fix: minor fixes for tests and checking

Signed-off-by: Henry Schreiner <[email protected]>

Author: henryiii

pyproject.toml

@@ -271,6 +271,7 @@ exclude = []
 "tests/**" = ["T20"]
 "noxfile.py" = ["T20", "TID251"]
 "src/scikit_build_core/resources/*.py" = ["PTH", "ARG002", "FBT", "TID251"]
+"src/scikit_build_core/resources/_editable_redirect.py" = ["TRY002"]
 "src/scikit_build_core/_compat/**.py" = ["TID251"]
 "tests/conftest.py" = ["TID251"]
 "docs/conf.py" = ["TID251"]

src/scikit_build_core/resources/_editable_redirect.py

@@ -1,10 +1,10 @@
 from __future__ import annotations
 
+import abc
 import os
 import subprocess
 import sys
 import typing
-from abc import ABC
 from importlib.abc import (
     ExecutionLoader,
     MetaPathFinder,
@@ -142,7 +142,7 @@ def create_module(self, spec: Any) -> Any:
 # - Must handle the path redirections
 
 
-class SKBuildTraversable(Traversable, ABC):
+class SKBuildTraversable(Traversable, metaclass=abc.ABCMeta):
     def __init__(self, tree: SKBuildTree, module: str) -> None:
         self._tree = tree
         self._module = module