Drop Python 3.9 support

Author: crusaderky

array_api_strict/_array_object.py

@@ -16,11 +16,10 @@
 from __future__ import annotations
 
 import operator
-import sys
 from collections.abc import Iterator
 from enum import IntEnum
-from types import ModuleType
-from typing import TYPE_CHECKING, Any, Final, Literal, SupportsIndex
+from types import EllipsisType, ModuleType
+from typing import Any, Final, Literal, SupportsIndex
 
 import numpy as np
 import numpy.typing as npt
@@ -43,13 +42,6 @@
 from ._flags import get_array_api_strict_flags, set_array_api_strict_flags
 from ._typing import PyCapsule
 
-if sys.version_info >= (3, 10):
-    from types import EllipsisType
-elif TYPE_CHECKING:
-    from typing_extensions import EllipsisType
-else:
-    EllipsisType = type(Ellipsis)
-
 
 class Device:
     _device: Final[str]

array_api_strict/_data_type_functions.py

@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 from dataclasses import dataclass
 
 import numpy as np

array_api_strict/_dtypes.py

@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 import builtins
 import warnings
 from typing import Any, Final

array_api_strict/_elementwise_functions.py

@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 import numpy as np
 
 from ._array_object import Array

array_api_strict/_fft.py

@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 from collections.abc import Sequence
 from typing import Literal
 

array_api_strict/_flags.py

@@ -11,24 +11,16 @@
 library will only support one particular configuration of these flags.
 
 """
-
-from __future__ import annotations
-
 import functools
 import os
 import warnings
 from collections.abc import Callable
 from types import TracebackType
-from typing import TYPE_CHECKING, Any, Collection, TypeVar, cast
+from typing import Any, Collection, ParamSpec, TypeVar, cast
 
 import array_api_strict
 
-if TYPE_CHECKING:
-    # TODO import from typing (requires Python >= 3.10)
-    from typing_extensions import ParamSpec
-
-    P = ParamSpec("P")
-
+P = ParamSpec("P")
 T = TypeVar("T")
 _CallableT = TypeVar("_CallableT", bound=Callable[..., object])
 

array_api_strict/_helpers.py

@@ -1,7 +1,5 @@
 """Private helper routines."""
 
-from __future__ import annotations
-
 from ._array_object import Array
 from ._dtypes import _dtype_categories
 from ._flags import get_array_api_strict_flags

array_api_strict/_indexing_functions.py

@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 import numpy as np
 
 from ._array_object import Array

array_api_strict/_info.py

@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 import numpy as np
 
 from . import _dtypes as dt

array_api_strict/_linalg.py

@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 from collections.abc import Sequence
 from functools import partial
 from typing import Literal, NamedTuple