diff --git a/celery/backends/dynamodb.py b/celery/backends/dynamodb.py
index cbce6cb9711..479e9ba2f02 100644
--- a/celery/backends/dynamodb.py
+++ b/celery/backends/dynamodb.py
@@ -10,7 +10,6 @@
 from celery.exceptions import ImproperlyConfigured
 from celery.five import string
 from celery.utils.log import get_logger
-
 from .base import KeyValueStoreBackend
 
 try:
@@ -288,7 +287,6 @@ def _get_table_ttl_description(self):
             description = self._client.describe_time_to_live(
                 TableName=self.table_name
             )
-            status = description['TimeToLiveDescription']['TimeToLiveStatus']
         except ClientError as e:
             error_code = e.response['Error'].get('Code', 'Unknown')
             error_message = e.response['Error'].get('Message', 'Unknown')
@@ -321,9 +319,9 @@ def _set_table_ttl(self):
                         'DynamoDB Time to Live is {situation} '
                         'on table {table}'
                     ).format(
-                        situation='already enabled' \
-                            if status == 'ENABLED' \
-                            else 'currently being enabled',
+                        situation='already enabled'
+                        if status == 'ENABLED'
+                        else 'currently being enabled',
                         table=self.table_name
                     ))
                     return description
@@ -336,9 +334,9 @@ def _set_table_ttl(self):
                     'DynamoDB Time to Live is {situation} '
                     'on table {table}'
                 ).format(
-                    situation='already disabled' \
-                        if status == 'DISABLED' \
-                        else 'currently being disabled',
+                    situation='already disabled'
+                    if status == 'DISABLED'
+                    else 'currently being disabled',
                     table=self.table_name
                 ))
                 return description
@@ -346,7 +344,7 @@ def _set_table_ttl(self):
         # The state shouldn't ever have any value beyond the four handled
         # above, but to ease troubleshooting of potential future changes, emit
         # a log showing the unknown state.
-        else: # pragma: no cover
+        else:  # pragma: no cover
             logger.warning((
                 'Unknown DynamoDB Time to Live status {status} '
                 'on table {table}. Attempting to continue.'
diff --git a/t/integration/test_canvas.py b/t/integration/test_canvas.py
index a5e68af5e3d..bf97cae4159 100644
--- a/t/integration/test_canvas.py
+++ b/t/integration/test_canvas.py
@@ -71,7 +71,7 @@ def test_link_error_using_signature_eager(self):
 
         exception = ExpectedException("Task expected to fail", "test")
         assert (fail.apply().get(timeout=TIMEOUT, propagate=False), True) == (
-        exception, True)
+            exception, True)
 
     @pytest.mark.flaky(reruns=5, reruns_delay=1, cause=is_retryable_exception)
     def test_link_error_using_signature(self):
@@ -82,7 +82,7 @@ def test_link_error_using_signature(self):
 
         exception = ExpectedException("Task expected to fail", "test")
         assert (fail.delay().get(timeout=TIMEOUT, propagate=False), True) == (
-        exception, True)
+            exception, True)
 
 
 class test_chain:
@@ -101,8 +101,8 @@ def test_single_chain(self, manager):
     def test_complex_chain(self, manager):
         c = (
             add.s(2, 2) | (
-            add.s(4) | add_replaced.s(8) | add.s(16) | add.s(32)
-        ) |
+                add.s(4) | add_replaced.s(8) | add.s(16) | add.s(32)
+            ) |
             group(add.s(i) for i in range(4))
         )
         res = c()
@@ -572,7 +572,7 @@ def test_redis_subscribed_channels_leak(self, manager):
         # (existing from previous tests).
         chord_header_task_count = 2
         assert channels_before_count <= \
-               chord_header_task_count * total_chords + initial_channels_count
+            chord_header_task_count * total_chords + initial_channels_count
 
         result_values = [
             result.get(timeout=TIMEOUT)
diff --git a/t/unit/backends/test_dynamodb.py b/t/unit/backends/test_dynamodb.py
index 7a04c82d4e2..e211648db6f 100644
--- a/t/unit/backends/test_dynamodb.py
+++ b/t/unit/backends/test_dynamodb.py
@@ -117,7 +117,7 @@ def test_get_client_time_to_live_called(
             app=self.app,
             url='dynamodb://key:secret@test?ttl_seconds=30'
         )
-        client = backend._get_client()
+        backend._get_client()
 
         mock_validate_ttl_methods.assert_called_once()
         mock_set_table_ttl.assert_called_once()
@@ -248,7 +248,7 @@ def test_set_table_ttl_enable_when_disabled_succeeds(self):
             }
         }
 
-        res = self.backend._set_table_ttl()
+        self.backend._set_table_ttl()
         mock_describe_time_to_live.assert_called_once_with(
             TableName=self.backend.table_name
         )
@@ -257,8 +257,7 @@ def test_set_table_ttl_enable_when_disabled_succeeds(self):
     def test_set_table_ttl_enable_when_enabled_with_correct_attr_succeeds(self):
         self.backend.time_to_live_seconds = 30
         self.backend._client = MagicMock()
-        mock_update_time_to_live = self.backend._client.update_time_to_live = \
-            MagicMock()
+        self.backend._client.update_time_to_live = MagicMock()
 
         mock_describe_time_to_live = \
             self.backend._client.describe_time_to_live = MagicMock()
@@ -344,8 +343,7 @@ def test_set_table_ttl_enable_when_enabled_with_wrong_attr_raises(self):
     def test_set_table_ttl_disable_when_disabled_succeeds(self):
         self.backend.time_to_live_seconds = -1
         self.backend._client = MagicMock()
-        mock_update_time_to_live = self.backend._client.update_time_to_live = \
-            MagicMock()
+        self.backend._client.update_time_to_live = MagicMock()
         mock_describe_time_to_live = \
             self.backend._client.describe_time_to_live = MagicMock()