Switch to side-by-side view

--- a/OSSEval/entity/models.py
+++ b/OSSEval/entity/models.py
@@ -16,7 +16,7 @@
     def to_xml(self):
         return '<Entity Id="' + str(self.id) + '" Name="' + self.name + '" ActualEntityClass="' + self.actual_entity_class + '" ActualEntityApp="' + self.actual_entity_app + '"/>'
     
-    def __unicode__(self):
+    def __str__(self):
         return self.name