From e306649cae7886c0a78ac145a2ed0ce8646fa2da Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@drexel.edu>
Date: Wed, 8 Sep 2010 15:48:22 -0400
Subject: [PATCH] Skip some param translation in the JPK driver for
 channel-less segments.

---
 hooke/driver/jpk.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hooke/driver/jpk.py b/hooke/driver/jpk.py
index 4e5ab0f..39dea4f 100644
--- a/hooke/driver/jpk.py
+++ b/hooke/driver/jpk.py
@@ -199,6 +199,8 @@ class JPKDriver (Driver):
             'raw info':params,
             #'time':self._time_from_TODO(raw_info[]),
             }
+        if len(chan_info['channels']['list']) == 0:
+            return info
         force_unit = self._zip_unit(
             chan_info['channel']['vDeflection']['conversion-set']['conversion']['force']['scaling'],
             version)
-- 
2.26.2