add __repr__ to MagicsDisplay

IPython/core/magics/basic.py

@@ -40,6 +40,9 b' class MagicsDisplay(object):'
     def _repr_pretty_(self, p, cycle):
         p.text(self._lsmagic())
     
+    def __repr__(self):
+        return self.__str__()
+    
     def __str__(self):
         return self._lsmagic()