topic_email_user_ids,
             topic_wildcard_mention_in_followed_topic_push_notify=topic_wildcard_mention_in_followed_topic_push_notify,
             topic_wildcard_mention_in_followed_topic_email_notify=topic_wildcard_mention_in_followed_topic_email_notify,
             stream_wildcard_mention_in_followed_topic_push_notify=stream_wildcard_mention_in_followed_topic_push_notify,
             stream_wildcard_mention_in_followed_topic_email_notify=stream_wildcard_mention_in_followed_topic_email_notify,
-            sender_is_muted=(user_id in muted_sender_user_ids),
+            sender_is_muted=user_id in muted_sender_user_ids,
             disable_external_notifications=disable_external_notifications,
         )
 
diff --git a/zerver/lib/test_classes.py b/zerver/lib/test_classes.py
index 1b172a701d..f496ca16b0 100644
--- a/zerver/lib/test_classes.py
+++ b/zerver/lib/test_classes.py
@@ -1671,12 +1671,12 @@ Output:
 
         do_set_realm_property(realm, "waiting_period_threshold", 1000, acting_user=None)
         new_member_user.date_joined = timezone_now() - timedelta(
-            days=(realm.waiting_period_threshold - 1)
+            days=realm.waiting_period_threshold - 1
         )
         new_member_user.save()
 
         member_user.date_joined = timezone_now() - timedelta(
-            days=(realm.waiting_period_threshold + 1)
+            days=realm.waiting_period_threshold + 1
         )
         member_user.save()
 
diff --git a/zerver/tests/test_external.py b/zerver/tests/test_external.py
index 902b29d985..ecd90118b8 100644
--- a/zerver/tests/test_external.py
+++ b/zerver/tests/test_external.py
@@ -166,7 +166,7 @@ class RateLimitTests(ZulipTestCase):
 
         start_time = time.time()
         for i in range(6):
-            with mock.patch("time.time", return_value=(start_time + i * 0.1)):
+            with mock.patch("time.time", return_value=start_time + i * 0.1):
                 result = request_func()
             if i < 5:
                 self.assertNotEqual(result.status_code, 429)
@@ -176,7 +176,7 @@ class RateLimitTests(ZulipTestCase):
         # We simulate waiting a second here, rather than force-clearing our history,
         # to make sure the rate-limiting code automatically forgives a user
         # after some time has passed.
-        with mock.patch("time.time", return_value=(start_time + 1.01)):
+        with mock.patch("time.time", return_value=start_time + 1.01):
             result = request_func()
 
             self.assertNotEqual(result.status_code, 429)
diff --git a/zerver/tests/test_import_export.py b/zerver/tests/test_import_export.py
index 9ae63c0df8..5636c1c70a 100644
--- a/zerver/tests/test_import_export.py
+++ b/zerver/tests/test_import_export.py
@@ -372,7 +372,7 @@ class RealmImportExportTest(ExportFile):
         self.export_realm(realm, public_only=True)
 
         # The attachment row shouldn't have been exported:
-        self.assertEqual((read_json("attachment.json")["zerver_attachment"]), [])
+        self.assertEqual(read_json("attachment.json")["zerver_attachment"], [])
 
         # Aside of the attachment row, we also need to verify that the file itself
         # isn't included.
diff --git a/zerver/tests/test_invite.py b/zerver/tests/test_invite.py
index cfdbb33a8f..f5dadc3361 100644
--- a/zerver/tests/test_invite.py
+++ b/zerver/tests/test_invite.py
@@ -895,7 +895,7 @@ class InviteUserTest(InviteUserBase):
 
         hamlet = self.example_user("hamlet")
         hamlet.date_joined = timezone_now() - datetime.timedelta(
-            days=(realm.waiting_period_threshold - 1)
+            days=realm.waiting_period_threshold - 1
         )
 
         email = "issac-test@zulip.com"
diff --git a/zerver/tests/test_middleware.py b/zerver/tests/test_middleware.py
index 9ac7c60cf0..6182ba3806 100644
--- a/zerver/tests/test_middleware.py
+++ b/zerver/tests/test_middleware.py
@@ -133,7 +133,7 @@ class OpenGraphTest(ZulipTestCase):
         self.check_title_and_description(
             "/help/",
             "Zulip help center",
-            [("Welcome to the Zulip")],
+            ["Welcome to the Zulip"],
             [],
         )
 
