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Better signature for Mapping.get(). #552

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Better signature for Mapping.get(). #552

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7 changes: 5 additions & 2 deletions stdlib/2.7/UserDict.pyi
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
from typing import (Any, Container, Dict, Generic, Iterable, Iterator, List,
Mapping, Sized, Tuple, TypeVar, overload)
Mapping, Optional, Sized, Tuple, TypeVar, overload)

_KT = TypeVar('_KT')
_VT = TypeVar('_VT')
Expand All @@ -19,7 +19,10 @@ class DictMixin(Sized, Iterable[_KT], Container[_KT], Generic[_KT, _VT]):

# From typing.Mapping[_KT, _VT]
# (can't inherit because of keys())
def get(self, k: _KT, default: _VT = ...) -> _VT: ...
@overload
def get(self, k: _KT, default: Optional[None] = ...) -> Optional[_VT]: ...
@overload
def get(self, k: _KT, default: _VT) -> _VT: ...
def values(self) -> List[_VT]: ...
def items(self) -> List[Tuple[_KT, _VT]]: ...
def iterkeys(self) -> Iterator[_KT]: ...
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6 changes: 5 additions & 1 deletion stdlib/2.7/__builtin__.pyi
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Expand Up @@ -532,7 +532,11 @@ class dict(MutableMapping[_KT, _VT], Generic[_KT, _VT]):
def has_key(self, k: _KT) -> bool: ...
def clear(self) -> None: ...
def copy(self) -> Dict[_KT, _VT]: ...
def get(self, k: _KT, default: _VT = None) -> _VT: ...
@overload
def get(self, k: _KT, default: Optional[None] = ...) -> Optional[_VT]:
...
@overload
def get(self, k: _KT, default: _VT) -> _VT: ...
def pop(self, k: _KT, default: _VT = ...) -> _VT: ...
def popitem(self) -> Tuple[_KT, _VT]: ...
def setdefault(self, k: _KT, default: _VT = ...) -> _VT: ...
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6 changes: 5 additions & 1 deletion stdlib/2.7/typing.pyi
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Expand Up @@ -180,7 +180,11 @@ class Mapping(Sized, Iterable[_KT], Container[_KT], Generic[_KT, _VT_co]):
def __getitem__(self, k: _KT) -> _VT_co:
...
# Mixin methods
def get(self, k: _KT, default: _VT_co = ...) -> _VT_co: # type: ignore
@overload
def get(self, k: _KT, default: Optional[None] = ...) -> Optional[_VT_co]: # type: ignore
...
@overload # type: ignore
def get(self, k: _KT, default: _VT_co) -> _VT_co: # type: ignore
...
def keys(self) -> list[_KT]: ...
def values(self) -> list[_VT_co]: ...
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5 changes: 4 additions & 1 deletion stdlib/3/builtins.pyi
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Expand Up @@ -517,7 +517,10 @@ class dict(MutableMapping[_KT, _VT], Generic[_KT, _VT]):
def __init__(self, iterable: Iterable[Tuple[_KT, _VT]], **kwargs: _VT) -> None: ...
def clear(self) -> None: ...
def copy(self) -> Dict[_KT, _VT]: ...
def get(self, k: _KT, default: _VT = None) -> _VT: ...
@overload
def get(self, k: _KT, default: Optional[None] = ...) -> Optional[_VT]: ...
@overload
def get(self, k: _KT, default: _VT) -> _VT: ...
def pop(self, k: _KT, default: _VT = None) -> _VT: ...
def popitem(self) -> Tuple[_KT, _VT]: ...
def setdefault(self, k: _KT, default: _VT = None) -> _VT: ...
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6 changes: 5 additions & 1 deletion stdlib/3/typing.pyi
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Expand Up @@ -230,7 +230,11 @@ class Mapping(Iterable[_KT], Container[_KT], Sized, Generic[_KT, _VT_co]):
def __getitem__(self, k: _KT) -> _VT_co:
...
# Mixin methods
def get(self, k: _KT, default: _VT_co = ...) -> _VT_co: # type: ignore
@overload
def get(self, k: _KT, default: Optional[None] = ...) -> Optional[_VT_co]: # type: ignore
...
@overload # type: ignore
def get(self, k: _KT, default: _VT_co) -> _VT_co: # type: ignore
...
def items(self) -> AbstractSet[Tuple[_KT, _VT_co]]: ...
def keys(self) -> AbstractSet[_KT]: ...
Expand Down