make Self backward compatible

pyarrow-stubs/__lib_pxi/array.pyi

@@ -1,17 +1,25 @@
 # mypy: disable-error-code="overload-overlap,misc,type-arg"
 
 import datetime as dt
+import sys
 
 from collections.abc import Callable
 from decimal import Decimal
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+if sys.version_info >= (3, 10):
+    from typing import TypeAlias
+else:
+    from typing_extensions import TypeAlias
 from typing import (
     Any,
     Generic,
     Iterable,
     Iterator,
     Literal,
-    Self,
-    TypeAlias,
     TypeVar,
     overload,
 )

pyarrow-stubs/__lib_pxi/error.pyi

@@ -1,4 +1,9 @@
-from typing import Self
+import sys
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
 
 class ArrowException(Exception): ...
 class ArrowInvalid(ValueError, ArrowException): ...

pyarrow-stubs/__lib_pxi/io.pyi

@@ -1,7 +1,18 @@
+import sys
+
 from collections.abc import Callable
 from io import IOBase
 from os import PathLike
-from typing import Any, Literal, Self, SupportsIndex, TypeAlias, overload
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+if sys.version_info >= (3, 10):
+    from typing import TypeAlias
+else:
+    from typing_extensions import TypeAlias
+from typing import Any, Literal, SupportsIndex, overload
 
 from pyarrow._stubs_typing import Compression, SupportPyBuffer
 from pyarrow.lib import MemoryPool, _Weakrefable

pyarrow-stubs/__lib_pxi/ipc.pyi

@@ -1,7 +1,13 @@
 import enum
+import sys
 
 from io import IOBase
-from typing import Iterable, Iterator, Literal, Mapping, NamedTuple, Self
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+from typing import Iterable, Iterator, Literal, Mapping, NamedTuple
 
 import pandas as pd
 

pyarrow-stubs/__lib_pxi/scalar.pyi

@@ -1,9 +1,19 @@
 # mypy: disable-error-code="overload-overlap,misc,type-arg"
 import collections.abc
 import datetime as dt
+import sys
 
 from decimal import Decimal
-from typing import Any, Generic, Iterator, Mapping, Self, TypeAlias, overload
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+if sys.version_info >= (3, 10):
+    from typing import TypeAlias
+else:
+    from typing_extensions import TypeAlias
+from typing import Any, Generic, Iterator, Mapping, overload
 
 import numpy as np
 

pyarrow-stubs/__lib_pxi/table.pyi

@@ -1,8 +1,18 @@
 # mypy: disable-error-code="overload-overlap,type-arg,misc"
 
 import datetime as dt
+import sys
 
 from decimal import Decimal
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+if sys.version_info >= (3, 10):
+    from typing import TypeAlias
+else:
+    from typing_extensions import TypeAlias
 from typing import (
     Any,
     Generator,
@@ -11,9 +21,7 @@ from typing import (
     Iterator,
     Literal,
     Mapping,
-    Self,
     Sequence,
-    TypeAlias,
     TypeVar,
     overload,
 )

pyarrow-stubs/__lib_pxi/tensor.pyi

@@ -1,6 +1,11 @@
 # mypy: disable-error-code="import-untyped"
 
-from typing import Self
+import sys
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
 
 import numpy as np
 

pyarrow-stubs/__lib_pxi/types.pyi

@@ -1,8 +1,14 @@
 import datetime as dt
+import sys
 
 from collections.abc import Mapping
 from decimal import Decimal
-from typing import Any, Generic, Iterable, Iterator, Literal, Self, overload
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+from typing import Any, Generic, Iterable, Iterator, Literal, overload
 
 import numpy as np
 import pandas as pd

pyarrow-stubs/_dataset.pyi

@@ -1,4 +1,11 @@
+import sys
+
 from pathlib import Path
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
 from typing import (
     IO,
     Any,
@@ -7,7 +14,6 @@ from typing import (
     Iterator,
     Literal,
     NamedTuple,
-    Self,
     TypeVar,
     overload,
 )

pyarrow-stubs/_flight.pyi

@@ -1,7 +1,12 @@
 import asyncio
 import enum
+import sys
 
-from typing import Generator, Generic, Iterable, Iterator, NamedTuple, Self, TypeVar
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+from typing import Generator, Generic, Iterable, Iterator, NamedTuple, TypeVar
 
 from typing_extensions import deprecated
 

pyarrow-stubs/_fs.pyi

@@ -1,8 +1,18 @@
 import datetime as dt
 import enum
+import sys
 
 from abc import ABC, abstractmethod
-from typing import Self, TypeAlias, Union, overload
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+if sys.version_info >= (3, 10):
+    from typing import TypeAlias
+else:
+    from typing_extensions import TypeAlias
+from typing import Union, overload
 
 from fsspec import AbstractFileSystem
 

pyarrow-stubs/acero.pyi

@@ -1,4 +1,14 @@
-from typing import Literal, Self, TypeAlias
+import sys
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+if sys.version_info >= (3, 10):
+    from typing import TypeAlias
+else:
+    from typing_extensions import TypeAlias
+from typing import Literal
 
 from . import lib
 from .compute import Expression, FunctionOptions

pyarrow-stubs/interchange/dataframe.pyi

@@ -1,4 +1,10 @@
-from typing import Any, Iterable, Self, Sequence
+import sys
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+from typing import Any, Iterable, Sequence
 
 from pyarrow.interchange.column import _PyArrowColumn
 from pyarrow.lib import RecordBatch, Table

pyarrow-stubs/orc.pyi

@@ -1,4 +1,10 @@
-from typing import IO, Literal, Self
+import sys
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+from typing import IO, Literal
 
 from . import _orc
 from ._fs import SupportedFileSystem

pyarrow-stubs/parquet/core.pyi

@@ -1,5 +1,12 @@
+import sys
+
 from pathlib import Path
-from typing import IO, Callable, Iterator, Literal, Self, Sequence
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+from typing import IO, Callable, Iterator, Literal, Sequence
 
 from pyarrow import _parquet
 from pyarrow._compute import Expression