Added TypeAlias

.pre-commit-config.yaml

@@ -28,7 +28,7 @@ repos:
         types_or: [python, pyi]
         additional_dependencies: [black==23.1.0]
 -   repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: v0.0.259
+    rev: v0.0.261
     hooks:
     -   id: ruff
         args: [--exit-non-zero-on-fix]
@@ -40,13 +40,13 @@ repos:
         pass_filenames: true
         require_serial: false
 -   repo: https://github.com/codespell-project/codespell
-    rev: v2.2.2
+    rev: v2.2.4
     hooks:
     -   id: codespell
         types_or: [python, rst, markdown, cython, c]
         additional_dependencies: [tomli]
 -   repo: https://github.com/MarcoGorelli/cython-lint
-    rev: v0.12.5
+    rev: v0.15.0
     hooks:
     -   id: cython-lint
     -   id: double-quote-cython-strings
@@ -79,12 +79,12 @@ repos:
             '--filter=-readability/casting,-runtime/int,-build/include_subdir,-readability/fn_size'
         ]
 -   repo: https://github.com/pycqa/pylint
-    rev: v2.16.2
+    rev: v3.0.0a6
     hooks:
     -   id: pylint
         stages: [manual]
 -   repo: https://github.com/pycqa/pylint
-    rev: v2.16.2
+    rev: v3.0.0a6
     hooks:
     -   id: pylint
         alias: redefined-outer-name

pandas/_libs/lib.pyi

@@ -12,6 +12,7 @@ from typing import (
 )
 
 import numpy as np
+from typing_extensions import TypeAlias
 
 from pandas._libs.interval import Interval
 from pandas._libs.tslibs import Period
@@ -23,15 +24,15 @@ from pandas._typing import (
 )
 
 # placeholder until we can specify np.ndarray[object, ndim=2]
-ndarray_obj_2d = np.ndarray
+ndarray_obj_2d: TypeAlias = np.ndarray
 
 from enum import Enum
 
 class _NoDefault(Enum):
     no_default = ...
 
-no_default: Final = _NoDefault.no_default
-NoDefault = Literal[_NoDefault.no_default]
+no_default: Final[TypeAlias] = ...
+NoDefault: TypeAlias = Literal[_NoDefault.no_default]
 
 i8max: int
 u8max: int

pandas/_libs/ops.pyi

@@ -7,11 +7,12 @@ from typing import (
 )
 
 import numpy as np
+from typing_extensions import TypeAlias
 
 from pandas._typing import npt
 
-_BinOp = Callable[[Any, Any], Any]
-_BoolOp = Callable[[Any, Any], bool]
+_BinOp: TypeAlias = Callable[[Any, Any], Any]
+_BoolOp: TypeAlias = Callable[[Any, Any], bool]
 
 def scalar_compare(
     values: np.ndarray,  # object[:]

pandas/_libs/properties.pyi

@@ -3,6 +3,8 @@ from typing import (
     overload,
 )
 
+from typing_extensions import TypeAlias
+
 from pandas._typing import (
     AnyArrayLike,
     DataFrame,
@@ -13,7 +15,7 @@ from pandas._typing import (
 # note: this is a lie to make type checkers happy (they special
 # case property). cache_readonly uses attribute names similar to
 # property (fget) but it does not provide fset and fdel.
-cache_readonly = property
+cache_readonly: TypeAlias = property
 
 class AxisProperty:
     axis: int

pandas/_libs/tslibs/nattype.pyi

@@ -5,14 +5,17 @@ from datetime import (
 )
 
 import numpy as np
+from typing_extensions import TypeAlias
 
 from pandas._libs.tslibs.period import Period
 
 NaT: NaTType
 iNaT: int
 nat_strings: set[str]
 
-_NaTComparisonTypes = datetime | timedelta | Period | np.datetime64 | np.timedelta64
+_NaTComparisonTypes: TypeAlias = (
+    datetime | timedelta | Period | np.datetime64 | np.timedelta64
+)
 
 class _NatComparison:
     def __call__(self, other: _NaTComparisonTypes) -> bool: ...

pandas/_libs/tslibs/offsets.pyi

@@ -11,6 +11,7 @@ from typing import (
 )
 
 import numpy as np
+from typing_extensions import TypeAlias
 
 from pandas._libs.tslibs.nattype import NaTType
 from pandas._typing import (
@@ -262,12 +263,12 @@ class CustomBusinessMonthBegin(_CustomBusinessMonth): ...
 class OffsetMeta(type): ...
 class DateOffset(RelativeDeltaOffset, metaclass=OffsetMeta): ...
 
