diff --git a/Lib/filecmp.py b/Lib/filecmp.py
index 70a4b23c9..950b2afd4 100644
--- a/Lib/filecmp.py
+++ b/Lib/filecmp.py
@@ -10,7 +10,10 @@ Functions:
 
 """
 
-import os
+try:
+    import os
+except ImportError:
+    import _dummy_os as os
 import stat
 from itertools import filterfalse
 from types import GenericAlias