From 5d84f6b5392236e8d2b1513178063bfc2a5f5893 Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@drexel.edu>
Date: Wed, 20 Apr 2011 16:31:56 -0400
Subject: [PATCH] Special case for '/' group in h5_create_group.

---
 pypiezo/config.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pypiezo/config.py b/pypiezo/config.py
index 1e182b4..6df2460 100644
--- a/pypiezo/config.py
+++ b/pypiezo/config.py
@@ -463,6 +463,8 @@ def _pformat_hdf5(cwg, depth=0):
                          
 def h5_create_group(cwg, path):
     "Create the group where the settings are stored (if necessary)."
+    if path == '/':
+        return cwg
     gpath = ['']
     for group in path.strip('/').split('/'):
         gpath.append(group)
-- 
2.26.2