Passed strict=True to Path.resolve() to enforce that the path must exist.

django/contrib/auth/password_validation.py

@@ -167,7 +167,7 @@ class CommonPasswordValidator:
     https://gist.github.com/roycewilliams/281ce539915a947a23db17137d91aeb7
     The password list must be lowercased to match the comparison in validate().
     """
-    DEFAULT_PASSWORD_LIST_PATH = Path(__file__).resolve().parent / 'common-passwords.txt.gz'
+    DEFAULT_PASSWORD_LIST_PATH = Path(__file__).resolve(strict=True).parent / 'common-passwords.txt.gz'
 
     def __init__(self, password_list_path=DEFAULT_PASSWORD_LIST_PATH):
         try:

tests/utils_tests/test_autoreload.py

@@ -35,7 +35,7 @@ class TestIterModulesAndFiles(SimpleTestCase):
     def assertFileFound(self, filename):
         # Some temp directories are symlinks. Python resolves these fully while
         # importing.
-        resolved_filename = filename.resolve()
+        resolved_filename = filename.resolve(strict=True)
         self.clear_autoreload_caches()
         # Test uncached access
         self.assertIn(resolved_filename, list(autoreload.iter_all_python_module_files()))
@@ -44,7 +44,7 @@ class TestIterModulesAndFiles(SimpleTestCase):
         self.assertEqual(autoreload.iter_modules_and_files.cache_info().hits, 1)
 
     def assertFileNotFound(self, filename):
-        resolved_filename = filename.resolve()
+        resolved_filename = filename.resolve(strict=True)
         self.clear_autoreload_caches()
         # Test uncached access
         self.assertNotIn(resolved_filename, list(autoreload.iter_all_python_module_files()))
@@ -168,7 +168,7 @@ class TestCommonRoots(SimpleTestCase):
 class TestSysPathDirectories(SimpleTestCase):
     def setUp(self):
         self._directory = tempfile.TemporaryDirectory()
-        self.directory = Path(self._directory.name).resolve().absolute()
+        self.directory = Path(self._directory.name).resolve(strict=True).absolute()
         self.file = self.directory / 'test'
         self.file.touch()
 
@@ -381,7 +381,7 @@ class ReloaderTests(SimpleTestCase):
 
     def setUp(self):
         self._tempdir = tempfile.TemporaryDirectory()
-        self.tempdir = Path(self._tempdir.name).resolve().absolute()
+        self.tempdir = Path(self._tempdir.name).resolve(strict=True).absolute()
         self.existing_file = self.ensure_file(self.tempdir / 'test.py')
         self.nonexistent_file = (self.tempdir / 'does_not_exist.py').absolute()
         self.reloader = self.RELOADER_CLS()