Move Python compatibility concerns to the appropriate modules.

tests/compat/py310.py

@@ -0,0 +1,10 @@
+import sys
+
+
+if sys.version_info >= (3, 11):
+    from importlib.resources.abc import Traversable
+else:  # pragma: no cover
+    from .py38 import Traversable
+
+
+__all__ = ['Traversable']

tests/compat/py38.py

@@ -0,0 +1,10 @@
+import sys
+
+
+if sys.version_info >= (3, 9):
+    from importlib.abc import Traversable
+else:  # pragma: no cover
+    from importlib_resources.abc import Traversable
+
+
+__all__ = ['Traversable']

tests/compat/py39.py

@@ -9,17 +9,3 @@
 )
 
 sys.modules[__name__ + '.os_helper'] = os_helper
-
-
-try:
-    from importlib.resources.abc import Traversable
-except ImportError:  # pragma: no cover
-    try:
-        # Python 3.9
-        from importlib.abc import Traversable
-    except ImportError:
-        # Python 3.8
-        from importlib_resources.abc import Traversable  # type: ignore[no-redef]
-
-
-__all__ = ['Traversable']

tests/test_path.py

@@ -591,7 +591,7 @@ def test_malformed_paths(self):
 
     @pass_alpharep
     def test_interface(self, alpharep):
-        from .compat.py39 import Traversable
+        from .compat.py310 import Traversable
 
         zf = zipfile.Path(alpharep)
         assert isinstance(zf, Traversable)