Avoid using LegacyVersion from packaging

pkg_resources/__init__.py

@@ -2021,7 +2021,17 @@ def _by_version(name):
         """
         name, ext = os.path.splitext(name)
         parts = itertools.chain(name.split('-'), [ext])
-        return [packaging.version.parse(part) for part in parts]
+
+        def parse_version_ignore_invalid(version):
+            try:
+                return packaging.version.Version(version)
+            except packaging.version.InvalidVersion:
+                # Per PEP 440, version strings are compared in a
+                # case-insensitive manner. Do the same for
+                # non-version strings.
+                return version.lower()
+
+        return [parse_version_ignore_invalid(part) for part in parts]
 
     return sorted(names, key=_by_version, reverse=True)