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typeshed/stdlib/2.7/functools.pyi
Jakub Stasiak 0edb87fc6b Make functools.cmp_to_key more realistic (#458)
The documentation[1] says:

    A comparison function is any callable that accept two arguments,
    compares them, and returns a negative number for less-than, zero for
    equality, or a positive number for greater-than.

This doesn't seem possible with the comparison function defined as
returning bool.

[1] https://docs.python.org/3.6/library/functools.html#functools.cmp_to_key
2016-08-10 12:12:52 -07:00

35 lines
1.3 KiB
Python

# Stubs for functools (Python 2.7)
# NOTE: These are incomplete!
from abc import ABCMeta, abstractmethod
from typing import Any, Callable, Generic, Dict, Iterable, Optional, Sequence, Tuple, TypeVar, overload
from collections import namedtuple
_AnyCallable = Callable[..., Any]
_T = TypeVar("_T")
_S = TypeVar("_S")
@overload
def reduce(function: Callable[[_T, _T], _T],
sequence: Iterable[_T]) -> _T: ...
@overload
def reduce(function: Callable[[_T, _S], _T],
sequence: Iterable[_S], initial: _T) -> _T: ...
WRAPPER_ASSIGNMENTS = ... # type: Sequence[str]
WRAPPER_UPDATES = ... # type: Sequence[str]
def update_wrapper(wrapper: _AnyCallable, wrapped: _AnyCallable, assigned: Sequence[str] = ...,
updated: Sequence[str] = ...) -> None: ...
def wraps(wrapped: _AnyCallable, assigned: Sequence[str] = ..., updated: Sequence[str] = ...) -> Callable[[_AnyCallable], _AnyCallable]: ...
def total_ordering(cls: type) -> type: ...
def cmp_to_key(mycmp: Callable[[_T, _T], int]) -> Callable[[_T], Any]: ...
class partial(Generic[_T]):
func = ... # Callable[..., _T]
args = ... # type: Tuple[Any, ...]
keywords = ... # type: Dict[str, Any]
def __init__(self, func: Callable[..., _T], *args: Any, **kwargs: Any) -> None: ...
def __call__(self, *args: Any, **kwargs: Any) -> _T: ...