Update app.py

app.py

@@ -362,6 +362,8 @@ def main():
     loaded_documents = []
 
     if uploaded_files:
+        if not uploaded_documents:
+            st.warning("Please upload some documents.")
         # Create a temporary directory
         # with tempfile.TemporaryDirectory() as td:
         #     # Move the uploaded files to the temporary directory and process them
@@ -385,7 +387,6 @@ def main():
                 # Use Langchain loader to process the file
                 loader = loader_class(os.path.join(td, file), **loader_args)
                 loaded_documents.extend(loader.load())
-                st.write(f"loaded_documents: {loaded_documents}")
                 # # Check if the extension is in FILE_LOADER_MAPPING
                 # if ext in FILE_LOADER_MAPPING:
                 #     loader_class, loader_args = FILE_LOADER_MAPPING[ext]
@@ -401,7 +402,7 @@ def main():
                 #     loader = loader_class(os.path.join(td, file), **loader_args)
                 #     loaded_documents.extend(loader.load())
                 #     st.write(f"loaded_documents: {loaded_documents}")
-
+        st.write(f"loaded_documents: {loaded_documents}")  
         st.write("Chat with the Document:")
         query = st.text_input("Ask a question:")