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Better type return value of json.detect_encoding #15609

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Better type return value of json.detect_encoding #15609

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Better type return value of `json.detect_encoding`
jonathandung Apr 5, 2026
7dc38e4
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Apr 5, 2026
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6 changes: 4 additions & 2 deletions stdlib/json/__init__.pyi
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
from _typeshed import SupportsRead, SupportsWrite
from collections.abc import Callable
from typing import Any
from typing import Any, Literal

from .decoder import JSONDecodeError as JSONDecodeError, JSONDecoder as JSONDecoder
from .encoder import JSONEncoder as JSONEncoder
Expand Down Expand Up @@ -58,4 +58,6 @@ def load(
object_pairs_hook: Callable[[list[tuple[Any, Any]]], Any] | None = None,
**kwds: Any,
) -> Any: ...
def detect_encoding(b: bytes | bytearray) -> str: ... # undocumented
def detect_encoding(
b: bytes | bytearray,
) -> Literal["utf-8", "utf-8-sig", "utf-16", "utf-16-be", "utf-16-le", "utf-32", "utf-32-be", "utf-32-le"]: ... # undocumented