"""Regression in astroid on ClassDef inference with two test cases. Fixed in https://github.com/pylint-dev/astroid/pull/1181""" from typing import Tuple, Type from typing import Dict, List, Any from dataclasses import dataclass, field # https://github.com/pylint-dev/pylint/issues/5030 def is_type_list(f_type: Type) -> bool: """just here to show the issue""" return f_type == list assert not is_type_list(Tuple) # https://github.com/pylint-dev/pylint/issues/5036 @dataclass class SomeData: """A dataclass.""" a_dict: Dict[str, List[str]] = field(default_factory=dict) @dataclass class SubSomeData(SomeData): """A subclass of a dataclass.""" def __init__(self, **kwargs: Dict[str, Any]) -> None: """Subclass init func.""" super().__init__(**kwargs) if "test" in self.a_dict: print(self.a_dict["test"])