diff --git a/.gitignore b/.gitignore
index 01e145a8..e6f5f5ba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,4 +13,4 @@ ignore_this.txt
 *.ignore.*
 .ruff_cache/
 gui/
-*.log
\ No newline at end of file
+*.log
diff --git a/examples/lightrag_api_oracle_demo..py b/examples/lightrag_api_oracle_demo..py
index c06b8a83..8aaa2cf5 100644
--- a/examples/lightrag_api_oracle_demo..py
+++ b/examples/lightrag_api_oracle_demo..py
@@ -1,16 +1,14 @@
-
 from fastapi import FastAPI, HTTPException, File, UploadFile
 from fastapi import Query
 from contextlib import asynccontextmanager
 from pydantic import BaseModel
-from typing import Optional,Any
-from fastapi.responses import JSONResponse
+from typing import Optional, Any
+
+import sys
+import os
+
 
-import sys, os
-print(os.getcwd())
 from pathlib import Path
-script_directory = Path(__file__).resolve().parent.parent
-sys.path.append(os.path.abspath(script_directory))
 
 import asyncio
 import nest_asyncio
@@ -18,10 +16,12 @@ from lightrag import LightRAG, QueryParam
 from lightrag.llm import openai_complete_if_cache, openai_embedding
 from lightrag.utils import EmbeddingFunc
 import numpy as np
-from datetime import datetime
 
 from lightrag.kg.oracle_impl import OracleDB
 
+print(os.getcwd())
+script_directory = Path(__file__).resolve().parent.parent
+sys.path.append(os.path.abspath(script_directory))
 
 
 # Apply nest_asyncio to solve event loop issues
@@ -47,7 +47,8 @@ print(f"EMBEDDING_MAX_TOKEN_SIZE: {EMBEDDING_MAX_TOKEN_SIZE}")
 
 if not os.path.exists(WORKING_DIR):
     os.mkdir(WORKING_DIR)
-    
+
+
 async def llm_model_func(
     prompt, system_prompt=None, history_messages=[], **kwargs
 ) -> str:
@@ -77,10 +78,10 @@ async def get_embedding_dim():
     embedding_dim = embedding.shape[1]
     return embedding_dim
 
+
 async def init():
-    
     # Detect embedding dimension
-    embedding_dimension = 1024  #await get_embedding_dim()
+    embedding_dimension = 1024  # await get_embedding_dim()
     print(f"Detected embedding dimension: {embedding_dimension}")
     # Create Oracle DB connection
     # The `config` parameter is the connection configuration of Oracle DB
@@ -88,36 +89,36 @@ async def init():
     # We storage data in unified tables, so we need to set a `workspace` parameter to specify which docs we want to store and query
     # Below is an example of how to connect to Oracle Autonomous Database on Oracle Cloud
 
+    oracle_db = OracleDB(
+        config={
+            "user": "",
+            "password": "",
+            "dsn": "",
+            "config_dir": "path_to_config_dir",
+            "wallet_location": "path_to_wallet_location",
+            "wallet_password": "wallet_password",
+            "workspace": "company",
+        }  # specify which docs you want to store and query
+    )
 
-    oracle_db = OracleDB(config={
-        "user":"",
-        "password":"",
-        "dsn":"",
-        "config_dir":"path_to_config_dir",
-        "wallet_location":"path_to_wallet_location",
-        "wallet_password":"wallet_password",
-        "workspace":"company"
-        }  # specify which docs you want to store and query               
-        )
-    
     # Check if Oracle DB tables exist, if not, tables will be created
     await oracle_db.check_tables()
     # Initialize LightRAG
-        # We use Oracle DB as the KV/vector/graph storage
+    # We use Oracle DB as the KV/vector/graph storage
     rag = LightRAG(
-            enable_llm_cache=False,
-            working_dir=WORKING_DIR,
-            chunk_token_size=512,
-            llm_model_func=llm_model_func,
-            embedding_func=EmbeddingFunc(
-                embedding_dim=embedding_dimension,
-                max_token_size=512,
-                func=embedding_func,
-                ),            
-            graph_storage = "OracleGraphStorage",
-            kv_storage="OracleKVStorage", 
-            vector_storage="OracleVectorDBStorage"
-        )
+        enable_llm_cache=False,
+        working_dir=WORKING_DIR,
+        chunk_token_size=512,
+        llm_model_func=llm_model_func,
+        embedding_func=EmbeddingFunc(
+            embedding_dim=embedding_dimension,
+            max_token_size=512,
+            func=embedding_func,
+        ),
+        graph_storage="OracleGraphStorage",
+        kv_storage="OracleKVStorage",
+        vector_storage="OracleVectorDBStorage",
+    )
 
