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-rwxr-xr-xwqflask/base/trait.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/wqflask/base/trait.py b/wqflask/base/trait.py
index 801d32c2..db76ddea 100755
--- a/wqflask/base/trait.py
+++ b/wqflask/base/trait.py
@@ -30,7 +30,7 @@ class GeneralTrait(object):
 
     def __init__(self, get_qtl_info=False, **kw):
         # xor assertion
-        assert bool(kw.get('dataset')) != bool(kw.get('dataset_name')), "Needs dataset ob. xor name";
+        assert bool(kw.get('dataset')) != bool(kw.get('dataset_name')), "Needs dataset ob. or name";
         if kw.get('dataset_name'):
             self.dataset = create_dataset(kw.get('dataset_name'))
         else: