Merge pull request astropy#15529 from eerovaher/ruff-python-target-ve…

…rsion

Remove explicit Ruff Python target version

astropy/cosmology/parameter/_core.py

@@ -7,13 +7,16 @@
 import copy
 from dataclasses import dataclass, field, fields, replace
 from enum import Enum, auto
-from typing import Any, Sequence
+from typing import TYPE_CHECKING, Any
 
 import astropy.units as u
 from astropy.utils.compat import PYTHON_LT_3_10
 
 from ._converter import _REGISTRY_FVALIDATORS, FValidateCallable, _register_validator
 
+if TYPE_CHECKING:
+ from collections.abc import Sequence
+
 if not PYTHON_LT_3_10:
  from dataclasses import KW_ONLY
 else:

pyproject.toml

@@ -319,9 +319,6 @@ exclude= [
  ]
 
 [tool.ruff]
-# Our minimum Python version is 3.9 but we want to minimize backport issues, so
-# we use 3.8 as the target version.
-target-version = "py38"
 line-length = 88
 select = ["ALL"]
 exclude=[