     # Setthe KV/vector/graph storage's `db` property, so all operation will use same connection pool
     rag.graph_storage_cls.db = oracle_db
@@ -128,7 +129,7 @@ async def init():
 
 
 # Extract and Insert into LightRAG storage
-#with open("./dickens/book.txt", "r", encoding="utf-8") as f:
+# with open("./dickens/book.txt", "r", encoding="utf-8") as f:
 #   await rag.ainsert(f.read())
 
 # # Perform search in different modes
@@ -147,9 +148,11 @@ class QueryRequest(BaseModel):
     only_need_context: bool = False
     only_need_prompt: bool = False
 
+
 class DataRequest(BaseModel):
     limit: int = 100
 
+
 class InsertRequest(BaseModel):
     text: str
 
@@ -164,6 +167,7 @@ class Response(BaseModel):
 
 rag = None
 
+
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     global rag
@@ -172,25 +176,28 @@ async def lifespan(app: FastAPI):
     yield
 
 
-app = FastAPI(title="LightRAG API", description="API for RAG operations",lifespan=lifespan)
+app = FastAPI(
+    title="LightRAG API", description="API for RAG operations", lifespan=lifespan
+)
+
 
 @app.post("/query", response_model=Response)
 async def query_endpoint(request: QueryRequest):
-    #try:
-        # loop = asyncio.get_event_loop()
+    # try:
+    # loop = asyncio.get_event_loop()
     if request.mode == "naive":
         top_k = 3
     else:
         top_k = 60
     result = await rag.aquery(
-            request.query,
-            param=QueryParam(
-                mode=request.mode, 
-                only_need_context=request.only_need_context,
-                only_need_prompt=request.only_need_prompt,
-                top_k=top_k
-            ),
-        )
+        request.query,
+        param=QueryParam(
+            mode=request.mode,
+            only_need_context=request.only_need_context,
+            only_need_prompt=request.only_need_prompt,
+            top_k=top_k,
+        ),
+    )
     return Response(status="success", data=result)
     # except Exception as e:
     #     raise HTTPException(status_code=500, detail=str(e))
@@ -199,9 +206,9 @@ async def query_endpoint(request: QueryRequest):
 @app.get("/data", response_model=Response)
 async def query_all_nodes(type: str = Query("nodes"), limit: int = Query(100)):
     if type == "nodes":
-        result = await rag.chunk_entity_relation_graph.get_all_nodes(limit = limit)
+        result = await rag.chunk_entity_relation_graph.get_all_nodes(limit=limit)
     elif type == "edges":
-        result = await rag.chunk_entity_relation_graph.get_all_edges(limit = limit)
+        result = await rag.chunk_entity_relation_graph.get_all_edges(limit=limit)
     elif type == "statistics":
         result = await rag.chunk_entity_relation_graph.get_statistics()
     return Response(status="success", data=result)
@@ -264,4 +271,4 @@ if __name__ == "__main__":
 # curl -X POST "http://127.0.0.1:8020/insert_file" -H "Content-Type: application/json" -d '{"file_path": "path/to/your/file.txt"}'
 
 # 4. Health check:
-# curl -X GET "http://127.0.0.1:8020/health"
\ No newline at end of file
+# curl -X GET "http://127.0.0.1:8020/health"
diff --git a/examples/lightrag_oracle_demo.py b/examples/lightrag_oracle_demo.py
index b915c76b..630c1fd8 100644
--- a/examples/lightrag_oracle_demo.py
+++ b/examples/lightrag_oracle_demo.py
@@ -97,8 +97,7 @@ async def main():
             graph_storage="OracleGraphStorage",
             kv_storage="OracleKVStorage",
             vector_storage="OracleVectorDBStorage",
-
-            addon_params = {"example_number":1, "language":"Simplfied Chinese"},
+            addon_params={"example_number": 1, "language": "Simplfied Chinese"},
         )
 
