Concept Calculator Flask

concept.py

 if request.method == "POST":  
        option  = request.form.get('option')
        num1  = request.form.get('num1')
        num2  = request.form.get('num2')

        if option == "Addition":
            data = num1 + num2
        elif option == "subtraction":
            datd = num1 - num2
        elif option == "subtraction":
            datd = num1 / num2
        elif option == "subtraction":
            data = num1 * num2
        return render_template('result.html', data=data)
    return render_template('index2.html')