From 52baf63eb0d356bcae01f7fb8af76fb38d863fa0 Mon Sep 17 00:00:00 2001
From: Terry Howe <terrylhowe@gmail.com>
Date: Tue, 17 Jun 2014 14:24:33 -0600
Subject: [PATCH] Make the session command a little more friendly

Make the session command a little more friendly with an error
message.

Change-Id: I1598c0fe18c21c80836bf2f069695527807dd0f9
---
 examples/session.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/examples/session.py b/examples/session.py
index 26e7f744d..c45c800a1 100644
--- a/examples/session.py
+++ b/examples/session.py
@@ -26,8 +26,9 @@ def make_session(opts):
 
 
 def run_session(opts):
-    """Create session."""
     argument = opts.argument
+    if argument is None:
+        raise Exception("A path argument must be specified")
     sess = make_session(opts)
     filtration = service_filter.ServiceFilter('Identity')
     print("Session: %s" % sess)