Dunder methods: `__str__` vs `__repr__`, `__new__` vs `__init__`:

In Simple Words:

• __str__: User-friendly readable string for end users.
• __repr__: Unambiguous string for developers and debugging (eval(repr(obj)) == obj).
• __new__: Allocates and returns the new instance in memory (used in Singletons and immutable types).
• __init__: Initializes the newly created instance attributes.

class User:
    def __init__(self, name: str, id: int):
        self.name = name
        self.id = id

    def __str__(self):
        return self.name

    def __repr__(self):
        return f"User(name={self.name!r}, id={self.id})"