Update black, and run auto formatting over the codebase (#9381)

 - Update black version to the latest
 - Run black auto formatting over the codebase
    - Run autoformatting according to [`docs/code_style.md
`](https://github.com/matrix-org/synapse/blob/80d6dc9783aa80886a133756028984dbf8920168/docs/code_style.md)
 - Update `code_style.md` docs around installing black to use the correct version

4 files changed, 18 insertions, 6 deletions

diff --git a/synapse/rest/client/v1/login.py b/synapse/rest/client/v1/login.py

index 0fb9419e58..6e2fbedd99 100644
--- a/synapse/rest/client/v1/login.py
+++ b/synapse/rest/client/v1/login.py
@@ -310,7 +310,9 @@ class LoginRestServlet(RestServlet):
         except jwt.PyJWTError as e:
             # A JWT error occurred, return some info back to the client.
             raise LoginError(
-                403, "JWT validation failed: %s" % (str(e),), errcode=Codes.FORBIDDEN,
+                403,
+                "JWT validation failed: %s" % (str(e),),
+                errcode=Codes.FORBIDDEN,
             )
 
         user = payload.get("sub", None)
@@ -375,7 +377,9 @@ class SsoRedirectServlet(RestServlet):
             request, "redirectUrl", required=True, encoding=None
         )
         sso_url = await self._sso_handler.handle_redirect_request(
-            request, client_redirect_url, idp_id,
+            request,
+            client_redirect_url,
+            idp_id,
         )
         logger.info("Redirecting to %s", sso_url)
         request.redirect(sso_url)
diff --git a/synapse/rest/client/v1/profile.py b/synapse/rest/client/v1/profile.py

index 85a66458c5..717c5f2b10 100644
--- a/synapse/rest/client/v1/profile.py
+++ b/synapse/rest/client/v1/profile.py
@@ -60,7 +60,9 @@ class ProfileDisplaynameRestServlet(RestServlet):
             new_name = content["displayname"]
         except Exception:
             raise SynapseError(
-                code=400, msg="Unable to parse name", errcode=Codes.BAD_JSON,
+                code=400,
+                msg="Unable to parse name",
+                errcode=Codes.BAD_JSON,
             )
 
         await self.profile_handler.set_displayname(user, requester, new_name, is_admin)
diff --git a/synapse/rest/client/v1/pusher.py b/synapse/rest/client/v1/pusher.py

index 89823fcc39..0c148a213d 100644
--- a/synapse/rest/client/v1/pusher.py
+++ b/synapse/rest/client/v1/pusher.py
@@ -159,7 +159,9 @@ class PushersRemoveRestServlet(RestServlet):
         self.notifier.on_new_replication_data()
 
         respond_with_html_bytes(
-            request, 200, PushersRemoveRestServlet.SUCCESS_HTML,
+            request,
+            200,
+            PushersRemoveRestServlet.SUCCESS_HTML,
         )
         return None
 
diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py

index 90fd98c53e..9a1df30c29 100644
--- a/synapse/rest/client/v1/room.py
+++ b/synapse/rest/client/v1/room.py
@@ -362,7 +362,9 @@ class PublicRoomListRestServlet(TransactionRestServlet):
                 parse_and_validate_server_name(server)
             except ValueError:
                 raise SynapseError(
-                    400, "Invalid server name: %s" % (server,), Codes.INVALID_PARAM,
+                    400,
+                    "Invalid server name: %s" % (server,),
+                    Codes.INVALID_PARAM,
                 )
 
             try:
@@ -413,7 +415,9 @@ class PublicRoomListRestServlet(TransactionRestServlet):
                 parse_and_validate_server_name(server)
             except ValueError:
                 raise SynapseError(
-                    400, "Invalid server name: %s" % (server,), Codes.INVALID_PARAM,
+                    400,
+                    "Invalid server name: %s" % (server,),
+                    Codes.INVALID_PARAM,
                 )
 
             try: