NRLResponse pretty repr.

obspy/clients/nrl/client.py

@@ -240,9 +240,15 @@ class NRLPath(str):
 
 
 class NRLResponse(tuple):
+    """
+    The end or leaf node of NRL tree.
+    A tuple of ( 'Str description', path_of_resp_file')
+    """
     def __str__(self):
         return '{} : {}'.format(self[0], self[1])
 
+    def _repr_pretty_(self, p, cycle):
+        p.text(str(self))
 
 class LocalNRL(NRL):
     """