Update app.py

app.py

@@ -21,7 +21,6 @@ def respond(message, history):
 
     # encode + generate
     inputs  = tokenizer(prompt, return_tensors="pt")
-    logging.info(f"Inputs: {inputs}")
     outputs = model.generate(
         **inputs,
         max_new_tokens=200,
@@ -36,16 +35,13 @@ def respond(message, history):
 
     answer_vi = translator_en2vi.translate(answer)
     
-    # Check if the response includes any files
-    if isinstance(answer_vi, str) and answer_vi.startswith("file:"):
-        # Handle the file response separately (you can modify this logic based on your requirements)
-        history.append((message, answer_vi))
-        return "", history
+    # Ensure that the response is a valid string and not empty
+    if not answer_vi.strip():  # if the response is empty
+        answer_vi = "Sorry, I couldn't understand the question."
 
-    # thêm vào history và return
+    # Add to history and return it
     history.append((message, answer_vi))
     
-    # Ensure the returned history format is a valid list of tuples
     return "", history
 
 # 3) Gradio ChatInterface