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TYP: Simple type fixes for ExtensionArray #41255

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Merged
merged 12 commits into from
May 6, 2021
Merged

TYP: Simple type fixes for ExtensionArray #41255

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0568d57
TYP: Simple type fixes for ExtensionArray
Dr-Irv May 1, 2021
ca0ba55
fix fillna value default arg
Dr-Irv May 2, 2021
7e46ad2
specify args for transpose
Dr-Irv May 2, 2021
30b6dcb
update transpose and fillna to use consistent typing
Dr-Irv May 2, 2021
ee12178
undo change to transpose in core/base.py
Dr-Irv May 3, 2021
4b9bd1e
fix transpose to use axes argument
Dr-Irv May 3, 2021
488a3de
typing fix in pandas/core/base.py
Dr-Irv May 3, 2021
1a7f067
Merge remote-tracking branch 'upstream/master' into iter_contains
Dr-Irv May 3, 2021
a277cba
Merge remote-tracking branch 'upstream/master' into iter_contains
Dr-Irv May 4, 2021
5ccb62a
undo transpose changes. Use object for fillna and __contains__
Dr-Irv May 4, 2021
5332261
Merge remote-tracking branch 'upstream/master' into iter_contains
Dr-Irv May 4, 2021
c216bd9
create type for fillna arguments
Dr-Irv May 5, 2021
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7 changes: 7 additions & 0 deletions pandas/_typing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,7 @@
# https://mypy.readthedocs.io/en/latest/common_issues.html#import-cycles
if TYPE_CHECKING:
from typing import (
Literal,
TypedDict,
final,
)
Expand Down Expand Up @@ -189,6 +190,12 @@
str, int, Sequence[Union[str, int]], Mapping[Hashable, Union[str, int]]
]

# Arguments for fillna()
if TYPE_CHECKING:
FillnaOptions = Literal["backfill", "bfill", "ffill", "pad"]
else:
FillnaOptions = str

# internals
Manager = Union[
"ArrayManager", "SingleArrayManager", "BlockManager", "SingleBlockManager"
Expand Down
24 changes: 17 additions & 7 deletions pandas/core/arrays/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
TYPE_CHECKING,
Any,
Callable,
Iterator,
Sequence,
TypeVar,
cast,
Expand All @@ -24,6 +25,7 @@
from pandas._typing import (
ArrayLike,
Dtype,
FillnaOptions,
PositionalIndexer,
Shape,
)
Expand Down Expand Up @@ -69,6 +71,7 @@
)

if TYPE_CHECKING:
from typing import Literal

class ExtensionArraySupportsAnyAll("ExtensionArray"):
def any(self, *, skipna: bool = True) -> bool:
Expand Down Expand Up @@ -375,7 +378,7 @@ def __len__(self) -> int:
"""
raise AbstractMethodError(self)

def __iter__(self):
def __iter__(self) -> Iterator[Any]:
"""
Iterate over elements of the array.
"""
Expand All @@ -385,7 +388,7 @@ def __iter__(self):
for i in range(len(self)):
yield self[i]

def __contains__(self, item) -> bool | np.bool_:
def __contains__(self, item: object) -> bool | np.bool_:
"""
Return for `item in self`.
"""
Expand All @@ -400,7 +403,9 @@ def __contains__(self, item) -> bool | np.bool_:
else:
return False
else:
return (item == self).any()
# error: Item "ExtensionArray" of "Union[ExtensionArray, ndarray]" has no
# attribute "any"
return (item == self).any() # type: ignore[union-attr]

# error: Signature of "__eq__" incompatible with supertype "object"
def __eq__(self, other: Any) -> ArrayLike: # type: ignore[override]
Expand Down Expand Up @@ -680,7 +685,12 @@ def argmax(self, skipna: bool = True) -> int:
raise NotImplementedError
return nargminmax(self, "argmax")

def fillna(self, value=None, method=None, limit=None):
def fillna(
self,
value: object | ArrayLike | None = None,
method: FillnaOptions | None = None,
limit: int | None = None,
):
"""
Fill NA/NaN values using the specified method.

Expand Down Expand Up @@ -1207,7 +1217,7 @@ def _formatter(self, boxed: bool = False) -> Callable[[Any], str | None]:
# Reshaping
# ------------------------------------------------------------------------

def transpose(self, *axes) -> ExtensionArray:
def transpose(self, *axes: int) -> ExtensionArray:
"""
Return a transposed view on this array.

