From d12dd41845c16dbeae03290e26c66ab3586c98d7 Mon Sep 17 00:00:00 2001
From: Alfredo Deza <alfredodeza@gmail.com>
Date: Wed, 23 Jan 2013 18:03:43 -0500
Subject: [PATCH] make the base handle optional config file

---
 pecan/commands/base.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pecan/commands/base.py b/pecan/commands/base.py
index 811b424..68b5c0e 100644
--- a/pecan/commands/base.py
+++ b/pecan/commands/base.py
@@ -136,7 +136,9 @@ class BaseCommand(object):
 
     arguments = ({
         'name': 'config_file',
-        'help': 'a Pecan configuration file'
+        'help': 'a Pecan configuration file',
+        'nargs': '?',
+        'default': None,
     },)
 
     def run(self, args):