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_typeshed: add SupportsLessThan, SupportsLessThanT (#4711)

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And use it everywhere. Note there seemed to be a discrepancy between
heapq in Python 2 and 3, so I changed that. It should probably be more
widely used within heapq, but leaving that out of scope for this PR.

Co-authored-by: hauntsaninja <>
This commit is contained in:
Shantanu
2020-10-25 15:04:43 -07:00
committed by GitHub
parent 8d4a4f9e74
commit 1dd1b701c9
8 changed files with 37 additions and 51 deletions
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42
stdlib/3/builtins.pyi
View File

@@ -8,6 +8,8 @@ from _typeshed import (
OpenTextMode,
ReadableBuffer,
SupportsKeysAndGetItem,
SupportsLessThan,
SupportsLessThanT,
SupportsWrite,
)
from abc import ABCMeta
@@ -67,9 +69,6 @@ class _SupportsIndex(Protocol):
class _SupportsTrunc(Protocol):
def __trunc__(self) -> int: ...
class _SupportsLessThan(Protocol):
def __lt__(self, __other: Any) -> bool: ...
_T = TypeVar("_T")
_T_co = TypeVar("_T_co", covariant=True)
_KT = TypeVar("_KT")
@@ -81,7 +80,6 @@ _T3 = TypeVar("_T3")
_T4 = TypeVar("_T4")
_T5 = TypeVar("_T5")
_TT = TypeVar("_TT", bound="type")
_SupportsLessThanT = TypeVar("_SupportsLessThanT", bound=_SupportsLessThan)
_TBE = TypeVar("_TBE", bound="BaseException")
class object:
@@ -714,9 +712,9 @@ class list(MutableSequence[_T], Generic[_T]):
def remove(self, __value: _T) -> None: ...
def reverse(self) -> None: ...
@overload
def sort(self: List[_SupportsLessThanT], *, key: None = ..., reverse: bool = ...) -> None: ...
def sort(self: List[SupportsLessThanT], *, key: None = ..., reverse: bool = ...) -> None: ...
@overload
def sort(self, *, key: Callable[[_T], _SupportsLessThan], reverse: bool = ...) -> None: ...
def sort(self, *, key: Callable[[_T], SupportsLessThan], reverse: bool = ...) -> None: ...
def __len__(self) -> int: ...
def __iter__(self) -> Iterator[_T]: ...
def __str__(self) -> str: ...
@@ -1024,32 +1022,32 @@ def map(
) -> Iterator[_S]: ...
@overload
def max(
__arg1: _SupportsLessThanT, __arg2: _SupportsLessThanT, *_args: _SupportsLessThanT, key: None = ...
) -> _SupportsLessThanT: ...
__arg1: SupportsLessThanT, __arg2: SupportsLessThanT, *_args: SupportsLessThanT, key: None = ...
) -> SupportsLessThanT: ...
@overload
def max(__arg1: _T, __arg2: _T, *_args: _T, key: Callable[[_T], _SupportsLessThanT]) -> _T: ...
def max(__arg1: _T, __arg2: _T, *_args: _T, key: Callable[[_T], SupportsLessThanT]) -> _T: ...
@overload
def max(__iterable: Iterable[_SupportsLessThanT], *, key: None = ...) -> _SupportsLessThanT: ...
def max(__iterable: Iterable[SupportsLessThanT], *, key: None = ...) -> SupportsLessThanT: ...
@overload
def max(__iterable: Iterable[_T], *, key: Callable[[_T], _SupportsLessThanT]) -> _T: ...
def max(__iterable: Iterable[_T], *, key: Callable[[_T], SupportsLessThanT]) -> _T: ...
@overload
def max(__iterable: Iterable[_SupportsLessThanT], *, key: None = ..., default: _T) -> Union[_SupportsLessThanT, _T]: ...
def max(__iterable: Iterable[SupportsLessThanT], *, key: None = ..., default: _T) -> Union[SupportsLessThanT, _T]: ...
@overload
def max(__iterable: Iterable[_T1], *, key: Callable[[_T1], _SupportsLessThanT], default: _T2) -> Union[_T1, _T2]: ...
def max(__iterable: Iterable[_T1], *, key: Callable[[_T1], SupportsLessThanT], default: _T2) -> Union[_T1, _T2]: ...
@overload
def min(
__arg1: _SupportsLessThanT, __arg2: _SupportsLessThanT, *_args: _SupportsLessThanT, key: None = ...
) -> _SupportsLessThanT: ...
__arg1: SupportsLessThanT, __arg2: SupportsLessThanT, *_args: SupportsLessThanT, key: None = ...
) -> SupportsLessThanT: ...
@overload
def min(__arg1: _T, __arg2: _T, *_args: _T, key: Callable[[_T], _SupportsLessThanT]) -> _T: ...
def min(__arg1: _T, __arg2: _T, *_args: _T, key: Callable[[_T], SupportsLessThanT]) -> _T: ...
@overload
def min(__iterable: Iterable[_SupportsLessThanT], *, key: None = ...) -> _SupportsLessThanT: ...
def min(__iterable: Iterable[SupportsLessThanT], *, key: None = ...) -> SupportsLessThanT: ...
@overload
def min(__iterable: Iterable[_T], *, key: Callable[[_T], _SupportsLessThanT]) -> _T: ...
def min(__iterable: Iterable[_T], *, key: Callable[[_T], SupportsLessThanT]) -> _T: ...
@overload
def min(__iterable: Iterable[_SupportsLessThanT], *, key: None = ..., default: _T) -> Union[_SupportsLessThanT, _T]: ...
def min(__iterable: Iterable[SupportsLessThanT], *, key: None = ..., default: _T) -> Union[SupportsLessThanT, _T]: ...
@overload
def min(__iterable: Iterable[_T1], *, key: Callable[[_T1], _SupportsLessThanT], default: _T2) -> Union[_T1, _T2]: ...
def min(__iterable: Iterable[_T1], *, key: Callable[[_T1], SupportsLessThanT], default: _T2) -> Union[_T1, _T2]: ...
@overload
def next(__i: Iterator[_T]) -> _T: ...
@overload
@@ -1209,9 +1207,9 @@ def round(number: SupportsRound[_T], ndigits: None) -> int: ...
def round(number: SupportsRound[_T], ndigits: int) -> _T: ...
def setattr(__obj: Any, __name: str, __value: Any) -> None: ...
@overload
def sorted(__iterable: Iterable[_SupportsLessThanT], *, key: None = ..., reverse: bool = ...) -> List[_SupportsLessThanT]: ...
def sorted(__iterable: Iterable[SupportsLessThanT], *, key: None = ..., reverse: bool = ...) -> List[SupportsLessThanT]: ...
@overload
def sorted(__iterable: Iterable[_T], *, key: Callable[[_T], _SupportsLessThan], reverse: bool = ...) -> List[_T]: ...
def sorted(__iterable: Iterable[_T], *, key: Callable[[_T], SupportsLessThan], reverse: bool = ...) -> List[_T]: ...
if sys.version_info >= (3, 8):
@overload

