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//usr/local/lib/python3.9/test/dataclass_module_2_str.py
from __future__ import annotations USING_STRINGS = True # dataclass_module_2.py and dataclass_module_2_str.py are identical # except only the latter uses string annotations. from dataclasses import dataclass, InitVar from typing import ClassVar T_CV2 = ClassVar[int] T_CV3 = ClassVar T_IV2 = InitVar[int] T_IV3 = InitVar @dataclass class CV: T_CV4 = ClassVar cv0: ClassVar[int] = 20 cv1: ClassVar = 30 cv2: T_CV2 cv3: T_CV3 not_cv4: T_CV4 # When using string annotations, this field is not recognized as a ClassVar. @dataclass class IV: T_IV4 = InitVar iv0: InitVar[int] iv1: InitVar iv2: T_IV2 iv3: T_IV3 not_iv4: T_IV4 # When using string annotations, this field is not recognized as an InitVar.