Writing a python program related to data retrieval?

Question

Python

I welcome everyone. I immediately apologize if I asked a stupid question, the answer of which can be found in Google, because I could not formulate the idea correctly and find the relevant topics.
I am new to programming, my first language is python, I learned the basics, I have basic knowledge.
I want to write a program purely for myself, the essence of which is to search for a specific person and his data.
I describe briefly how it should work:
I write the name in the field: Alexey Romanov. If the given name is in the tuple, then it gives me its data: age, address. If not, then it gives the opportunity to enter its data so that it is saved.
Is it possible to implement this as a beginner? What is required for this. I do not ask me to write a program from and to, I want to try it myself. I would like some guidance on how to do it right. Do you need a database for this or can you do without it?

Answer 1

Something like lists?
https://metanit.com/python/tutorial/3.1.php