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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.
17 lines
592 B
Python
17 lines
592 B
Python
from _typeshed import SupportsItems
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from typing import Generic, Iterable, Optional, Tuple, TypeVar
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_T = TypeVar("_T")
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class TopologicalSorter(Generic[_T]):
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def __init__(self, graph: Optional[SupportsItems[_T, Iterable[_T]]] = ...) -> None: ...
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def add(self, node: _T, *predecessors: _T) -> None: ...
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def prepare(self) -> None: ...
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def is_active(self) -> bool: ...
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def __bool__(self) -> bool: ...
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def done(self, *nodes: _T) -> None: ...
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def get_ready(self) -> Tuple[_T, ...]: ...
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def static_order(self) -> Iterable[_T]: ...
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class CycleError(ValueError): ...
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