From 64f0f0fd9d02e55ccf4e8da3338e956bc0315ae6 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 10 Oct 2011 15:02:14 +0530
Subject: [PATCH] ...

---
 src/calibre/library/cli.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/calibre/library/cli.py b/src/calibre/library/cli.py
index 29deaa680b..65752eb183 100644
--- a/src/calibre/library/cli.py
+++ b/src/calibre/library/cli.py
@@ -47,6 +47,9 @@ def get_parser(usage):
 def get_db(dbpath, options):
     if options.library_path is not None:
         dbpath = options.library_path
+    if dbpath is None:
+        raise ValueError('No saved library path, either run the GUI or use the'
+                ' --with-library option')
     dbpath = os.path.abspath(dbpath)
     return LibraryDatabase2(dbpath)