Update app.py

app.py

@@ -12,7 +12,7 @@ with gr.Blocks() as iface:
     pet_width = gr.Textbox(label="Petal Width")
     
     button = gr.Button(label="Predict")
-    button.click(fn=predict_length, inputs=[sep_length, sep_width, pet_length, pet_width] outputs="text", api_name="predict_length")
+    button.click(fn=predict_length, inputs=["text", "text", "text", "text"], outputs="text", api_name="predict_length")
     
     
 # Launch the interface