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Add signatures for cast() and NewType #549

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Merged
gvanrossum merged 2 commits into from
Sep 14, 2016
Merged

Add signatures for cast() and NewType #549

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eb8648b
signatures for cast and NewType
elazarg Sep 14, 2016
39edaf9
2.7 too
elazarg Sep 14, 2016
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7 changes: 5 additions & 2 deletions stdlib/2.7/typing.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@ from abc import abstractmethod, ABCMeta
# Definitions of special type checking related constructs. Their definition
# are not used, so their value does not matter.

cast = object()
overload = object()
Any = object()
TypeVar = object()
Expand All @@ -15,7 +14,6 @@ Callable = object()
Type = object()
builtinclass = object()
_promote = object()
NewType = object()

# Type aliases

Expand Down Expand Up @@ -350,8 +348,13 @@ class Pattern(Generic[AnyStr]):

def get_type_hints(obj: Callable) -> dict[str, Any]: ...

def cast(tp: Type[_T], obj: Any) -> _T: ...

# Type constructors

# NamedTuple is special-cased in the type checker; the initializer is ignored.
def NamedTuple(typename: str, fields: Iterable[Tuple[str, Any]], *,
verbose: bool = ..., rename: bool = ...) -> Type[tuple]: ...

def NewType(name: str, tp: Type[_T]) -> Type[_T]: ...

7 changes: 5 additions & 2 deletions stdlib/3/typing.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@ from abc import abstractmethod, ABCMeta
# Definitions of special type checking related constructs. Their definition
# are not used, so their value does not matter.

cast = object()
overload = object()
Any = object()
TypeVar = object()
Expand All @@ -17,7 +16,6 @@ Type = object()
builtinclass = object()
_promote = object()
no_type_check = object()
NewType = object()

# Type aliases and type constructors

Expand Down Expand Up @@ -420,8 +418,13 @@ class Pattern(Generic[AnyStr]):

def get_type_hints(obj: Callable) -> dict[str, Any]: ...

def cast(tp: Type[_T], obj: Any) -> _T: ...

# Type constructors

# NamedTuple is special-cased in the type checker; the initializer is ignored.
def NamedTuple(typename: str, fields: Iterable[Tuple[str, Any]], *,
verbose: bool = ..., rename: bool = ..., module: str = None) -> Type[tuple]: ...

def NewType(name: str, tp: Type[_T]) -> Type[_T]: ...