Expand All @@ -1220,7 +1230,7 @@ def transpose(self, *axes) -> ExtensionArray:
def T(self) -> ExtensionArray:
return self.transpose()

def ravel(self, order="C") -> ExtensionArray:
def ravel(self, order: Literal["C", "F", "A", "K"] | None = "C") -> ExtensionArray:
"""
Return a flattened view on this array.

Expand Down Expand Up @@ -1294,7 +1304,7 @@ def _reduce(self, name: str, *, skipna: bool = True, **kwargs):
"""
raise TypeError(f"cannot perform {name} with type {self.dtype}")

def __hash__(self):
def __hash__(self) -> int:
raise TypeError(f"unhashable type: {repr(type(self).__name__)}")

# ------------------------------------------------------------------------
Expand Down
17 changes: 9 additions & 8 deletions pandas/core/frame.py
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,7 @@
CompressionOptions,
Dtype,
FilePathOrBuffer,
FillnaOptions,
FloatFormatType,
FormattersType,
FrameOrSeriesUnion,
Expand Down Expand Up @@ -5015,7 +5016,7 @@ def rename(
def fillna(
self,
value=...,
method: str | None = ...,
method: FillnaOptions | None = ...,
axis: Axis | None = ...,
inplace: Literal[False] = ...,
limit=...,
Expand All @@ -5027,7 +5028,7 @@ def fillna(
def fillna(
self,
value,
method: str | None,
method: FillnaOptions | None,
axis: Axis | None,
inplace: Literal[True],
limit=...,
Expand Down Expand Up @@ -5060,7 +5061,7 @@ def fillna(
def fillna(
self,
*,
method: str | None,
method: FillnaOptions | None,
inplace: Literal[True],
limit=...,
downcast=...,
Expand All @@ -5082,7 +5083,7 @@ def fillna(
def fillna(
self,
*,
method: str | None,
method: FillnaOptions | None,
axis: Axis | None,
inplace: Literal[True],
limit=...,
Expand All @@ -5106,7 +5107,7 @@ def fillna(
def fillna(
self,
value,
method: str | None,
method: FillnaOptions | None,
*,
inplace: Literal[True],
limit=...,
Expand All @@ -5118,7 +5119,7 @@ def fillna(
def fillna(
self,
value=...,
method: str | None = ...,
method: FillnaOptions | None = ...,
axis: Axis | None = ...,
inplace: bool = ...,
limit=...,
Expand All @@ -5129,8 +5130,8 @@ def fillna(
@doc(NDFrame.fillna, **_shared_doc_kwargs)
def fillna(
self,
value=None,
method: str | None = None,
value: object | ArrayLike | None = None,
method: FillnaOptions | None = None,
axis: Axis | None = None,
inplace: bool = False,
limit=None,
Expand Down
17 changes: 9 additions & 8 deletions pandas/core/series.py
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@
Axis,
Dtype,
DtypeObj,
FillnaOptions,
FrameOrSeriesUnion,
IndexKeyFunc,
NpDtype,
Expand Down Expand Up @@ -4594,7 +4595,7 @@ def drop(
def fillna(
self,
value=...,
method: str | None = ...,
method: FillnaOptions | None = ...,
axis: Axis | None = ...,
inplace: Literal[False] = ...,
limit=...,
Expand All @@ -4606,7 +4607,7 @@ def fillna(
def fillna(
self,
value,
method: str | None,
method: FillnaOptions | None,
axis: Axis | None,
inplace: Literal[True],
limit=...,
Expand Down Expand Up @@ -4639,7 +4640,7 @@ def fillna(
def fillna(
self,
*,
method: str | None,
method: FillnaOptions | None,
inplace: Literal[True],
limit=...,
downcast=...,
Expand All @@ -4661,7 +4662,7 @@ def fillna(
def fillna(
self,
*,
method: str | None,
method: FillnaOptions | None,
axis: Axis | None,
inplace: Literal[True],
limit=...,
Expand All @@ -4685,7 +4686,7 @@ def fillna(
def fillna(
self,
value,
method: str | None,
method: FillnaOptions | None,
*,
inplace: Literal[True],
limit=...,
Expand All @@ -4697,7 +4698,7 @@ def fillna(
def fillna(
self,
value=...,
method: str | None = ...,
method: FillnaOptions | None = ...,
axis: Axis | None = ...,
inplace: bool = ...,
limit=...,
Expand All @@ -4709,8 +4710,8 @@ def fillna(
@doc(NDFrame.fillna, **_shared_doc_kwargs) # type: ignore[has-type]
def fillna(
self,
value=None,
method=None,
value: object | ArrayLike | None = None,
method: FillnaOptions | None = None,
axis=None,
inplace=False,
limit=None,
Expand Down