3 files changed, 7 insertions, 7 deletions
diff --git a/synapse/http/federation/matrix_federation_agent.py b/synapse/http/federation/matrix_federation_agent.py
index 782d39d4ca..83d6196d4a 100644
--- a/synapse/http/federation/matrix_federation_agent.py
+++ b/synapse/http/federation/matrix_federation_agent.py
@@ -36,7 +36,7 @@ logger = logging.getLogger(__name__)
 
 
 @implementer(IAgent)
-class MatrixFederationAgent(object):
+class MatrixFederationAgent:
     """An Agent-like thing which provides a `request` method which correctly
     handles resolving matrix server names when using matrix://. Handles standard
     https URIs as normal.
@@ -175,7 +175,7 @@ class MatrixFederationAgent(object):
 
 
 @implementer(IAgentEndpointFactory)
-class MatrixHostnameEndpointFactory(object):
+class MatrixHostnameEndpointFactory:
     """Factory for MatrixHostnameEndpoint for parsing to an Agent.
     """
 
@@ -198,7 +198,7 @@ class MatrixHostnameEndpointFactory(object):
 
 
 @implementer(IStreamClientEndpoint)
-class MatrixHostnameEndpoint(object):
+class MatrixHostnameEndpoint:
     """An endpoint that resolves matrix:// URLs using Matrix server name
     resolution (i.e. via SRV). Does not check for well-known delegation.
 
diff --git a/synapse/http/federation/srv_resolver.py b/synapse/http/federation/srv_resolver.py
index 2ede90a9b1..d9620032d2 100644
--- a/synapse/http/federation/srv_resolver.py
+++ b/synapse/http/federation/srv_resolver.py
@@ -33,7 +33,7 @@ SERVER_CACHE = {}
 
 
 @attr.s(slots=True, frozen=True)
-class Server(object):
+class Server:
     """
     Our record of an individual server which can be tried to reach a destination.
 
@@ -96,7 +96,7 @@ def _sort_server_list(server_list):
     return results
 
 
-class SrvResolver(object):
+class SrvResolver:
     """Interface to the dns client to do SRV lookups, with result caching.
 
     The default resolver in twisted.names doesn't do any caching (it has a CacheResolver,
diff --git a/synapse/http/federation/well_known_resolver.py b/synapse/http/federation/well_known_resolver.py
index cdb6bec56e..e6f067ca29 100644
--- a/synapse/http/federation/well_known_resolver.py
+++ b/synapse/http/federation/well_known_resolver.py
@@ -71,11 +71,11 @@ _had_valid_well_known_cache = TTLCache("had-valid-well-known")
 
 
 @attr.s(slots=True, frozen=True)
-class WellKnownLookupResult(object):
+class WellKnownLookupResult:
     delegated_server = attr.ib()
 
 
-class WellKnownResolver(object):
+class WellKnownResolver:
     """Handles well-known lookups for matrix servers.
     """