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Merge pull request #40 from rmcgibbo/lru_cache

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Enhance type information for lru_cache
This commit is contained in:
Matthias Kramm
2016-01-11 05:55:32 -08:00
parent 87bc00eb2a a40418ed7b
commit 129bf57659
1 changed files with 16 additions and 4 deletions
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20
stdlib/3/functools.pyi
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@@ -3,7 +3,7 @@
# NOTE: These are incomplete!
from abc import ABCMeta, abstractmethod
from typing import Any, Callable, Generic, Dict, Iterator, Optional, Sequence, Tuple, TypeVar
from typing import Any, Callable, Generic, Dict, Iterator, Optional, Sequence, Tuple, TypeVar, NamedTuple
from collections import namedtuple
_AnyCallable = Callable[..., Any]
@@ -12,9 +12,21 @@ _T = TypeVar("_T")
def reduce(function: Callable[[_T], _T],
sequence: Iterator[_T], initial: Optional[_T] = ...) -> _T: ...
# TODO implement as class; more precise typing
# TODO cache_info and __wrapped__ attributes
def lru_cache(maxsize: Optional[int] = ...) -> Callable[[Any], Any]: ...
class CacheInfo(NamedTuple('CacheInfo', [
('hits', int), ('misses', int), ('maxsize', int), ('currsize', int)])):
pass
class _lru_cache_wrapper(Generic[_T]):
__wrapped__ = ... # type: Callable[..., _T]
def __call__(self, *args: Any, **kwargs: Any) -> _T: ...
def cache_info(self) -> CacheInfo: ...
class lru_cache():
def __init__(self, maxsize: int = ..., typed: bool = ...) -> None:
pass
def __call__(self, f: Callable[..., _T]) -> _lru_cache_wrapper[_T]: ...
WRAPPER_ASSIGNMENTS = ... # type: Sequence[str]
WRAPPER_UPDATES = ... # type: Sequence[str]