7
stdlib/3/functools.pyi
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@@ -1,4 +1,5 @@
import sys
from _typeshed import SupportsLessThan
from typing import (
Any,
Callable,
@@ -59,11 +60,7 @@ def wraps(
wrapped: _AnyCallable, assigned: Sequence[str] = ..., updated: Sequence[str] = ...
) -> Callable[[_AnyCallable], _AnyCallable]: ...
def total_ordering(cls: Type[_T]) -> Type[_T]: ...
class _SupportsLessThan(Protocol):
def __lt__(self, __other: Any) -> bool: ...
def cmp_to_key(mycmp: Callable[[_T, _T], int]) -> Callable[[_T], _SupportsLessThan]: ...
def cmp_to_key(mycmp: Callable[[_T, _T], int]) -> Callable[[_T], SupportsLessThan]: ...
class partial(Generic[_T]):
func: Callable[..., _T]

5
stdlib/3/heapq.pyi
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@@ -1,3 +1,4 @@
from _typeshed import SupportsLessThan
from typing import Any, Callable, Iterable, List, Optional, TypeVar
_T = TypeVar("_T")
@@ -8,6 +9,6 @@ def heappushpop(__heap: List[_T], __item: _T) -> _T: ...
def heapify(__heap: List[_T]) -> None: ...
def heapreplace(__heap: List[_T], __item: _T) -> _T: ...
def merge(*iterables: Iterable[_T], key: Optional[Callable[[_T], Any]] = ..., reverse: bool = ...) -> Iterable[_T]: ...
def nlargest(n: int, iterable: Iterable[_T], key: Optional[Callable[[_T], Any]] = ...) -> List[_T]: ...
def nsmallest(n: int, iterable: Iterable[_T], key: Optional[Callable[[_T], Any]] = ...) -> List[_T]: ...
def nlargest(n: int, iterable: Iterable[_T], key: Optional[Callable[[_T], SupportsLessThan]] = ...) -> List[_T]: ...
def nsmallest(n: int, iterable: Iterable[_T], key: Optional[Callable[[_T], SupportsLessThan]] = ...) -> List[_T]: ...
def _heapify_max(__x: List[_T]) -> None: ... # undocumented

11
stdlib/3/statistics.pyi
View File

@@ -1,4 +1,5 @@
import sys
from _typeshed import SupportsLessThanT
from decimal import Decimal
from fractions import Fraction
from typing import Any, Hashable, Iterable, List, Optional, Protocol, SupportsFloat, Type, TypeVar, Union
@@ -7,12 +8,6 @@ _T = TypeVar("_T")
# Most functions in this module accept homogeneous collections of one of these types
_Number = TypeVar("_Number", float, Decimal, Fraction)
# Used in median_high, median_low
class _Sortable(Protocol):
def __lt__(self, other: Any) -> bool: ...
_SortableT = TypeVar("_SortableT", bound=_Sortable)
# Used in mode, multimode
_HashableT = TypeVar("_HashableT", bound=Hashable)
@@ -28,8 +23,8 @@ if sys.version_info >= (3, 6):
def harmonic_mean(data: Iterable[_Number]) -> _Number: ...
def median(data: Iterable[_Number]) -> _Number: ...
def median_low(data: Iterable[_SortableT]) -> _SortableT: ...
def median_high(data: Iterable[_SortableT]) -> _SortableT: ...
def median_low(data: Iterable[SupportsLessThanT]) -> SupportsLessThanT: ...
def median_high(data: Iterable[SupportsLessThanT]) -> SupportsLessThanT: ...
def median_grouped(data: Iterable[_Number], interval: _Number = ...) -> _Number: ...
def mode(data: Iterable[_HashableT]) -> _HashableT: ...