Fix code style

Author: Peng Ren

.flake8

@@ -1,3 +1,3 @@
 [flake8]
-max-line-length = 120
+max-line-length = 127
 exclude = */partiql/*.py

.github/workflows/ci.yml

@@ -69,7 +69,7 @@ jobs:
 
     - name: Check code style with flake8
       run: |
-        flake8 pymongosql/ --count --max-line-length=127 --statistics
+        flake8 pymongosql/ --count --statistics
 
     - name: Set up test database
       run: |

pymongosql/connection.py

@@ -1,12 +1,12 @@
 # -*- coding: utf-8 -*-
 import logging
-from typing import Optional, Type, Dict, Any, Union
+from typing import Optional, Type
 from urllib.parse import quote_plus
 
 from pymongo import MongoClient
 from pymongo.database import Database
 from pymongo.collection import Collection
-from pymongo.errors import PyMongoError, ConnectionFailure
+from pymongo.errors import ConnectionFailure
 
 from .error import NotSupportedError, DatabaseError, OperationalError
 from .common import BaseCursor

pymongosql/cursor.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 import logging
-from typing import TYPE_CHECKING, Any, Dict, List, Optional, TypeVar, Tuple, Iterator
+from typing import TYPE_CHECKING, Any, Dict, List, Optional, TypeVar, Tuple
 
 from pymongo.cursor import Cursor as MongoCursor
 from pymongo.errors import PyMongoError

pymongosql/result_set.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 import logging
-from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple, Iterator, Union
+from typing import Any, Dict, List, Optional, Tuple
 
 from pymongo.cursor import Cursor as MongoCursor
 from pymongo.errors import PyMongoError
@@ -9,9 +9,6 @@
 from .common import CursorIterator
 from .sql.builder import QueryPlan
 
-if TYPE_CHECKING:
-    from .connection import Connection
-
 _logger = logging.getLogger(__name__)