From a82753ef3a11e948871c20e6f04aa0c5cd6f0159 Mon Sep 17 00:00:00 2001
From: David Stansby <dstansby@gmail.com>
Date: Wed, 26 Sep 2018 13:06:28 +0100
Subject: [PATCH] Make FooConverter inherit from ConversionInterface in
 examples

---
 examples/units/evans_test.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/units/evans_test.py b/examples/units/evans_test.py
index 72acfb4bf6ca..c5fe9696d2fb 100644
--- a/examples/units/evans_test.py
+++ b/examples/units/evans_test.py
@@ -27,7 +27,7 @@ def value(self, unit):
         return self._val / unit
 
 
-class FooConverter(object):
+class FooConverter(units.ConversionInterface):
     @staticmethod
     def axisinfo(unit, axis):
         'return the Foo AxisInfo'