Added warning

app.py

@@ -62,31 +62,34 @@ def bot(history_chat, text_input, image,
             max_length,
             min_length,
             top_p):
-  chat_history = " ".join(history_chat) # history as a str to be passed to model
-  chat_history = chat_history + f"USER: <image>\n{text_input}\nASSISTANT:" # add text input for prompting
-
-
-  inference_result = infer(image, chat_history,
+                
+    if text_input == "":
+        gr.Warning("Please input text")
+
+    if image==None:
+        gr.Warning("Please input image or wait for image to be uploaded before clicking submit.")
+    chat_history = " ".join(history_chat) # history as a str to be passed to model
+    chat_history = chat_history + f"USER: <image>\n{text_input}\nASSISTANT:" # add text input for prompting
+    inference_result = infer(image, chat_history,
             temperature,
             length_penalty,
             repetition_penalty,
             max_length,
             min_length,
             top_p)
-  # return inference and parse for new history
-  chat_val = extract_response_pairs(inference_result)
-
-  # create history list for yielding the last inference response
-  chat_state_list = copy.deepcopy(chat_val)
-  chat_state_list[-1][1] = "" # empty last response
-
-  # add characters iteratively
-
-  for character in chat_val[-1][1]:
-    chat_state_list[-1][1] += character
-    time.sleep(0.05)
-    # yield history but with last response being streamed
-    yield chat_state_list
+    # return inference and parse for new history
+    chat_val = extract_response_pairs(inference_result)
+    
+    # create history list for yielding the last inference response
+    chat_state_list = copy.deepcopy(chat_val)
+    chat_state_list[-1][1] = "" # empty last response
+    
+    # add characters iteratively
+    for character in chat_val[-1][1]:
+        chat_state_list[-1][1] += character
+        time.sleep(0.05)
+        # yield history but with last response being streamed
+        yield chat_state_list
 
 
 css = """