VimPlug/typeshed
1
0
Fork 0
mirror of https://github.com/davidhalter/typeshed.git synced 2026-01-09 13:02:22 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Introduce Mapping-like protocols (#4325)

Browse Source 
typing.Mapping is not a protocol, which has caused problems in the past.
(E.g. python/typeshed#3569, see also python/typeshed#3576.) This
introduces a few narrow protocols to _typeshed.pyi that can be used in
place of Mapping.

Not all uses of Mapping can be replaced. For example, cgi.FieldStorage
explictly checks whether the supplied headers argument is a Mapping
instance.
This commit is contained in:
Sebastian Rittau
2020-07-12 02:11:08 +02:00
committed by GitHub
parent 028f0d5293
commit 9ad8ed3b75
3 changed files with 37 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
stdlib/3.9/graphlib.pyi
View File

@@ -1,9 +1,10 @@
from typing import Generic, Iterable, Mapping, Optional, Tuple, TypeVar
from _typeshed import SupportsItems
from typing import Generic, Iterable, Optional, Tuple, TypeVar
_T = TypeVar("_T")
class TopologicalSorter(Generic[_T]):
def __init__(self, graph: Optional[Mapping[_T, Iterable[_T]]] = ...) -> None: ...
def __init__(self, graph: Optional[SupportsItems[_T, Iterable[_T]]] = ...) -> None: ...
def add(self, node: _T, *predecessors: _T) -> None: ...
def prepare(self) -> None: ...
def is_active(self) -> bool: ...