Update Gradio App.Py

Gradio App.Py

@@ -1 +1,4 @@
-pip install
+inputs = gr.inputs.Textbox(lines=1, label="Enter an arithmetic expression")
+outputs = gr.outputs.Textbox(label="Result")
+interface = gr.Interface(fn=calculate_expression, inputs=inputs, outputs=outputs, title="Calculator")
+interface.launch()