use os path for path count in display as well

Author: KeynesYouDigIt

tests/test_catalog.py

@@ -843,7 +843,6 @@ def test_generate_subcatalogs_works_for_subcatalogs_with_same_ids(self) -> None:
                 Path(path_to_parent).parts[1:]
             )  # Skip drive letter if present (Windows)
 
-            ## D: creates failure for py3.13 on windows
             assert len(subcats) == 2, f" for item '{item.id}'"
 
     def test_map_items(self) -> None:

tests/test_layout.py

@@ -1,4 +1,6 @@
+import os
 import posixpath
+import sys
 import unittest
 from collections.abc import Callable
 from datetime import datetime, timedelta
@@ -413,6 +415,15 @@ class AsIsLayoutStrategyTest(unittest.TestCase):
     def setUp(self) -> None:
         self.strategy = AsIsLayoutStrategy()
 
+        path_includes_drive: bool = (
+            sys.version_info.major == 3
+            and sys.version_info.minor >= 13
+            and os.name == "nt"
+        )
+        self.expected_local_href = (
+            "/an/href" if not path_includes_drive else "D:/an/href"
+        )
+
     def test_catalog(self) -> None:
         cat = pystac.Catalog(id="test", description="test desc")
         with self.assertRaises(ValueError):