fixed linting

lightrag/kg/age_impl.py

@@ -23,6 +23,7 @@ from ..base import BaseGraphStorage
 
 if sys.platform.startswith("win"):
     import asyncio.windows_events
+
     asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
 
 
@@ -37,6 +38,7 @@ import psycopg
 from psycopg.rows import namedtuple_row
 from psycopg_pool import AsyncConnectionPool, PoolTimeout
 
+
 class AGEQueryException(Exception):
     """Exception for the AGE queries."""
 

lightrag/kg/gremlin_impl.py

@@ -28,6 +28,7 @@ from gremlin_python.driver import client, serializer
 from gremlin_python.driver.aiohttp.transport import AiohttpTransport
 from gremlin_python.driver.protocol import GremlinServerError
 
+
 @final
 @dataclass
 class GremlinStorage(BaseGraphStorage):

lightrag/kg/nano_vector_db_impl.py

@@ -20,6 +20,7 @@ if not pm.is_installed("nano-vectordb"):
 
 from nano_vectordb import NanoVectorDB
 
+
 @final
 @dataclass
 class NanoVectorDBStorage(BaseVectorStorage):

lightrag/kg/postgres_impl.py

@@ -41,6 +41,7 @@ if not pm.is_installed("asyncpg"):
 import asyncpg
 from asyncpg import Pool
 
+
 class PostgreSQLDB:
     def __init__(self, config: dict[str, Any], **kwargs: Any):
         self.host = config.get("host", "localhost")

lightrag/kg/tidb_impl.py

@@ -23,7 +23,6 @@ if not pm.is_installed("sqlalchemy"):
 from sqlalchemy import create_engine, text
 
 
-
 class TiDB:
     def __init__(self, config, **kwargs):
         self.host = config.get("host", None)