Dataclass and Attributes

dataclass.py

# Explanations will further be attached.
from dataclasses import dataclass, field

@dataclass
class A:
    d: int = 3
    _e: int = 5
    _g: list = field(default_factory=list)
    def __post_init__(self):
        self._f = 6
    @property
    def e(self):
        return self._e

    @property
    def f(self):
        return self._f

    @property
    def g(self):
        return self._g

    def flush(self):
        self.__dict__ = {"d": self.d}