How to define an attribute of type DateTime in python

I would like to know how to set attributes in python within a class. And tried the following code:

def __init__(self):
    self.fecha_Y_Hs = datetime.datetime.now()
    self.decripcion = ''

I am new in this language and I would like to know how I can declare and store in MySQL using a method to save using callproc () , so far I have this:

Method save ()

def guardar(self):
    try:
        conn = self.conexionMySQL()
        myCursor = conn.cursor()
        arg = [self.getfechaActual(), self.getDescripcion()]
        myCursor.callproc('insertar_registro', arg)
        conn.commit()
        except Exception as e:
            print("Se produjo el siguiente error al guardar: ", e)
        finally:
            myCursor.close()
            conn.close()

Within the list I call the methods getfechaActual () and getDescription () which are the parameters I need to save in my bbdd. But it does not work for me.

Methods getfechaActual () and getDescription ()

def getfechaActual(self):
    return self.fecha_Y_Hs

def getDescripcion(self):
    return self.descripcion

I need to know how I can declare my attributes correctly so that I can then pass the necessary parameters to be stored in the bbdd. So then from another method call save () .

For example:

def nombre_metodo(param):

    if condicion:
       ...
       guardar()

The same thing in Java is done setting the Get And Setter but here I do not know how to do it since I'm raw on the subject, I'm missing a blow from a strong oven. Thanks again.