-BDay = BusinessDay
-BMonthEnd = BusinessMonthEnd
-BMonthBegin = BusinessMonthBegin
-CBMonthEnd = CustomBusinessMonthEnd
-CBMonthBegin = CustomBusinessMonthBegin
-CDay = CustomBusinessDay
+BDay: TypeAlias = BusinessDay
+BMonthEnd: TypeAlias = BusinessMonthEnd
+BMonthBegin: TypeAlias = BusinessMonthBegin
+CBMonthEnd: TypeAlias = CustomBusinessMonthEnd
+CBMonthBegin: TypeAlias = CustomBusinessMonthBegin
+CDay: TypeAlias = CustomBusinessDay
 
 def roll_qtrday(
     other: datetime, n: int, month: int, day_opt: str, modby: int

pandas/_libs/tslibs/timedeltas.pyi

@@ -7,6 +7,7 @@ from typing import (
 )
 
 import numpy as np
+from typing_extensions import TypeAlias
 
 from pandas._libs.tslibs import (
     NaTType,
@@ -19,7 +20,7 @@ from pandas._typing import (
 
 # This should be kept consistent with the keys in the dict timedelta_abbrevs
 # in pandas/_libs/tslibs/timedeltas.pyx
-UnitChoices = Literal[
+UnitChoices: TypeAlias = Literal[
     "Y",
     "y",
     "M",

pandas/tests/io/excel/test_readers.py

@@ -808,7 +808,9 @@ def test_bad_sheetname_raises(self, read_ext, sheet_name):
     def test_missing_file_raises(self, read_ext):
         bad_file = f"foo{read_ext}"
         # CI tests with other languages, translates to "No such file or directory"
-        match = r"(No such file or directory|没有那个文件或目录|File o directory non esistente)"
+        match = (
+            r"(No such file or directory|没有那个文件或目录|" r"File o directory non esistente)"
+        )
         with pytest.raises(FileNotFoundError, match=match):
             pd.read_excel(bad_file)
 

pandas/tests/io/formats/test_format.py

@@ -2205,18 +2205,22 @@ def test_east_asian_unicode_series(self):
 
         # unicode index
         s = Series(["a", "bb", "CCC", "D"], index=["あ", "いい", "ううう", "ええええ"])
-        expected = "あ         a\nいい       bb\nううう     CCC\nええええ      D\ndtype: object"
+        expected = (
+            "あ         a\nいい       bb\nううう" "     CCC\nええええ      D\ndtype: object"
+        )
         assert repr(s) == expected
 
         # unicode values
         s = Series(["あ", "いい", "ううう", "ええええ"], index=["a", "bb", "c", "ddd"])
-        expected = "a         あ\nbb       いい\nc       ううう\nddd    ええええ\ndtype: object"
+        expected = (
+            "a         あ\nbb       いい\nc       " "ううう\nddd    ええええ\ndtype: object"
+        )
         assert repr(s) == expected
 
         # both
         s = Series(["あ", "いい", "ううう", "ええええ"], index=["ああ", "いいいい", "う", "えええ"])
         expected = (
-            "ああ         あ\nいいいい      いい\nう        ううう\nえええ     ええええ\ndtype: object"
+            "ああ         あ\nいいいい      いい\nう        " "ううう\nえええ     ええええ\ndtype: object"
         )
         assert repr(s) == expected
 

pandas/tests/io/xml/test_xml.py

@@ -454,11 +454,15 @@ def test_file_charset(datapath, parser):
                 "問 既破性申假 亦應但破有申無 若有無兩洗 亦應性假雙破耶",
             ],
             "答": [
-                "答  邪既無量 正亦多途  大略為言不出二種 謂有得與無得 有得是邪須破 無得是正須申\n\t\t故",
+                ("答  邪既無量 正亦多途  大略為言不出二種 " "謂有得與無得 有得是邪須破 無得是正須申\n\t\t故"),
                 None,
                 "答  不例  有無皆是性 所以須雙破 既分性假異 故有破不破",
             ],
-            "a": [None, "答 性執是有得 假名是無得  今破有得申無得 即是破性執申假名也", None],
+            "a": [
+                None,
+                "答 性執是有得 假名是無得  今破有得申無得 即是破性執申假名也",
+                None,
+            ],
         }
     )
 

pyproject.toml

@@ -284,6 +284,8 @@ ignore = [
   "PLR2004",
   # Consider `elif` instead of `else` then `if` to remove indentation level
   "PLR5501",
+  # Useless statement
+  "B018",
 ]
 
 exclude = [

typings/numba.pyi

@@ -39,5 +39,5 @@ def jit(
     parallel: bool = ...,
 ) -> Callable[[F], F]: ...
 
-njit = jit
-generated_jit = jit
+njit = ...
+generated_jit = ...