7 files changed, 32 insertions, 33 deletions
diff --git a/synapse/handlers/cas.py b/synapse/handlers/cas.py
index b681d208bc..0325f86e20 100644
--- a/synapse/handlers/cas.py
+++ b/synapse/handlers/cas.py
@@ -40,7 +40,7 @@ class CasError(Exception):
 
     def __str__(self):
         if self.error_description:
-            return "{}: {}".format(self.error, self.error_description)
+            return f"{self.error}: {self.error_description}"
         return self.error
 
 
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index 5c4463583e..cf389be3e4 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -735,7 +735,7 @@ class FederationHandler(BaseHandler):
         # we need to make sure we re-load from the database to get the rejected
         # state correct.
         fetched_events.update(
-            (await self.store.get_events(missing_desired_events, allow_rejected=True))
+            await self.store.get_events(missing_desired_events, allow_rejected=True)
         )
 
         # check for events which were in the wrong room.
diff --git a/synapse/handlers/identity.py b/synapse/handlers/identity.py
index 33d16fbf9c..0961dec5ab 100644
--- a/synapse/handlers/identity.py
+++ b/synapse/handlers/identity.py
@@ -302,7 +302,7 @@ class IdentityHandler(BaseHandler):
             )
 
         url = "https://%s/_matrix/identity/api/v1/3pid/unbind" % (id_server,)
-        url_bytes = "/_matrix/identity/api/v1/3pid/unbind".encode("ascii")
+        url_bytes = b"/_matrix/identity/api/v1/3pid/unbind"
 
         content = {
             "mxid": mxid,
@@ -695,7 +695,7 @@ class IdentityHandler(BaseHandler):
                 return data["mxid"]
         except RequestTimedOutError:
             raise SynapseError(500, "Timed out contacting identity server")
-        except IOError as e:
+        except OSError as e:
             logger.warning("Error from v1 identity server lookup: %s" % (e,))
 
         return None
diff --git a/synapse/handlers/oidc.py b/synapse/handlers/oidc.py
index a330c48fa7..eca8f16040 100644
--- a/synapse/handlers/oidc.py
+++ b/synapse/handlers/oidc.py
@@ -72,26 +72,26 @@ _SESSION_COOKIES = [
     (b"oidc_session_no_samesite", b"HttpOnly"),
 ]
 
+
 #: A token exchanged from the token endpoint, as per RFC6749 sec 5.1. and
 #: OpenID.Core sec 3.1.3.3.
-Token = TypedDict(
-    "Token",
-    {
-        "access_token": str,
-        "token_type": str,
-        "id_token": Optional[str],
-        "refresh_token": Optional[str],
-        "expires_in": int,
-        "scope": Optional[str],
-    },
-)
+class Token(TypedDict):
+    access_token: str
+    token_type: str
+    id_token: Optional[str]
+    refresh_token: Optional[str]
+    expires_in: int
+    scope: Optional[str]
+
 
 #: A JWK, as per RFC7517 sec 4. The type could be more precise than that, but
 #: there is no real point of doing this in our case.
 JWK = Dict[str, str]
 
+
 #: A JWK Set, as per RFC7517 sec 5.
-JWKS = TypedDict("JWKS", {"keys": List[JWK]})
+class JWKS(TypedDict):
+    keys: List[JWK]
 
 
 class OidcHandler:
@@ -255,7 +255,7 @@ class OidcError(Exception):
 
     def __str__(self):
         if self.error_description:
-            return "{}: {}".format(self.error, self.error_description)
+            return f"{self.error}: {self.error_description}"
         return self.error
 
 
@@ -639,7 +639,7 @@ class OidcProvider:
             )
             logger.warning(description)
             # Body was still valid JSON. Might be useful to log it for debugging.
-            logger.warning("Code exchange response: {resp!r}".format(resp=resp))
+            logger.warning("Code exchange response: %r", resp)
             raise OidcError("server_error", description)
 
         return resp
@@ -1217,10 +1217,12 @@ class OidcSessionData:
     ui_auth_session_id = attr.ib(type=str)
 
 
-UserAttributeDict = TypedDict(
-    "UserAttributeDict",
-    {"localpart": Optional[str], "display_name": Optional[str], "emails": List[str]},
-)
+class UserAttributeDict(TypedDict):
+    localpart: Optional[str]
+    display_name: Optional[str]
+    emails: List[str]
+
+
 C = TypeVar("C")
 
 
diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py
index 056fe5e89f..8cf614136e 100644
--- a/synapse/handlers/register.py
+++ b/synapse/handlers/register.py
@@ -55,15 +55,12 @@ login_counter = Counter(
     ["guest", "auth_provider"],
 )
 
-LoginDict = TypedDict(
-    "LoginDict",
-    {
-        "device_id": str,
-        "access_token": str,
-        "valid_until_ms": Optional[int],
-        "refresh_token": Optional[str],
-    },
-)
+
+class LoginDict(TypedDict):
+    device_id: str
+    access_token: str
+    valid_until_ms: Optional[int]
+    refresh_token: Optional[str]
 
 
 class RegistrationHandler(BaseHandler):
diff --git a/synapse/handlers/saml.py b/synapse/handlers/saml.py
index 72f54c9403..e6e71e9729 100644
--- a/synapse/handlers/saml.py
+++ b/synapse/handlers/saml.py
@@ -372,7 +372,7 @@ class SamlHandler(BaseHandler):
 
 
 DOT_REPLACE_PATTERN = re.compile(
-    ("[^%s]" % (re.escape("".join(mxid_localpart_allowed_characters)),))
+    "[^%s]" % (re.escape("".join(mxid_localpart_allowed_characters)),)
 )
 
 
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index 722c4ae670..150a4f291e 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -1601,7 +1601,7 @@ class SyncHandler:
             logger.debug(
                 "Membership changes in %s: [%s]",
                 room_id,
-                ", ".join(("%s (%s)" % (e.event_id, e.membership) for e in events)),
+                ", ".join("%s (%s)" % (e.event_id, e.membership) for e in events),
             )
 
             non_joins = [e for e in events if e.membership != Membership.JOIN]