         # Setthe KV/vector/graph storage's `db` property, so all operation will use same connection pool
diff --git a/lightrag/kg/oracle_impl.py b/lightrag/kg/oracle_impl.py
index 2cfbd249..08ce79d5 100644
--- a/lightrag/kg/oracle_impl.py
+++ b/lightrag/kg/oracle_impl.py
@@ -114,7 +114,9 @@ class OracleDB:
 
         logger.info("Finished check all tables in Oracle database")
 
-    async def query(self, sql: str, multirows: bool = False) -> Union[dict, None]:
+    async def query(
+        self, sql: str, params: dict = None, multirows: bool = False
+    ) -> Union[dict, None]:
         async with self.pool.acquire() as connection:
             connection.inputtypehandler = self.input_type_handler
             connection.outputtypehandler = self.output_type_handler
@@ -256,7 +258,7 @@ class OracleKVStorage(BaseKVStorage):
                     item["__vector__"],
                 ]
                 # print(merge_sql)
-                await self.db.execute(merge_sql, data)
+                await self.db.execute(merge_sql, values)
 
         if self.namespace == "full_docs":
             for k, v in self._data.items():
@@ -266,7 +268,7 @@ class OracleKVStorage(BaseKVStorage):
                 )
                 values = [k, self._data[k]["content"], self.db.workspace]
                 # print(merge_sql)
-                await self.db.execute(merge_sql, data)
+                await self.db.execute(merge_sql, values)
         return left_data
 
     async def index_done_callback(self):
diff --git a/lightrag/llm.py b/lightrag/llm.py
index 1acf07e0..d3729941 100644
--- a/lightrag/llm.py
+++ b/lightrag/llm.py
@@ -70,8 +70,8 @@ async def openai_complete_if_cache(
         model=model, messages=messages, **kwargs
     )
     content = response.choices[0].message.content
-    if r'\u' in content:
-        content = content.encode('utf-8').decode('unicode_escape')
+    if r"\u" in content:
+        content = content.encode("utf-8").decode("unicode_escape")
     print(content)
     if hashing_kv is not None:
         await hashing_kv.upsert(
@@ -542,7 +542,7 @@ async def openai_embedding(
     texts: list[str],
     model: str = "text-embedding-3-small",
     base_url: str = None,
-    api_key: str = None
+    api_key: str = None,
 ) -> np.ndarray:
     if api_key:
         os.environ["OPENAI_API_KEY"] = api_key
@@ -551,7 +551,7 @@ async def openai_embedding(
         AsyncOpenAI() if base_url is None else AsyncOpenAI(base_url=base_url)
     )
     response = await openai_async_client.embeddings.create(
-        model=model, input=texts,  encoding_format="float"
+        model=model, input=texts, encoding_format="float"
     )
     return np.array([dp.embedding for dp in response.data])
 
diff --git a/lightrag/operate.py b/lightrag/operate.py
index 1071f8c2..c4740e70 100644
--- a/lightrag/operate.py
+++ b/lightrag/operate.py
@@ -249,13 +249,17 @@ async def extract_entities(
 
