Update app.py

app.py

@@ -25,7 +25,8 @@ from langchain_community.document_loaders import PyPDFLoader
 dat_directory = "Dat"
 files = [Path(dat_directory) / file for file in os.listdir(dat_directory)]
 absolute_paths = [file.resolve() for file in files]
-documents = [SimpleDirectoryReader(str(file)).load_data()[0] for file in absolute_paths]
+absolute_paths_strings = [str(file) for file in absolute_paths]
+documents = [SimpleDirectoryReader(absolute_paths_strings[i]).load_data()[0] for i in range(len(absolute_paths_strings))]
 documents = [CharacterTextSplitter(separator="\n", chunk_size=1000, chunk_overlap=0).split_text(doc) for doc in documents]
 
 from llama_index.prompts.prompts import SimpleInputPrompt