fix getting next dict_values iterator value

blake-regalia · web-flow · commit fa623596ff13 · 2018-12-27T17:00:23.000-08:00
diff --git a/sparqlkernel/drawgraph.py b/sparqlkernel/drawgraph.py
@@ -148,7 +148,7 @@ def label(x, gr, preferred_languages=None):
             for l in preferred_languages:
                 if l in labels:
                     return labels[l]
-        return labels.values().next()
+        return next(iter(labels.values()))
 
     # No labels available. Try to generate a QNAME, or else, the string itself
     try:
