From 6ced4993590bd4bd5396f7a11b4d767c9e970942 Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@tremily.us>
Date: Sun, 2 Sep 2012 08:59:05 -0400
Subject: [PATCH] mailpipe: add a warning message before loading a message from
 a stream.

This reminds you if you forget to use the `--mailbox` option when
calling `pg.py`, and the process hangs waiting for a message on stdin.
---
 pygrader/mailpipe.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pygrader/mailpipe.py b/pygrader/mailpipe.py
index b254273..dd88d82 100644
--- a/pygrader/mailpipe.py
+++ b/pygrader/mailpipe.py
@@ -610,6 +610,7 @@ def _load_messages(course, stream, mailbox=None, input_=None, output=None,
                    continue_after_invalid_message=False, respond=None,
                    dry_run=False):
     if mailbox is None:
+        _LOG.debug('loading message from {}'.format(stream))
         mbox = None
         messages = [(None,_message_from_file(stream))]
         if output is not None:
-- 
2.26.2