Update app.py

app.py

@@ -80,8 +80,10 @@ def app_design():
     # Make a prediction when the user clicks the "Predict" button
     if st.button('Predict Grade'):
         predicted_value = model_prediction(model, features)
-      
-        st.success(f"Student Grade is: {predicted_value}")       
+        if int(predicted_value)<=0:
+            st.success(f"Student Grade is: 0")    
+        else:
+            st.success(f"Student Grade is: {predicted_value}")       
 
 
 def about_hidevs():