From 0fcb79d1592f2d583afeff6d75dbce76492f3e85 Mon Sep 17 00:00:00 2001
From: Florian Klink <flokli@flokli.de>
Date: Sat, 28 Nov 2020 18:25:16 +0100
Subject: [PATCH] Issue #28764: mailbox.mbox: handle lines with non-ascii more
 graceful

Don't fail to parse if non-ascii characters occur after a From: line.
---
 Lib/mailbox.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/mailbox.py b/Lib/mailbox.py
index 70da07ed2e9e8b..9683314966bcd3 100644
--- a/Lib/mailbox.py
+++ b/Lib/mailbox.py
@@ -781,7 +781,7 @@ def get_message(self, key):
         from_line = self._file.readline().replace(linesep, b'')
         string = self._file.read(stop - self._file.tell())
         msg = self._message_factory(string.replace(linesep, b'\n'))
-        msg.set_from(from_line[5:].decode('ascii'))
+        msg.set_from(from_line[5:].decode('ascii', errors='replace'))
         return msg
 
     def get_string(self, key, from_=False):