Issue #23615: Module tarfile is now can be reloaded with imp.reload().
diff --git a/Tools/freeze/bkfile.py b/Tools/freeze/bkfile.py
index 54af2fa..2fc19dc 100644
--- a/Tools/freeze/bkfile.py
+++ b/Tools/freeze/bkfile.py
@@ -1,4 +1,4 @@
-_orig_open = open
+from __builtin__ import open as _orig_open
 
 class _BkFile:
     def __init__(self, file, mode, bufsize):