fix linting errors

lightrag/kg/json_kv_impl.py

@@ -48,7 +48,6 @@ Usage:
 
 """
 
-
 import asyncio
 import os
 from dataclasses import dataclass
@@ -133,5 +132,3 @@ class JsonKVStorage(BaseKVStorage):
                     del self._data[id]
             await self.index_done_callback()
             logger.info(f"Successfully deleted {len(ids)} items from {self.namespace}")
-
-

lightrag/kg/milvus_impl.py

@@ -7,6 +7,7 @@ from lightrag.utils import logger
 from ..base import BaseVectorStorage
 
 import pipmaster as pm
+
 if not pm.is_installed("pymilvus"):
     pm.install("pymilvus")
 from pymilvus import MilvusClient

lightrag/kg/mongo_impl.py

@@ -2,6 +2,7 @@ import os
 from tqdm.asyncio import tqdm as tqdm_async
 from dataclasses import dataclass
 import pipmaster as pm
+
 if not pm.is_installed("pymongo"):
     pm.install("pymongo")
 

lightrag/kg/nano_vector_db_impl.py

@@ -47,6 +47,7 @@ Usage:
     from lightrag.storage.networkx_storage import NetworkXStorage
 
 """
+
 import asyncio
 import os
 from tqdm.asyncio import tqdm as tqdm_async

lightrag/kg/neo4j_impl.py

@@ -4,6 +4,7 @@ import os
 from dataclasses import dataclass
 from typing import Any, Union, Tuple, List, Dict
 import pipmaster as pm
+
 if not pm.is_installed("neo4j"):
     pm.install("neo4j")
 

lightrag/kg/networkx_impl.py

@@ -47,6 +47,7 @@ Usage:
     from lightrag.storage.networkx_storage import NetworkXStorage
 
 """
+
 import html
 import os
 from dataclasses import dataclass

lightrag/kg/postgres_impl.py

@@ -8,6 +8,7 @@ from typing import Union, List, Dict, Set, Any, Tuple
 import numpy as np
 
 import pipmaster as pm
+
 if not pm.is_installed("asyncpg"):
     pm.install("asyncpg")
 

lightrag/kg/redis_impl.py

@@ -2,6 +2,7 @@ import os
 from tqdm.asyncio import tqdm as tqdm_async
 from dataclasses import dataclass
 import pipmaster as pm
+
 if not pm.is_installed("redis"):
     pm.install("redis")
 

lightrag/kg/tidb_impl.py

@@ -5,17 +5,19 @@ from typing import Union
 
 import numpy as np
 import pipmaster as pm
+
 if not pm.is_installed("pymysql"):
     pm.install("pymysql")
 if not pm.is_installed("sqlalchemy"):
     pm.install("sqlalchemy")
-    
+
 from sqlalchemy import create_engine, text
 from tqdm import tqdm
 
 from lightrag.base import BaseVectorStorage, BaseKVStorage, BaseGraphStorage
 from lightrag.utils import logger
 
+
 class TiDB(object):
     def __init__(self, config, **kwargs):
         self.host = config.get("host", None)