     ordered_chunks = list(chunks.items())
     # add language and example number params to prompt
-    language = global_config["addon_params"].get("language",PROMPTS["DEFAULT_LANGUAGE"])
+    language = global_config["addon_params"].get(
+        "language", PROMPTS["DEFAULT_LANGUAGE"]
+    )
     example_number = global_config["addon_params"].get("example_number", None)
-    if example_number and example_number<len(PROMPTS["entity_extraction_examples"]):
-        examples="\n".join(PROMPTS["entity_extraction_examples"][:int(example_number)])
+    if example_number and example_number < len(PROMPTS["entity_extraction_examples"]):
+        examples = "\n".join(
+            PROMPTS["entity_extraction_examples"][: int(example_number)]
+        )
     else:
-        examples="\n".join(PROMPTS["entity_extraction_examples"])    
-    
+        examples = "\n".join(PROMPTS["entity_extraction_examples"])
+
     entity_extract_prompt = PROMPTS["entity_extraction"]
     context_base = dict(
         tuple_delimiter=PROMPTS["DEFAULT_TUPLE_DELIMITER"],
@@ -263,8 +267,9 @@ async def extract_entities(
         completion_delimiter=PROMPTS["DEFAULT_COMPLETION_DELIMITER"],
         entity_types=",".join(PROMPTS["DEFAULT_ENTITY_TYPES"]),
         examples=examples,
-        language=language)
-    
+        language=language,
+    )
+
     continue_prompt = PROMPTS["entiti_continue_extraction"]
     if_loop_prompt = PROMPTS["entiti_if_loop_extraction"]
 
