app.py

import gradio as gr

# def greet(name):
#     return "Hello " + name + "!!"

def calculator(num1, num2, operation):
    if operation == "Add":
        return num1+num2
    elif operation == "Sub":
        return num1-num2
    elif operation == "Mul":
        return num1*num2
    elif operation == "Div":
        if num2 == 0:
            return "Error"
        return num1/num2
    
    

# demo = gr.Interface(fn=greet, inputs="text", outputs="text")
face = gr.Interface(fn = calculator,
                    inputs=[gr.Number(label="Number1"), 
                            gr.Number(label="Number2"), 
                            gr.Radio(["Add", "Sub", "Mul", "Div"], label="Operation", info="operation to perform on number")],
                    outputs=gr.Textbox(label="Result") )
face.launch()