Arduino doorbell with LED display

I have no experience with the arduino hardware. I have experience with the python languange, but I don't know if I can do the following with python. If not i will have to learn the arduino language. I would like to do a type of doorbell, but instead of the regular doorbell, I would like to have a keypad. So let say my parents come to my house, they are going to have their own code. If they type the code, it will display 'your parent are the door'. I would like to know where to start and what type of hardware do I need. I like to have the display to be kind of big, not the little ones. Thanks in advance.