Update app.py

app.py

@@ -11,7 +11,7 @@ import pandas as pd
 from langchain.tools import Tool
 from dotenv import load_dotenv
 
-from arxiv_searcher import ArxivSearcher
+import arxiv
 from chess_algebraic_notation_retriever import ChessAlgebraicNotationMoveRetriever
 from excel_file_reader import ExcelFileReader
 from image_question_answer_tool import ImageQuestionAnswerTool