Update app.py

app.py

@@ -12,7 +12,7 @@ ph_message="If you're not happy with sound result, you can manually describe the
 
 def input_changes(input_img):
     if input_img == None:
-        input_clear()
+        pass
     else:
         cap = caption(input_img, fn_index=0)
         print("gpt2 caption: '" + cap + "' • ")