Merge pull request #227 from pgrinaway/units

Implemented equality and inequality operators for BaseDimension

wrappers/python/simtk/unit/basedimension.py

@@ -90,6 +90,16 @@ class BaseDimension(object):
     def __repr__(self):
         return 'BaseDimension("%s")' % self.name
     
+    def __eq__(self, other):
+        if isInstance(other, BaseDimension):
+            return self._index == other._index
+        return False
+    
+    def __ne__(self, other):
+        if isInstance(other, BaseDimension):
+            return self._index != other._index
+        return False
+
 
 # run module directly for testing
 if __name__=='__main__':