From b118c2d0755a1bb3e34ca789c402afc9b2f51717 Mon Sep 17 00:00:00 2001
From: Paul McCarthy <pauldmccarthy@gmail.com>
Date: Sat, 3 Mar 2018 17:33:55 +0000
Subject: [PATCH] Bugfix in _FileOrThing.__prepareThings

---
 fsl/wrappers/wrapperutils.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fsl/wrappers/wrapperutils.py b/fsl/wrappers/wrapperutils.py
index bac9cc33c..a2ec6eb50 100644
--- a/fsl/wrappers/wrapperutils.py
+++ b/fsl/wrappers/wrapperutils.py
@@ -558,8 +558,8 @@ class _FileOrThing(object):
         allargs  = {k : v for k, v in zip(argnames, args)}
         allargs.update(kwargs)
 
-        if len(self.__things) == 0: things = self.__things
-        else:                       things = allargs.keys()
+        if len(self.__things) > 0: things = self.__things
+        else:                      things = allargs.keys()
 
         for name in things:
 
-- 
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