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Mark ReadOnlyDict with @final #142059

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Apr 2, 2025
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Mark ReadOnlyDict with @final #142059

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3 changes: 2 additions & 1 deletion homeassistant/util/read_only_dict.py
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Original file line number Diff line number Diff line change
@@ -1,14 +1,15 @@
"""Read only dictionary."""

from copy import deepcopy
from typing import Any
from typing import Any, final


def _readonly(*args: Any, **kwargs: Any) -> Any:
"""Raise an exception when a read only dict is modified."""
raise RuntimeError("Cannot modify ReadOnlyDict")


@final # Final to allow direct checking of the type instead of using isinstance
class ReadOnlyDict[_KT, _VT](dict[_KT, _VT]):
"""Read only version of dict that is compatible with dict types."""

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