8000 stdlib: add overloads fot itertools.product() up to an arity of 15 · python/typeshed@4e69fa4 · GitHub
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muxator
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stdlib: add overloads fot itertools.product() up to an arity of 15
Before this change, the maximum usable arity for itertools.product() was 10 (increased in 2e83e65, #12023, which raised it from 6 to 10). Fixes #13490, albeit partially: just based on this change, a user has no way of knowing if he is hitting this limit or not. This discoverability problem will probably be best addressed with changes in documentation or in the type checkers.
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‎stdlib/itertools.pyi

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@@ -22,6 +22,11 @@ _T7 = TypeVar("_T7")
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_T8 = TypeVar("_T8")
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_T9 = TypeVar("_T9")
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_T10 = TypeVar("_T10")
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_T11 = TypeVar("_T11")
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_T12 = TypeVar("_T12")
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_T13 = TypeVar("_T13")
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_T14 = TypeVar("_T14")
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_T15 = TypeVar("_T15")
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_Step: TypeAlias = SupportsFloat | SupportsInt | SupportsIndex | SupportsComplex
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@@ -273,6 +278,96 @@ class product(Generic[_T_co]):
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/,
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) -> product[tuple[_T1, _T2, _T3, _T4, _T5, _T6, _T7, _T8, _T9, _T10]]: ...
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@overload
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def __new__(
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cls,
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iter1: Iterable[_T1],
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iter2: Iterable[_T2],
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iter3: Iterable[_T3],
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iter4: Iterable[_T4],
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iter5: Iterable[_T5],
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iter6: Iterable[_T6],
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iter7: Iterable[_T7],
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iter8: Iterable[_T8],
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iter9: Iterable[_T9],
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iter10: Iterable[_T10],
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iter11: Iterable[_T11],
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/,
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) -> product[tuple[_T1, _T2, _T3, _T4, _T5, _T6, _T7, _T8, _T9, _T10, _T11]]: ...
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@overload
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def __new__(
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cls,
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iter1: Iterable[_T1],
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iter2: Iterable[_T2],
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iter3: Iterable[_T3],
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iter4: Iterable[_T4],
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iter5: Iterable[_T5],
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iter6: Iterable[_T6],
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iter7: Iterable[_T7],
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iter8: Iterable[_T8],
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iter9: Iterable[_T9],
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iter10: Iterable[_T10],
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iter11: Iterable[_T11],
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iter12: Iterable[_T12],
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/,
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) -> product[tuple[_T1, _T2, _T3, _T4, _T5, _T6, _T7, _T8, _T9, _T10, _T11, _T12]]: ...
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@overload
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def __new__(
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cls,
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iter1: Iterable[_T1],
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iter2: Iterable[_T2],
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iter3: Iterable[_T3],
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iter4: Iterable[_T4],
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iter5: Iterable[_T5],
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iter6: Iterable[_T6],
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iter7: Iterable[_T7],
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iter8: Iterable[_T8],
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iter9: Iterable[_T9],
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iter10: Iterable[_T10],
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iter11: Iterable[_T11],
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iter12: Iterable[_T12],
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iter13: Iterable[_T13],
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/,
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) -> product[tuple[_T1, _T2, _T3, _T4, _T5, _T6, _T7, _T8, _T9, _T10, _T11, _T12, _T13]]: ...
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@overload
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def __new__(
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cls,
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iter1: Iterable[_T1],
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iter2: Iterable[_T2],
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iter3: Iterable[_T3],
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iter4: Iterable[_T4],
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iter5: Iterable[_T5],
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iter6: Iterable[_T6],
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iter7: Iterable[_T7],
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iter8: Iterable[_T8],
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iter9: Iterable[_T9],
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iter10: Iterable[_T10],
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iter11: Iterable[_T11],
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iter12: Iterable[_T12],
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iter13: Iterable[_T13],
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iter14: Iterable[_T14],
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/,
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) -> product[tuple[_T1, _T2, _T3, _T4, _T5, _T6, _T7, _T8, _T9, _T10, _T11, _T12, _T13, _T14]]: ...
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@overload
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def __new__(
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cls,
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iter1: Iterable[_T1],
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iter2: Iterable[_T2],
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iter3: Iterable[_T3],
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iter4: Iterable[_T4],
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iter5: Iterable[_T5],
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iter6: Iterable[_T6],
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iter7: Iterable[_T7],
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iter8: Iterable[_T8],
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iter9: Iterable[_T9],
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iter10: Iterable[_T10],
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iter11: Iterable[_T11],
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iter12: Iterable[_T12],
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iter13: Iterable[_T13],
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iter14: Iterable[_T14],
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iter15: Iterable[_T15],
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/,
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) -> product[tuple[_T1, _T2, _T3, _T4, _T5, _T6, _T7, _T8, _T9, _T10, _T11, _T12, _T13, _T14, _T15]]: ...
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@overload
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def __new__(cls, *iterables: Iterable[_T1], repeat: int = 1) -> product[tuple[_T1, ...]]: ...
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def __iter__(self) -> Self: ...
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def __next__(self) -> _T_co: ...

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