diff --git a/zerver/tests/test_queue_worker.py b/zerver/tests/test_queue_worker.py
index 4472ccfa36..8fd98c878c 100644
--- a/zerver/tests/test_queue_worker.py
+++ b/zerver/tests/test_queue_worker.py
@@ -518,7 +518,7 @@ class WorkerTest(ZulipTestCase):
                     self.assertEqual(mock_mirror_email.call_count, 3)
 
             # After some time passes, emails get accepted again:
-            with patch("time.time", return_value=(start_time + 11.0)):
+            with patch("time.time", return_value=start_time + 11.0):
                 fake_client.enqueue("email_mirror", data[0])
                 worker.start()
                 self.assertEqual(mock_mirror_email.call_count, 4)
diff --git a/zerver/tests/test_rate_limiter.py b/zerver/tests/test_rate_limiter.py
index f365c120df..ebcc1f94f9 100644
--- a/zerver/tests/test_rate_limiter.py
+++ b/zerver/tests/test_rate_limiter.py
@@ -98,28 +98,28 @@ class RateLimiterBackendBase(ZulipTestCase, ABC):
 
         start_time = time.time()
         for i in range(3):
-            with mock.patch("time.time", return_value=(start_time + i * 0.1)):
+            with mock.patch("time.time", return_value=start_time + i * 0.1):
                 self.make_request(obj, expect_ratelimited=False)
 
-        with mock.patch("time.time", return_value=(start_time + 0.4)):
+        with mock.patch("time.time", return_value=start_time + 0.4):
             self.make_request(obj, expect_ratelimited=True)
 
-        with mock.patch("time.time", return_value=(start_time + 2.01)):
+        with mock.patch("time.time", return_value=start_time + 2.01):
             self.make_request(obj, expect_ratelimited=False)
 
     def test_clear_history(self) -> None:
         obj = self.create_object("test", [(2, 3)])
         start_time = time.time()
         for i in range(3):
-            with mock.patch("time.time", return_value=(start_time + i * 0.1)):
+            with mock.patch("time.time", return_value=start_time + i * 0.1):
                 self.make_request(obj, expect_ratelimited=False)
-        with mock.patch("time.time", return_value=(start_time + 0.4)):
+        with mock.patch("time.time", return_value=start_time + 0.4):
             self.make_request(obj, expect_ratelimited=True)
 
         obj.clear_history()
         self.requests_record[obj.key()] = []
         for i in range(3):
-            with mock.patch("time.time", return_value=(start_time + i * 0.1)):
+            with mock.patch("time.time", return_value=start_time + i * 0.1):
                 self.make_request(obj, expect_ratelimited=False)
 
     def test_block_unblock_access(self) -> None:
@@ -127,11 +127,11 @@ class RateLimiterBackendBase(ZulipTestCase, ABC):
         start_time = time.time()
 
         obj.block_access(1)
-        with mock.patch("time.time", return_value=(start_time)):
+        with mock.patch("time.time", return_value=start_time):
             self.make_request(obj, expect_ratelimited=True, verify_api_calls_left=False)
 
         obj.unblock_access()
-        with mock.patch("time.time", return_value=(start_time)):
+        with mock.patch("time.time", return_value=start_time):
             self.make_request(obj, expect_ratelimited=False, verify_api_calls_left=False)
 
     def test_api_calls_left(self) -> None:
@@ -139,15 +139,15 @@ class RateLimiterBackendBase(ZulipTestCase, ABC):
         start_time = time.time()
 
         # Check the edge case when no requests have been made yet.
-        with mock.patch("time.time", return_value=(start_time)):
+        with mock.patch("time.time", return_value=start_time):
             self.verify_api_calls_left(obj)
 
-        with mock.patch("time.time", return_value=(start_time)):
+        with mock.patch("time.time", return_value=start_time):
             self.make_request(obj)
 
