diff --git a/packages/dbgpt-core/src/dbgpt/rag/knowledge/base.py b/packages/dbgpt-core/src/dbgpt/rag/knowledge/base.py
index d0ca0a28e..aef82525a 100644
--- a/packages/dbgpt-core/src/dbgpt/rag/knowledge/base.py
+++ b/packages/dbgpt-core/src/dbgpt/rag/knowledge/base.py
@@ -1,4 +1,5 @@
 """Module for Knowledge Base."""
+
 import re
 from abc import ABC, abstractmethod
 from enum import Enum
@@ -215,6 +216,6 @@ class Knowledge(ABC):
     def parse_document_body(body: str) -> str:
         result = re.sub(r'<a name="(.*)"></a>', "", body)
         result = re.sub(r"<br\s*/?>", "", result)
-        soup = BeautifulSoup(result, 'html.parser')
+        soup = BeautifulSoup(result, "html.parser")
         result = soup.get_text()
         return result
diff --git a/packages/dbgpt-serve/src/dbgpt_serve/rag/storage_manager.py b/packages/dbgpt-serve/src/dbgpt_serve/rag/storage_manager.py
index a4232bac1..1c91c77fe 100644
--- a/packages/dbgpt-serve/src/dbgpt_serve/rag/storage_manager.py
+++ b/packages/dbgpt-serve/src/dbgpt_serve/rag/storage_manager.py
@@ -48,30 +48,37 @@ class StorageManager(BaseComponent):
             if not storage_config.graph:
                 raise ValueError(
                     "Graph storage is not configured. To use Knowledge Graph:\n"
-                    "1. Make sure TuGraph database is running (docker run -d -p 7687:7687 --name tugraph_demo tugraph/tugraph-runtime-centos7:latest)\n"
+                    "1. Make sure TuGraph database is running "
+                    "(docker run -d -p 7687:7687 --name tugraph_demo "
+                    "tugraph/tugraph-runtime-centos7:latest)\n"
                     "2. Start the webserver with graph storage config:\n"
                     "   python dbgpt_server.py --config configs/dbgpt-graphrag.toml\n"
-                    "3. Or add [rag.storage.graph] section to your current config file:\n"
+                    "3. Or add [rag.storage.graph] section to your current config "
+                    "file:\n"
                     "   [rag.storage.graph]\n"
-                    "   type = \"TuGraph\"\n"
-                    "   host = \"127.0.0.1\"\n"
+                    '   type = "TuGraph"\n'
+                    '   host = "127.0.0.1"\n'
                     "   port = 7687\n"
-                    "   username = \"admin\"\n"
-                    "   password = \"73@TuGraph\"\n"
-                    "See docs/docs/installation/integrations/graph_rag_install.md for details."
+                    '   username = "admin"\n'
+                    '   password = "73@TuGraph"\n'
+                    "See docs/docs/installation/integrations/graph_rag_install.md "
+                    "for details."
                 )
             return self.create_kg_store(index_name, llm_model)
         elif storage_type == "FullText":
             if not storage_config.full_text:
                 raise ValueError(
-                    "FullText storage is not configured. To use Full-Text Search (BM25):\n"
-                    "1. Make sure Elasticsearch is running (docker run -d -p 9200:9200 -e \"discovery.type=single-node\" elasticsearch:8.7.0)\n"
+                    "FullText storage is not configured. To use Full-Text "
+                    "Search (BM25):\n"
+                    "1. Make sure Elasticsearch is running (docker run -d -p "
+                    '9200:9200 -e "discovery.type=single-node" elasticsearch:8.7.0)\n'
                     "2. Start the webserver with full-text config:\n"
                     "   python dbgpt_server.py --config configs/dbgpt-bm25-rag.toml\n"
-                    "3. Or add [rag.storage.full_text] section to your current config file:\n"
+                    "3. Or add [rag.storage.full_text] section to your current "
+                    "config file:\n"
                     "   [rag.storage.full_text]\n"
-                    "   type = \"elasticsearch\"\n"
-                    "   host = \"127.0.0.1\"\n"
+                    '   type = "elasticsearch"\n'
+                    '   host = "127.0.0.1"\n'
                     "   port = 9200\n"
                     "See documentation for details."
                 )