diff --git a/sqlite_utils/db.py b/sqlite_utils/db.py
index 5c1cc99..144330a 100644
--- a/sqlite_utils/db.py
+++ b/sqlite_utils/db.py
@@ -237,37 +237,30 @@ if pd:
 
 class AlterError(Exception):
     "Error altering table"
-    pass
 
 
 class NoObviousTable(Exception):
     "Could not tell which table this operation refers to"
-    pass
 
 
 class NoTable(Exception):
     "Specified table does not exist"
-    pass
 
 
 class BadPrimaryKey(Exception):
     "Table does not have a single obvious primary key"
-    pass
 
 
 class NotFoundError(Exception):
     "Record not found"
-    pass
 
 
 class PrimaryKeyRequired(Exception):
     "Primary key needs to be specified"
-    pass
 
 
 class InvalidColumns(Exception):
     "Specified columns do not exist"
-    pass
 
 
 class DescIndex(str):
@@ -3852,7 +3845,7 @@ def jsonify_if_needed(value):
 
 
 def resolve_extracts(
-    extracts: Optional[Union[Dict[str, str], List[str], Tuple[str]]]
+    extracts: Optional[Union[Dict[str, str], List[str], Tuple[str]]],
 ) -> dict:
     if extracts is None:
         extracts = {}
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 4e564f1..4033af6 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -916,7 +916,7 @@ def test_query_json_with_json_cols(db_path):
 
 @pytest.mark.parametrize(
     "content,is_binary",
-    [(b"\x00\x0Fbinary", True), ("this is text", False), (1, False), (1.5, False)],
+    [(b"\x00\x0fbinary", True), ("this is text", False), (1, False), (1.5, False)],
 )
 def test_query_raw(db_path, content, is_binary):
     Database(db_path)["files"].insert({"content": content})
@@ -931,7 +931,7 @@ def test_query_raw(db_path, content, is_binary):
 
 @pytest.mark.parametrize(
     "content,is_binary",
-    [(b"\x00\x0Fbinary", True), ("this is text", False), (1, False), (1.5, False)],
+    [(b"\x00\x0fbinary", True), ("this is text", False), (1, False), (1.5, False)],
 )
 def test_query_raw_lines(db_path, content, is_binary):
     Database(db_path)["files"].insert_all({"content": content} for _ in range(3))