         # Check the correct default values again, after the reset has happened on the first rule,
         # but not the other.
-        with mock.patch("time.time", return_value=(start_time + 2.1)):
+        with mock.patch("time.time", return_value=start_time + 2.1):
             self.make_request(obj)
 
 
@@ -158,7 +158,7 @@ class RedisRateLimiterBackendTest(RateLimiterBackendBase):
         self, history: List[float], max_window: int, max_calls: int, now: float
     ) -> Tuple[int, float]:
         latest_timestamp = history[-1]
-        relevant_requests = [t for t in history if (t >= now - max_window)]
+        relevant_requests = [t for t in history if t >= now - max_window]
         relevant_requests_amount = len(relevant_requests)
 
         return max_calls - relevant_requests_amount, latest_timestamp + max_window - now
@@ -211,10 +211,10 @@ class TornadoInMemoryRateLimiterBackendTest(RateLimiterBackendBase):
         start_time = time.time()
 
         obj.block_access(1)
-        with mock.patch("time.time", return_value=(start_time)):
+        with mock.patch("time.time", return_value=start_time):
             self.make_request(obj, expect_ratelimited=True, verify_api_calls_left=False)
 
-        with mock.patch("time.time", return_value=(start_time + 1.01)):
+        with mock.patch("time.time", return_value=start_time + 1.01):
             self.make_request(obj, expect_ratelimited=False, verify_api_calls_left=False)
 
 
diff --git a/zerver/tests/test_user_groups.py b/zerver/tests/test_user_groups.py
index 4c45049ad1..2ad5cecd23 100644
--- a/zerver/tests/test_user_groups.py
+++ b/zerver/tests/test_user_groups.py
@@ -1281,9 +1281,7 @@ class UserGroupAPITestCase(UserGroupTestCase):
         result = self.client_post(f"/json/user_groups/{leadership_group.id}/subgroups", info=params)
         self.assert_json_error(
             result,
-            (
-                "User group {user_group_id} is already a subgroup of one of the passed subgroups."
-            ).format(user_group_id=leadership_group.id),
+            f"User group {leadership_group.id} is already a subgroup of one of the passed subgroups.",
         )
         self.assert_subgroup_membership(support_group, [leadership_group])
 
@@ -1296,9 +1294,7 @@ class UserGroupAPITestCase(UserGroupTestCase):
         result = self.client_post(f"/json/user_groups/{leadership_group.id}/subgroups", info=params)
         self.assert_json_error(
             result,
-            (
-                "User group {user_group_id} is already a subgroup of one of the passed subgroups."
-            ).format(user_group_id=leadership_group.id),
+            f"User group {leadership_group.id} is already a subgroup of one of the passed subgroups.",
         )
         self.assert_subgroup_membership(test_group, [support_group])
 
diff --git a/zerver/tornado/event_queue.py b/zerver/tornado/event_queue.py
index aa26d5d1c3..6369189af2 100644
--- a/zerver/tornado/event_queue.py
+++ b/zerver/tornado/event_queue.py
@@ -1340,7 +1340,7 @@ def process_message_update_event(
             user_notifications_data = UserMessageNotificationsData.from_user_id_sets(
                 user_id=user_profile_id,
                 flags=flags,
-                private_message=(stream_name is None),
+                private_message=stream_name is None,
                 disable_external_notifications=disable_external_notifications,
                 online_push_user_ids=online_push_user_ids,
                 dm_mention_push_disabled_user_ids=dm_mention_push_disabled_user_ids,
@@ -1361,9 +1361,9 @@ def process_message_update_event(
                 user_notifications_data=user_notifications_data,
                 message_id=message_id,
                 acting_user_id=acting_user_id,
-                private_message=(stream_name is None),
-                presence_idle=(user_profile_id in presence_idle_user_ids),
-                prior_mentioned=(user_profile_id in prior_mention_user_ids),
+                private_message=stream_name is None,
+                presence_idle=user_profile_id in presence_idle_user_ids,
+                prior_mentioned=user_profile_id in prior_mention_user_ids,
             )
 
