1 files changed, 4 insertions, 4 deletions
diff --git a/Doc/includes/email-unpack.py b/Doc/includes/email-unpack.py
index 574a0b6..e0a7f01 100644
--- a/Doc/includes/email-unpack.py
+++ b/Doc/includes/email-unpack.py
@@ -3,11 +3,11 @@
 """Unpack a MIME message into a directory of files."""
 
 import os
-import sys
 import email
-import errno
 import mimetypes
 
+from email.policy import default
+
 from argparse import ArgumentParser
 
 
@@ -22,8 +22,8 @@ Unpack a MIME message into a directory of files.
     parser.add_argument('msgfile')
     args = parser.parse_args()
 
-    with open(args.msgfile) as fp:
-        msg = email.message_from_file(fp)
+    with open(args.msgfile, 'rb') as fp:
+        msg = email.message_from_binary_file(fp, policy=default)
 
     try:
         os.mkdir(args.directory)