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bisect: Allow sequences without __len__ when hi is explicitly provided #15493

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Merged
srittau merged 1 commit into from
Mar 7, 2026
Merged

bisect: Allow sequences without __len__ when hi is explicitly provided #15493

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58 changes: 57 additions & 1 deletion stdlib/_bisect.pyi
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import sys
from _typeshed import SupportsLenAndGetItem, SupportsRichComparisonT
from _typeshed import SupportsGetItem, SupportsLenAndGetItem, SupportsRichComparisonT
from collections.abc import Callable, MutableSequence
from typing import TypeVar, overload

Expand All @@ -16,6 +16,14 @@ if sys.version_info >= (3, 10):
key: None = None,
) -> int: ...
@overload
def bisect_left(
a: SupportsGetItem[int, SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int, hi: int, *, key: None = None
) -> int: ...
@overload
def bisect_left(
a: SupportsGetItem[int, SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, *, hi: int, key: None = None
) -> int: ...
@overload
def bisect_left(
a: SupportsLenAndGetItem[_T],
x: SupportsRichComparisonT,
Expand All @@ -25,6 +33,19 @@ if sys.version_info >= (3, 10):
key: Callable[[_T], SupportsRichComparisonT],
) -> int: ...
@overload
def bisect_left(
a: SupportsGetItem[int, _T], x: SupportsRichComparisonT, lo: int, hi: int, *, key: Callable[[_T], SupportsRichComparisonT]
) -> int: ...
@overload
def bisect_left(
a: SupportsGetItem[int, _T],
x: SupportsRichComparisonT,
lo: int = 0,
*,
hi: int,
key: Callable[[_T], SupportsRichComparisonT],
) -> int: ...
@overload
def bisect_right(
a: SupportsLenAndGetItem[SupportsRichComparisonT],
x: SupportsRichComparisonT,
Expand All @@ -34,6 +55,14 @@ if sys.version_info >= (3, 10):
key: None = None,
) -> int: ...
@overload
def bisect_right(
a: SupportsGetItem[int, SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int, hi: int, *, key: None = None
) -> int: ...
@overload
def bisect_right(
a: SupportsGetItem[int, SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, *, hi: int, key: None = None
) -> int: ...
@overload
def bisect_right(
a: SupportsLenAndGetItem[_T],
x: SupportsRichComparisonT,
Expand All @@ -43,6 +72,19 @@ if sys.version_info >= (3, 10):
key: Callable[[_T], SupportsRichComparisonT],
) -> int: ...
@overload
def bisect_right(
a: SupportsGetItem[int, _T], x: SupportsRichComparisonT, lo: int, hi: int, *, key: Callable[[_T], SupportsRichComparisonT]
) -> int: ...
@overload
def bisect_right(
a: SupportsGetItem[int, _T],
x: SupportsRichComparisonT,
lo: int = 0,
*,
hi: int,
key: Callable[[_T], SupportsRichComparisonT],
) -> int: ...
@overload
def insort_left(
a: MutableSequence[SupportsRichComparisonT],
x: SupportsRichComparisonT,
Expand Down Expand Up @@ -70,12 +112,26 @@ if sys.version_info >= (3, 10):
) -> None: ...

else:
@overload
def bisect_left(
a: SupportsLenAndGetItem[SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, hi: int | None = None
) -> int: ...
@overload
def bisect_left(a: SupportsGetItem[int, SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int, hi: int) -> int: ...
@overload
def bisect_left(
a: SupportsGetItem[int, SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, *, hi: int
) -> int: ...
@overload
def bisect_right(
a: SupportsLenAndGetItem[SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, hi: int | None = None
) -> int: ...
@overload
def bisect_right(a: SupportsGetItem[int, SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int, hi: int) -> int: ...
@overload
def bisect_right(
a: SupportsGetItem[int, SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, *, hi: int
) -> int: ...
def insort_left(
a: MutableSequence[SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, hi: int | None = None
) -> None: ...
Expand Down