         for client in get_client_descriptors_for_user(user_profile_id):
diff --git a/zerver/views/realm.py b/zerver/views/realm.py
index c87747f381..560f49987c 100644
--- a/zerver/views/realm.py
+++ b/zerver/views/realm.py
@@ -535,7 +535,7 @@ def update_realm_user_settings_defaults(
         check_settings_values(notification_sound, email_notifications_batching_period_seconds)
 
     realm_user_default = RealmUserDefault.objects.get(realm=user_profile.realm)
-    request_settings = {k: v for k, v in locals().items() if (k in RealmUserDefault.property_types)}
+    request_settings = {k: v for k, v in locals().items() if k in RealmUserDefault.property_types}
     for k, v in request_settings.items():
         if v is not None and getattr(realm_user_default, k) != v:
             do_set_realm_user_default_setting(realm_user_default, k, v, acting_user=user_profile)
diff --git a/zerver/views/registration.py b/zerver/views/registration.py
index 62b4b9d648..203731c2e5 100644
--- a/zerver/views/registration.py
+++ b/zerver/views/registration.py
@@ -742,7 +742,7 @@ def send_confirm_registration_email(
         from_address=FromAddress.tokenized_no_reply_address(),
         language=get_language() if request is not None else None,
         context={
-            "create_realm": (realm is None),
+            "create_realm": realm is None,
             "activate_url": activation_url,
             "corporate_enabled": settings.CORPORATE_ENABLED,
         },
diff --git a/zerver/views/sentry.py b/zerver/views/sentry.py
index bcafa216f4..63c4970fb2 100644
--- a/zerver/views/sentry.py
+++ b/zerver/views/sentry.py
@@ -54,7 +54,7 @@ def sentry_tunnel(
             item_header = orjson.loads(item_header_line.decode("utf-8"))
             length = item_header.get("length")
             if length is None:
-                item_body, envelope_items = ([*rest.split(b"\n", 1), b""])[:2]
+                item_body, envelope_items = [*rest.split(b"\n", 1), b""][:2]
             else:
                 item_body, envelope_items = rest[0:length], rest[length:]
             if item_header.get("type") in ("transaction", "event"):
diff --git a/zerver/webhooks/librato/view.py b/zerver/webhooks/librato/view.py
index 9caa9b126e..f0da7175d0 100644
--- a/zerver/webhooks/librato/view.py
+++ b/zerver/webhooks/librato/view.py
@@ -42,7 +42,7 @@ class LibratoWebhookParser:
 
     def parse_violation(self, violation: Dict[str, Any]) -> Tuple[str, str]:
         metric_name = violation["metric"]
-        recorded_at = datetime.fromtimestamp((violation["recorded_at"]), tz=timezone.utc).strftime(
+        recorded_at = datetime.fromtimestamp(violation["recorded_at"], tz=timezone.utc).strftime(
             "%Y-%m-%d %H:%M:%S"
         )
         return metric_name, recorded_at
@@ -98,7 +98,7 @@ class LibratoWebhookHandler(LibratoWebhookParser):
     def handle_alert_clear_message(self) -> str:
         alert_clear_template = "Alert [alert_name]({alert_url}) has cleared at {trigger_time} UTC!"
         trigger_time = datetime.fromtimestamp(
-            (self.payload["trigger_time"]), tz=timezone.utc
+            self.payload["trigger_time"], tz=timezone.utc
         ).strftime("%Y-%m-%d %H:%M:%S")
         alert_id, alert_name, alert_url, alert_runbook_url = self.parse_alert()
         content = alert_clear_template.format(
diff --git a/zilencer/management/commands/populate_db.py b/zilencer/management/commands/populate_db.py
index c3b358d778..3a8e472124 100644
--- a/zilencer/management/commands/populate_db.py
+++ b/zilencer/management/commands/populate_db.py
@@ -670,7 +670,7 @@ class Command(BaseCommand):
 
             subscriptions_to_add: List[Subscription] = []
             event_time = timezone_now()
-            all_subscription_logs: (List[RealmAuditLog]) = []
+            all_subscription_logs: List[RealmAuditLog] = []
 
             i = 0
             for profile, recipient in subscriptions_list: