10000 `Fraction.__new__` now accepts anything with `.as_integer_ratio()` by InSyncWithFoo · Pull Request #12994 · python/typeshed · GitHub
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Fraction.__new__ now accepts anything with .as_integer_ratio() #12994

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Merged
merged 7 commits into from
Nov 12, 2024
Merged

Fraction.__new__ now accepts anything with .as_integer_ratio() #12994

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d9b67f0
Add new overloads for `Fraction.__new__`
InSyncWithFoo Nov 11, 2024
ca25c23
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Nov 11, 2024
e7f7095
Update stdlib/fractions.pyi
InSyncWithFoo Nov 11, 2024
8ef3b4f
Fix
InSyncWithFoo Nov 11, 2024
c44d96d
Update stdlib/fractions.pyi
InSyncWithFoo Nov 12, 2024
1cb9928
Remove second overload per review
InSyncWithFoo Nov 12, 2024
ea9b6bf
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Nov 12, 2024
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16 changes: 14 additions & 2 deletions stdlib/fractions.pyi
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
import sys
from collections.abc import Callable
from collections.abc import Callable, Iterable
from decimal import Decimal
from numbers import Integral, Rational, Real
from typing import Any, Literal, SupportsIndex, overload
from typing import Any, Literal, Protocol, SupportsIndex, TypeVar, overload
from typing_extensions import Self, TypeAlias

_ComparableNum: TypeAlias = int | float | Decimal | Real
Expand All @@ -20,11 +20,23 @@ else:
@overload
def gcd(a: Integral, b: Integral) -> Integral: ...

_IR = TypeVar("_IR", covariant=True)

class ConvertibleToIntegerRatio(Protocol[_IR]):
def as_integer_ratio(self) -> _IR: ...

class Fraction(Rational):
@overload
def __new__(cls, numerator: int | Rational = 0, denominator: int | Rational | None = None) -> Self: ...
@overload
def __new__(cls, value: float | Decimal | str, /) -> Self: ...

if sys.version_info >= (3, 14):
@overload
def __new__(cls, value: ConvertibleToIntegerRatio[tuple[int | Rational, int | Rational]]) -> Self: ...
@overload
def __new__(cls, value: ConvertibleToIntegerRatio[Iterable[int | Rational]]) -> Self: ...

@classmethod
def from_float(cls, f: float) -> Self: ...
@classmethod
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