isort 5 compatibility (#7786)

The CI appears to use the latest version of isort, which is a problem when isort gets a major version bump. Rather than try to pin the version, I've done the necessary to make isort5 happy with synapse.

2 files changed, 2 insertions, 4 deletions

diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py
index d713a06bf9..a162392e4c 100644
--- a/synapse/handlers/auth.py
+++ b/synapse/handlers/auth.py
@@ -13,7 +13,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
 import logging
 import time
 import unicodedata
@@ -24,7 +23,6 @@ import attr
 import bcrypt  # type: ignore[import]
 import pymacaroons
 
-import synapse.util.stringutils as stringutils
 from synapse.api.constants import LoginType
 from synapse.api.errors import (
     AuthError,
@@ -45,6 +43,7 @@ from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.module_api import ModuleApi
 from synapse.push.mailer import load_jinja2_templates
 from synapse.types import Requester, UserID
+from synapse.util import stringutils as stringutils
 from synapse.util.threepids import canonicalise_email
 
 from ._base import BaseHandler
diff --git a/synapse/handlers/cas_handler.py b/synapse/handlers/cas_handler.py
index 76f213723a..d79ffefdb5 100644
--- a/synapse/handlers/cas_handler.py
+++ b/synapse/handlers/cas_handler.py
@@ -12,11 +12,10 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
 import logging
 import urllib
-import xml.etree.ElementTree as ET
 from typing import Dict, Optional, Tuple
+from xml.etree import ElementTree as ET
 
 from twisted.web.client import PartialDownloadError