@@ -396,6 +401,7 @@ async def extract_entities(
 
     return knowledge_graph_inst
 
+
 async def kg_query(
     query,
     knowledge_graph_inst: BaseGraphStorage,
@@ -408,59 +414,61 @@ async def kg_query(
     context = None
     example_number = global_config["addon_params"].get("example_number", None)
     if example_number and example_number < len(PROMPTS["keywords_extraction_examples"]):
-        examples = "\n".join(PROMPTS["keywords_extraction_examples"][:int(example_number)])
+        examples = "\n".join(
+            PROMPTS["keywords_extraction_examples"][: int(example_number)]
+        )
     else:
-        examples="\n".join(PROMPTS["keywords_extraction_examples"])
-    
+        examples = "\n".join(PROMPTS["keywords_extraction_examples"])
+
     # Set mode
     if query_param.mode not in ["local", "global", "hybrid"]:
         logger.error(f"Unknown mode {query_param.mode} in kg_query")
         return PROMPTS["fail_response"]
-    
+
     # LLM generate keywords
     use_model_func = global_config["llm_model_func"]
     kw_prompt_temp = PROMPTS["keywords_extraction"]
-    kw_prompt = kw_prompt_temp.format(query=query,examples=examples)
-    result = await use_model_func(kw_prompt)    
-    logger.info(f"kw_prompt result:")
+    kw_prompt = kw_prompt_temp.format(query=query, examples=examples)
+    result = await use_model_func(kw_prompt)
+    logger.info("kw_prompt result:")
     print(result)
     try:
         json_text = locate_json_string_body_from_string(result)
         keywords_data = json.loads(json_text)
         hl_keywords = keywords_data.get("high_level_keywords", [])
         ll_keywords = keywords_data.get("low_level_keywords", [])
-    
+
     # Handle parsing error
     except json.JSONDecodeError as e:
         print(f"JSON parsing error: {e} {result}")
         return PROMPTS["fail_response"]
-    
+
     # Handdle keywords missing
     if hl_keywords == [] and ll_keywords == []:
         logger.warning("low_level_keywords and high_level_keywords is empty")
-        return PROMPTS["fail_response"]    
-    if ll_keywords == [] and query_param.mode in ["local","hybrid"]:
+        return PROMPTS["fail_response"]
+    if ll_keywords == [] and query_param.mode in ["local", "hybrid"]:
         logger.warning("low_level_keywords is empty")
         return PROMPTS["fail_response"]
     else:
         ll_keywords = ", ".join(ll_keywords)
-    if hl_keywords == [] and query_param.mode in ["global","hybrid"]:
+    if hl_keywords == [] and query_param.mode in ["global", "hybrid"]:
         logger.warning("high_level_keywords is empty")
         return PROMPTS["fail_response"]
     else:
         hl_keywords = ", ".join(hl_keywords)
-    
+
     # Build context
-    keywords = [ll_keywords, hl_keywords]    
+    keywords = [ll_keywords, hl_keywords]
     context = await _build_query_context(
-            keywords,
-            knowledge_graph_inst,
-            entities_vdb,
-            relationships_vdb,
-            text_chunks_db,
-            query_param,
-        )
-    
+        keywords,
+        knowledge_graph_inst,
+        entities_vdb,
+        relationships_vdb,
+        text_chunks_db,
+        query_param,
+    )
+
     if query_param.only_need_context:
         return context
     if context is None:
@@ -468,13 +476,13 @@ async def kg_query(
     sys_prompt_temp = PROMPTS["rag_response"]
     sys_prompt = sys_prompt_temp.format(
         context_data=context, response_type=query_param.response_type
-        )
+    )
     if query_param.only_need_prompt:
         return sys_prompt
     response = await use_model_func(
         query,
         system_prompt=sys_prompt,
-        )
+    )
     if len(response) > len(sys_prompt):
         response = (
             response.replace(sys_prompt, "")
@@ -496,44 +504,72 @@ async def _build_query_context(
     relationships_vdb: BaseVectorStorage,
     text_chunks_db: BaseKVStorage[TextChunkSchema],
     query_param: QueryParam,
-    ):
+):
     ll_kewwords, hl_keywrds = query[0], query[1]
     if query_param.mode in ["local", "hybrid"]:
         if ll_kewwords == "":
-            ll_entities_context,ll_relations_context,ll_text_units_context = "","",""
-            warnings.warn("Low Level context is None. Return empty Low entity/relationship/source")
+            ll_entities_context, ll_relations_context, ll_text_units_context = (
+                "",
+                "",
+                "",
+            )
+            warnings.warn(
+                "Low Level context is None. Return empty Low entity/relationship/source"
+            )
             query_param.mode = "global"
         else:
-            ll_entities_context,ll_relations_context,ll_text_units_context = await _get_node_data(
+            (
+                ll_entities_context,
+                ll_relations_context,
+                ll_text_units_context,
+            ) = await _get_node_data(
                 ll_kewwords,
                 knowledge_graph_inst,
                 entities_vdb,
                 text_chunks_db,
-                query_param        
-                )        
+                query_param,
+            )
     if query_param.mode in ["global", "hybrid"]:
         if hl_keywrds == "":
-            hl_entities_context,hl_relations_context,hl_text_units_context = "","",""
-            warnings.warn("High Level context is None. Return empty High entity/relationship/source")
+            hl_entities_context, hl_relations_context, hl_text_units_context = (
+                "",
+                "",
+                "",
+            )
+            warnings.warn(
+                "High Level context is None. Return empty High entity/relationship/source"
+            )
             query_param.mode = "local"
         else:
-            hl_entities_context,hl_relations_context,hl_text_units_context = await _get_edge_data(
+            (
+                hl_entities_context,
+                hl_relations_context,
+                hl_text_units_context,
+            ) = await _get_edge_data(
                 hl_keywrds,
                 knowledge_graph_inst,
                 relationships_vdb,
                 text_chunks_db,
-                query_param
-                )
-    if query_param.mode == 'hybrid':
-        entities_context,relations_context,text_units_context = combine_contexts(
-            [hl_entities_context,ll_entities_context],
-            [hl_relations_context,ll_relations_context],
-            [hl_text_units_context,ll_text_units_context]
-            )            
-    elif query_param.mode == 'local':
-        entities_context,relations_context,text_units_context = ll_entities_context,ll_relations_context,ll_text_units_context
-    elif query_param.mode == 'global':
-        entities_context,relations_context,text_units_context = hl_entities_context,hl_relations_context,hl_text_units_context
+                query_param,
+            )
+    if query_param.mode == "hybrid":
+        entities_context, relations_context, text_units_context = combine_contexts(
+            [hl_entities_context, ll_entities_context],
+            [hl_relations_context, ll_relations_context],
+            [hl_text_units_context, ll_text_units_context],
+        )
+    elif query_param.mode == "local":
+        entities_context, relations_context, text_units_context = (
+            ll_entities_context,
+            ll_relations_context,
+            ll_text_units_context,
+        )
+    elif query_param.mode == "global":
+        entities_context, relations_context, text_units_context = (
+            hl_entities_context,
+            hl_relations_context,
+            hl_text_units_context,
+        )
     return f"""
 # -----Entities-----
 # ```csv
@@ -550,7 +586,6 @@ async def _build_query_context(
 # """
 
