diff --git a/synapse/config/_base.py b/synapse/config/_base.py
index 1417487427..ad5ab6ad62 100644
--- a/synapse/config/_base.py
+++ b/synapse/config/_base.py
@@ -88,7 +88,7 @@ def path_exists(file_path):
return False
-class Config(object):
+class Config:
"""
A configuration section, containing configuration keys and values.
@@ -283,7 +283,7 @@ def _create_mxc_to_http_filter(public_baseurl: str) -> Callable:
return mxc_to_http_filter
-class RootConfig(object):
+class RootConfig:
"""
Holder of an application's configuration.
diff --git a/synapse/config/cache.py b/synapse/config/cache.py
index aff5b21ab2..8e03f14005 100644
--- a/synapse/config/cache.py
+++ b/synapse/config/cache.py
@@ -33,7 +33,7 @@ _DEFAULT_FACTOR_SIZE = 0.5
_DEFAULT_EVENT_CACHE_SIZE = "10K"
-class CacheProperties(object):
+class CacheProperties:
def __init__(self):
# The default factor size for all caches
self.default_factor_size = float(
diff --git a/synapse/config/key.py b/synapse/config/key.py
index b529ea5da0..de964dff13 100644
--- a/synapse/config/key.py
+++ b/synapse/config/key.py
@@ -82,7 +82,7 @@ logger = logging.getLogger(__name__)
@attr.s
-class TrustedKeyServer(object):
+class TrustedKeyServer:
# string: name of the server.
server_name = attr.ib()
diff --git a/synapse/config/metrics.py b/synapse/config/metrics.py
index 6aad0d37c0..dfd27e1523 100644
--- a/synapse/config/metrics.py
+++ b/synapse/config/metrics.py
@@ -22,7 +22,7 @@ from ._base import Config, ConfigError
@attr.s
-class MetricsFlags(object):
+class MetricsFlags:
known_servers = attr.ib(default=False, validator=attr.validators.instance_of(bool))
@classmethod
diff --git a/synapse/config/ratelimiting.py b/synapse/config/ratelimiting.py
index b2c78ac40c..14b8836197 100644
--- a/synapse/config/ratelimiting.py
+++ b/synapse/config/ratelimiting.py
@@ -17,7 +17,7 @@ from typing import Dict
from ._base import Config
-class RateLimitConfig(object):
+class RateLimitConfig:
def __init__(
self,
config: Dict[str, float],
@@ -27,7 +27,7 @@ class RateLimitConfig(object):
self.burst_count = config.get("burst_count", defaults["burst_count"])
-class FederationRateLimitConfig(object):
+class FederationRateLimitConfig:
_items_and_default = {
"window_size": 1000,
"sleep_limit": 10,
diff --git a/synapse/config/room.py b/synapse/config/room.py
index 52cf0b62fc..692d7a1936 100644
--- a/synapse/config/room.py
+++ b/synapse/config/room.py
@@ -22,7 +22,7 @@ from ._base import Config, ConfigError
logger = logging.Logger(__name__)
-class RoomDefaultEncryptionTypes(object):
+class RoomDefaultEncryptionTypes:
"""Possible values for the encryption_enabled_by_default_for_room_type config option"""
ALL = "all"
diff --git a/synapse/config/room_directory.py b/synapse/config/room_directory.py
index 7ac7699676..6de1f9d103 100644
--- a/synapse/config/room_directory.py
+++ b/synapse/config/room_directory.py
@@ -149,7 +149,7 @@ class RoomDirectoryConfig(Config):
return False
-class _RoomDirectoryRule(object):
+class _RoomDirectoryRule:
"""Helper class to test whether a room directory action is allowed, like
creating an alias or publishing a room.
"""
diff --git a/synapse/config/server.py b/synapse/config/server.py
index 526a90b26a..e85c6a0840 100644
--- a/synapse/config/server.py
+++ b/synapse/config/server.py
@@ -424,7 +424,7 @@ class ServerConfig(Config):
self.gc_thresholds = read_gc_thresholds(config.get("gc_thresholds", None))
@attr.s
- class LimitRemoteRoomsConfig(object):
+ class LimitRemoteRoomsConfig:
enabled = attr.ib(
validator=attr.validators.instance_of(bool), default=False
)
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