diff --git a/django/apps/config.py b/django/apps/config.py
index bced53d506..7dfb4b4e15 100644
--- a/django/apps/config.py
+++ b/django/apps/config.py
@@ -73,8 +73,7 @@ class AppConfig:
         """Attempt to determine app's filesystem path from its module."""
         # See #21874 for extended discussion of the behavior of this method in
         # various cases.
-        # Convert paths to list because Python's _NamespacePath doesn't support
-        # indexing.
+        # Convert to list because __path__ may not support indexing.
         paths = list(getattr(module, '__path__', []))
         if len(paths) != 1:
             filename = getattr(module, '__file__', None)
diff --git a/django/utils/module_loading.py b/django/utils/module_loading.py
index 9f58c06856..8c798f69bb 100644
--- a/django/utils/module_loading.py
+++ b/django/utils/module_loading.py
@@ -85,7 +85,7 @@ def module_dir(module):
     Raise ValueError otherwise, e.g. for namespace packages that are split
     over several directories.
     """
-    # Convert to list because _NamespacePath does not support indexing.
+    # Convert to list because __path__ may not support indexing.
     paths = list(getattr(module, '__path__', []))
     if len(paths) == 1:
         return paths[0]