 
-
 async def _get_node_data(
     query,
     knowledge_graph_inst: BaseGraphStorage,
@@ -568,7 +603,7 @@ async def _get_node_data(
     )
     if not all([n is not None for n in node_datas]):
         logger.warning("Some nodes are missing, maybe the storage is damaged")
-    
+
     # 获取实体的度
     node_degrees = await asyncio.gather(
         *[knowledge_graph_inst.node_degree(r["entity_name"]) for r in results]
@@ -588,7 +623,7 @@ async def _get_node_data(
     )
     logger.info(
         f"Local query uses {len(node_datas)} entites, {len(use_relations)} relations, {len(use_text_units)} text units"
-    )    
+    )
 
     # 构建提示词
     entites_section_list = [["id", "entity", "type", "description", "rank"]]
@@ -625,7 +660,7 @@ async def _get_node_data(
     for i, t in enumerate(use_text_units):
         text_units_section_list.append([i, t["content"]])
     text_units_context = list_of_list_to_csv(text_units_section_list)
-    return entities_context,relations_context,text_units_context
+    return entities_context, relations_context, text_units_context
 
 
 async def _find_most_related_text_unit_from_entities(
@@ -821,8 +856,7 @@ async def _get_edge_data(
     for i, t in enumerate(use_text_units):
         text_units_section_list.append([i, t["content"]])
     text_units_context = list_of_list_to_csv(text_units_section_list)
-    return entities_context,relations_context,text_units_context
-
+    return entities_context, relations_context, text_units_context
 
 
 async def _find_most_related_entities_from_relationships(
@@ -902,7 +936,7 @@ async def _find_related_text_unit_from_relationships(
 def combine_contexts(entities, relationships, sources):
     # Function to extract entities, relationships, and sources from context strings
     hl_entities, ll_entities = entities[0], entities[1]
-    hl_relationships, ll_relationships = relationships[0],relationships[1]
+    hl_relationships, ll_relationships = relationships[0], relationships[1]
     hl_sources, ll_sources = sources[0], sources[1]
     # Combine and deduplicate the entities
     combined_entities = process_combine_contexts(hl_entities, ll_entities)
diff --git a/lightrag/prompt.py b/lightrag/prompt.py
index 389f45f2..0d4e599d 100644
--- a/lightrag/prompt.py
+++ b/lightrag/prompt.py
@@ -52,7 +52,7 @@ Output:
 """
 
 PROMPTS["entity_extraction_examples"] = [
-"""Example 1:
+    """Example 1:
 
 Entity_types: [person, technology, mission, organization, location]
 Text:
@@ -77,7 +77,7 @@ Output:
 ("relationship"{tuple_delimiter}"Taylor"{tuple_delimiter}"The Device"{tuple_delimiter}"Taylor shows reverence towards the device, indicating its importance and potential impact."{tuple_delimiter}"reverence, technological significance"{tuple_delimiter}9){record_delimiter}
 ("content_keywords"{tuple_delimiter}"power dynamics, ideological conflict, discovery, rebellion"){completion_delimiter}
 #############################""",
-"""Example 2:
+    """Example 2:
 
 Entity_types: [person, technology, mission, organization, location]
 Text:
@@ -95,7 +95,7 @@ Output:
 ("relationship"{tuple_delimiter}"The team"{tuple_delimiter}"Operation: Dulce"{tuple_delimiter}"The team is directly involved in Operation: Dulce, executing its evolved objectives and activities."{tuple_delimiter}"mission evolution, active participation"{tuple_delimiter}9){completion_delimiter}
 ("content_keywords"{tuple_delimiter}"mission evolution, decision-making, active participation, cosmic significance"){completion_delimiter}
 #############################""",
-"""Example 3:
+    """Example 3:
 
 Entity_types: [person, role, technology, organization, event, location, concept]
 Text:
@@ -121,10 +121,12 @@ Output:
 ("relationship"{tuple_delimiter}"Alex"{tuple_delimiter}"Humanity's Response"{tuple_delimiter}"Alex and his team are the key figures in Humanity's Response to the unknown intelligence."{tuple_delimiter}"collective action, cosmic significance"{tuple_delimiter}8){record_delimiter}
 ("relationship"{tuple_delimiter}"Control"{tuple_delimiter}"Intelligence"{tuple_delimiter}"The concept of Control is challenged by the Intelligence that writes its own rules."{tuple_delimiter}"power dynamics, autonomy"{tuple_delimiter}7){record_delimiter}
 ("content_keywords"{tuple_delimiter}"first contact, control, communication, cosmic significance"){completion_delimiter}
-#############################"""
+#############################""",
 ]
 
