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Improve itertools.islice type (#610)

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`stop` parameter to `islice` can be `None`,
which is important when checking with --strict-optional
This commit is contained in:
Yegor Roganov
2016-10-16 00:14:36 +03:00
committed by Guido van Rossum
parent 0c498000c4
commit 2d8ff30e7a
2 changed files with 4 additions and 4 deletions
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4
stdlib/2.7/itertools.pyi
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@@ -3,7 +3,7 @@
# Based on https://docs.python.org/2/library/itertools.html
from typing import (Iterator, TypeVar, Iterable, overload, Any, Callable, Tuple,
Union, Sequence, Generic)
Union, Sequence, Generic, Optional)
_T = TypeVar('_T')
_S = TypeVar('_S')
@@ -40,7 +40,7 @@ def groupby(iterable: Iterable[_T],
@overload
def islice(iterable: Iterable[_T], stop: int) -> Iterator[_T]: ...
@overload
def islice(iterable: Iterable[_T], start: int, stop: int,
def islice(iterable: Iterable[_T], start: int, stop: Optional[int],
step: int = ...) -> Iterator[_T]: ...
_T1 = TypeVar('_T1')

4
stdlib/3/itertools.pyi
View File

@@ -3,7 +3,7 @@
# Based on http://docs.python.org/3.2/library/itertools.html
from typing import (Iterator, TypeVar, Iterable, overload, Any, Callable, Tuple,
Union, Sequence, Generic)
Union, Sequence, Generic, Optional)
_T = TypeVar('_T')
_S = TypeVar('_S')
@@ -41,7 +41,7 @@ def groupby(iterable: Iterable[_T],
@overload
def islice(iterable: Iterable[_T], stop: int) -> Iterator[_T]: ...
@overload
def islice(iterable: Iterable[_T], start: int, stop: int,
def islice(iterable: Iterable[_T], start: int, stop: Optional[int],
step: int = ...) -> Iterator[_T]: ...
def starmap(func: Any, iterable: Iterable[Any]) -> Iterator[Any]: ...