Update app.py

app.py

@@ -88,7 +88,7 @@ def main():
         ai_choice_var = ai_choice()
         ai_choice_front_end = "AI has selected: " + ai_choice_var
         st.code(ai_choice_front_end)
-        if (user_input)>0:
+        if len(user_input)>0:
             winner_name = winner(user_input,ai_choice_var)
             if len(winner_name)!=0:
                 with st.container():