diff --git a/python/obitools3/dms/view/typed_view/view_NUC_SEQS.pyx b/python/obitools3/dms/view/typed_view/view_NUC_SEQS.pyx
index 693b43e..fe18a8c 100644
--- a/python/obitools3/dms/view/typed_view/view_NUC_SEQS.pyx
+++ b/python/obitools3/dms/view/typed_view/view_NUC_SEQS.pyx
@@ -57,12 +57,13 @@ cdef class View_NUC_SEQS(View):
 
         return view
 
-    
+
+# TODO
     def __getitem__(self, object item) :
-        if type(item) == str :
-            return self.get_column(item)    # TODO hyper lent dans la pratique
-        elif type(item) == int :
+        if type(item) == int :
             return Nuc_Seq_Stored(self, item)
+        else :  # TODO assume str or bytes for optimization?
+            return self.get_column(item)    # TODO hyper lent dans la pratique
     
     
     def __setitem__(self, index_t line_idx, Nuc_Seq sequence_obj) :
@@ -70,6 +71,8 @@ cdef class View_NUC_SEQS(View):
             self[line_idx][key] = sequence_obj[key]
 
 
+# TODO make properties for id, seq, def columns etc
+
 
 def register_class() :
     register_view_class(VIEW_TYPE_NUC_SEQS, View_NUC_SEQS)