Switch to new parser API

While email.message_from_binary_file() isn't documented as deprecated,
it returns an email.message.Message object which is documented as
legacy. Switch to email.parser.BytesParser() to obtain an
email.message.EmailMessage() object instead.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/patch-save.py b/patch-save.py
index 1c0516f..a9b9a3c 100755
--- a/patch-save.py
+++ b/patch-save.py
@@ -18,6 +18,8 @@
 #
 
 import email
+import email.parser
+import email.policy
 import pathlib
 import re
 import sys
@@ -46,7 +48,8 @@ def main(argv):
 
     # Parse the message from stdin as binary, as we can't assume any particular
     # encoding.
-    msg = email.message_from_binary_file(sys.stdin.buffer)
+    parser = email.parser.BytesParser(policy=email.policy.default)
+    msg = parser.parse(sys.stdin.buffer)
 
     # mailman can mangle the From header to work around DMARC rejection rules.
     # It then formats From as "Name via mailing-list <mailing-list@domain>" and