3 files changed, 9 insertions, 17 deletions
diff --git a/synapse/rest/client/v2_alpha/account.py b/synapse/rest/client/v2_alpha/account.py
index 1dc4a3247f..923bcb9f85 100644
--- a/synapse/rest/client/v2_alpha/account.py
+++ b/synapse/rest/client/v2_alpha/account.py
@@ -15,8 +15,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
-
-from six.moves import http_client
+from http import HTTPStatus
 
 from synapse.api.constants import LoginType
 from synapse.api.errors import Codes, SynapseError, ThreepidValidationError
@@ -321,7 +320,7 @@ class DeactivateAccountRestServlet(RestServlet):
         erase = body.get("erase", False)
         if not isinstance(erase, bool):
             raise SynapseError(
-                http_client.BAD_REQUEST,
+                HTTPStatus.BAD_REQUEST,
                 "Param 'erase' must be a boolean, if given",
                 Codes.BAD_JSON,
             )
diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py
index b9ffe86b2a..141a3f5fac 100644
--- a/synapse/rest/client/v2_alpha/register.py
+++ b/synapse/rest/client/v2_alpha/register.py
@@ -18,8 +18,6 @@ import hmac
 import logging
 from typing import List, Union
 
-from six import string_types
-
 import synapse
 import synapse.api.auth
 import synapse.types
@@ -413,7 +411,7 @@ class RegisterRestServlet(RestServlet):
         # in sessions. Pull out the username/password provided to us.
         if "password" in body:
             password = body.pop("password")
-            if not isinstance(password, string_types) or len(password) > 512:
+            if not isinstance(password, str) or len(password) > 512:
                 raise SynapseError(400, "Invalid password")
             self.password_policy_handler.validate_password(password)
 
@@ -425,10 +423,7 @@ class RegisterRestServlet(RestServlet):
 
         desired_username = None
         if "username" in body:
-            if (
-                not isinstance(body["username"], string_types)
-                or len(body["username"]) > 512
-            ):
+            if not isinstance(body["username"], str) or len(body["username"]) > 512:
                 raise SynapseError(400, "Invalid username")
             desired_username = body["username"]
 
@@ -453,7 +448,7 @@ class RegisterRestServlet(RestServlet):
 
             access_token = self.auth.get_access_token_from_request(request)
 
-            if isinstance(desired_username, string_types):
+            if isinstance(desired_username, str):
                 result = await self._do_appservice_registration(
                     desired_username, access_token, body
                 )
diff --git a/synapse/rest/client/v2_alpha/report_event.py b/synapse/rest/client/v2_alpha/report_event.py
index f067b5edac..e15927c4ea 100644
--- a/synapse/rest/client/v2_alpha/report_event.py
+++ b/synapse/rest/client/v2_alpha/report_event.py
@@ -14,9 +14,7 @@
 # limitations under the License.
 
 import logging
-
-from six import string_types
-from six.moves import http_client
+from http import HTTPStatus
 
 from synapse.api.errors import Codes, SynapseError
 from synapse.http.servlet import (
@@ -47,15 +45,15 @@ class ReportEventRestServlet(RestServlet):
         body = parse_json_object_from_request(request)
         assert_params_in_dict(body, ("reason", "score"))
 
-        if not isinstance(body["reason"], string_types):
+        if not isinstance(body["reason"], str):
             raise SynapseError(
-                http_client.BAD_REQUEST,
+                HTTPStatus.BAD_REQUEST,
                 "Param 'reason' must be a string",
                 Codes.BAD_JSON,
             )
         if not isinstance(body["score"], int):
             raise SynapseError(
-                http_client.BAD_REQUEST,
+                HTTPStatus.BAD_REQUEST,
                 "Param 'score' must be an integer",
                 Codes.BAD_JSON,
             )