Update app.py

app.py

@@ -75,6 +75,7 @@ def load_single_document(file_path: str) -> Document:
     assert ext in LOADER_MAPPING
     loader_class, loader_args = LOADER_MAPPING[ext]
     loader = loader_class(file_path, **loader_args)
+    print("load_single documernt, return type is: ", type(loader.load()[0]))
     return loader.load()[0]
 
 
@@ -107,6 +108,7 @@ def process_text(text):
 
 def build_index(file_paths, db, chunk_size, chunk_overlap, file_warning):
     documents = [load_single_document(path) for path in file_paths]
+    print("build_index, documents type is :", type(documents))
     text_splitter = RecursiveCharacterTextSplitter(chunk_size=chunk_size, chunk_overlap=chunk_overlap)
     documents = text_splitter.split_documents(documents)
     fixed_documents = []