feat: 1. replace black with ruff for fomatting and sort import (#489)

2. use tavily from`langchain-tavily` rather than the older one from `langchain-community`

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>

src/config/__init__.py

@@ -1,12 +1,12 @@
 # Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 # SPDX-License-Identifier: MIT
 
-from .loader import load_yaml_config
-from .tools import SELECTED_SEARCH_ENGINE, SearchEngine
-from .questions import BUILT_IN_QUESTIONS, BUILT_IN_QUESTIONS_ZH_CN
-
 from dotenv import load_dotenv
 
+from .loader import load_yaml_config
+from .questions import BUILT_IN_QUESTIONS, BUILT_IN_QUESTIONS_ZH_CN
+from .tools import SELECTED_SEARCH_ENGINE, SearchEngine
+
 # Load environment variables
 load_dotenv()
 

src/config/configuration.py

@@ -8,8 +8,8 @@ from typing import Any, Optional
 
 from langchain_core.runnables import RunnableConfig
 
-from src.rag.retriever import Resource
 from src.config.report_style import ReportStyle
+from src.rag.retriever import Resource
 
 logger = logging.getLogger(__name__)
 

src/config/loader.py

@@ -2,8 +2,9 @@
 # SPDX-License-Identifier: MIT
 
 import os
+from typing import Any, Dict
+
 import yaml
-from typing import Dict, Any
 
 
 def replace_env_vars(value: str) -> str:

src/config/tools.py

@@ -1,8 +1,9 @@
 # Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 # SPDX-License-Identifier: MIT
 
-import os
 import enum
+import os
+
 from dotenv import load_dotenv
 
 load_dotenv()