Update app.py

app.py

@@ -261,16 +261,21 @@ def bot(history, temperature, top_p, max_output_tokens):
     num_new_images = 0
     for i, message in enumerate(history[:-1]):
         if type(message[0]) is tuple:
-            images_this_term.append(message[0][0])
-            if is_valid_video_filename(message[0][0]):
-                # 不接受视频
-                raise ValueError("Video is not supported")
-                num_new_images += our_chatbot.num_frames
-            elif is_valid_image_filename(message[0][0]):
-                print("#### Load image from local file",message[0][0])
-                num_new_images += 1
+            print("### message[0]",message[0])
+            if len(message[0])>1:
+                gr.Warning("Only one image can be uploaded in a conversation. Please reduce the number of images and start a new conversation.")
+                return history 
             else:
-                raise ValueError("Invalid image file")
+                images_this_term.append(message[0][0])
+                if is_valid_video_filename(message[0][0]):
+                    # 不接受视频
+                    raise ValueError("Video is not supported")
+                    num_new_images += our_chatbot.num_frames
+                elif is_valid_image_filename(message[0][0]):
+                    print("#### Load image from local file",message[0][0])
+                    num_new_images += 1
+                else:
+                    raise ValueError("Invalid image file")
         else:
             num_new_images = 0