diff --git a/lightrag/api/lightrag_server.py b/lightrag/api/lightrag_server.py
index 2cb53fcd..28e13614 100644
--- a/lightrag/api/lightrag_server.py
+++ b/lightrag/api/lightrag_server.py
@@ -599,9 +599,7 @@ def create_app(args):
             }
         username = form_data.username
         if auth_handler.accounts.get(username) != form_data.password:
-            raise HTTPException(
-                status_code=401, detail="Incorrect credentials"
-            )
+            raise HTTPException(status_code=401, detail="Incorrect credentials")
 
         # Regular user login
         user_token = auth_handler.create_token(
diff --git a/lightrag/lightrag.py b/lightrag/lightrag.py
index 1d8c08ed..f5529bad 100644
--- a/lightrag/lightrag.py
+++ b/lightrag/lightrag.py
@@ -422,13 +422,15 @@ class LightRAG:
         if self.ollama_server_infos is None:
             self.ollama_server_infos = OllamaServerInfos()
 
-
         # Validate config
         if self.force_llm_summary_on_merge < 3:
             logger.warning(
                 f"force_llm_summary_on_merge should be at least 3, got {self.force_llm_summary_on_merge}"
             )
-        if self.summary_max_tokens * self.force_llm_summary_on_merge > self.summary_context_size:
+        if (
+            self.summary_max_tokens * self.force_llm_summary_on_merge
+            > self.summary_context_size
+        ):
             logger.warning(
                 f"summary_context_size must be at least summary_max_tokens * force_llm_summary_on_merge, got {self.summary_context_size}"
             )