-PROMPTS["summarize_entity_descriptions"] = """You are a helpful assistant responsible for generating a comprehensive summary of the data provided below.
+PROMPTS[
+    "summarize_entity_descriptions"
+] = """You are a helpful assistant responsible for generating a comprehensive summary of the data provided below.
 Given one or two entities, and a list of descriptions, all related to the same entity or group of entities.
 Please concatenate all of these into a single, comprehensive description. Make sure to include information collected from all the descriptions.
 If the provided descriptions are contradictory, please resolve the contradictions and provide a single, coherent summary.
@@ -139,10 +141,14 @@ Description List: {description_list}
 Output:
 """
 
-PROMPTS["entiti_continue_extraction"] = """MANY entities were missed in the last extraction.  Add them below using the same format:
+PROMPTS[
+    "entiti_continue_extraction"
+] = """MANY entities were missed in the last extraction.  Add them below using the same format:
 """
 
-PROMPTS["entiti_if_loop_extraction"] = """It appears some entities may have still been missed.  Answer YES | NO if there are still entities that need to be added.
+PROMPTS[
+    "entiti_if_loop_extraction"
+] = """It appears some entities may have still been missed.  Answer YES | NO if there are still entities that need to be added.
 """
 
 PROMPTS["fail_response"] = "Sorry, I'm not able to provide an answer to that question."
@@ -201,7 +207,7 @@ Output:
 """
 
 PROMPTS["keywords_extraction_examples"] = [
-  """Example 1:
+    """Example 1:
 
 Query: "How does international trade influence global economic stability?"
 ################
@@ -211,7 +217,7 @@ Output:
   "low_level_keywords": ["Trade agreements", "Tariffs", "Currency exchange", "Imports", "Exports"]
 }}
 #############################""",
-  """Example 2:
+    """Example 2:
 
 Query: "What are the environmental consequences of deforestation on biodiversity?"
 ################
@@ -220,8 +226,8 @@ Output:
   "high_level_keywords": ["Environmental consequences", "Deforestation", "Biodiversity loss"],
   "low_level_keywords": ["Species extinction", "Habitat destruction", "Carbon emissions", "Rainforest", "Ecosystem"]
 }}
-#############################""", 
-  """Example 3:
+#############################""",
+    """Example 3:
 
 Query: "What is the role of education in reducing poverty?"
 ################
@@ -230,8 +236,8 @@ Output:
   "high_level_keywords": ["Education", "Poverty reduction", "Socioeconomic development"],
   "low_level_keywords": ["School access", "Literacy rates", "Job training", "Income inequality"]
 }}
-#############################"""
-] 
+#############################""",
+]
 
 
 PROMPTS["naive_rag_response"] = """---Role---
diff --git a/lightrag/utils.py b/lightrag/utils.py
index fc739002..bdd1aa9e 100644
--- a/lightrag/utils.py
+++ b/lightrag/utils.py
@@ -56,7 +56,8 @@ def locate_json_string_body_from_string(content: str) -> Union[str, None]:
             maybe_json_str = maybe_json_str.replace("'", '"')
             json.loads(maybe_json_str)
             return maybe_json_str
-    except:
+    except Exception:
+        pass
         # try:
         #     content = (
         #         content.replace(kw_prompt[:-1], "")
@@ -64,9 +65,9 @@ def locate_json_string_body_from_string(content: str) -> Union[str, None]:
         #         .replace("model", "")
         #         .strip()
         #     )
-        #     maybe_json_str = "{" + content.split("{")[1].split("}")[0] + "}" 
+        #     maybe_json_str = "{" + content.split("{")[1].split("}")[0] + "}"
         #     json.loads(maybe_json_str)
-        
+
         return None