from collections import OrderedDict
from enum import Enum


class DictLike:
    def __init__(self):
        self._keys = iter("a")

    def __iter__(self):
        return self

    def __next__(self) -> str:
        return next(self._keys)

    def __getitem__(self, key: str) -> str:
        return key


repro_py_line19 = Enum("", {"a": "a"})                                   # ok.
repro_py_line20 = Enum("", dict(a="a"))                                  # error but there is TODO comment.
repro_py_line21 = Enum("", {k: v for k, v in ["aa"]})                    # error because of DictionaryComprehension.
repro_py_line22 = Enum("", {s: s for s in "a"})                          # error but not sure if DictionaryComprehension also covers this format.
repro_py_line23 = Enum("", {s: s for s in map(str.strip, ["  a  \n"])})  # error but not sure if typing this is technically possible.
repro_py_line24 = Enum("", OrderedDict(a="a"))                           # error against Enum's duck typing??
repro_py_line25 = Enum("", DictLike())                                   # error against Enum's duck typing.