From 05d739ee102a51a336d4e68f78c08a4aa3066232 Mon Sep 17 00:00:00 2001
From: bjones1 <bjones@ece.msstate.edu>
Date: Thu, 22 Jun 2017 13:15:31 -0500
Subject: [PATCH] Fix: Windows failure (USER environment variable not defined).

---
 runestone/server/chapternames.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/runestone/server/chapternames.py b/runestone/server/chapternames.py
index 18c572edf..44036e527 100644
--- a/runestone/server/chapternames.py
+++ b/runestone/server/chapternames.py
@@ -88,7 +88,8 @@ def getTOCEntries(ftext):
 
 def addChapterInfoToDB(subChapD, chapTitles, course_id):
     dbname = 'runestone'
-    uname = os.environ['USER']
+    # Provide a default database URI if the ``USER`` environment variables is define (it is on Linux/Mac).
+    uname = os.environ.get('USER')
     if uname == 'bnmnetp':
         uname = 'bnmnetp_courselib'
         dbname = 'bnmnetp_courselib'