Is it possible to create an object in Python that cannot be modified after initialization?

In Python, you can create immutable objects in several ways. The simplest is to use built-in immutable types, such as tuples or strings. For your own classes, you can use:

• namedtuple from the collections module, which creates immutable objects with named fields.
• @dataclass(frozen=True) from the dataclasses module (Python 3.7+), which makes class instances immutable.
• Override class methods to prevent attribute modification after initialization.

Example with dataclass:

from dataclasses import dataclass

@dataclass(frozen=True)
class Point:
    x: int
    y: int

p = Point(1, 2)
# p.x = 3  # will raise an error: cannot assign to field 'x'

Thus, after creating an object, its fields cannot be changed.