[experiments][models][experiment] Fix key search in dictionary

beat/web/experiments/models/experiment.py

@@ -357,7 +357,7 @@ class Experiment(Shareable):
             raise ShareError(errors)
 
         for algorithm in own_needed_algorithms:
-            if algorithms_infos and algorithms_infos.has_key(algorithm.fullname()):
+            if algorithms_infos and algorithm.fullname() in algorithms_infos:
                 infos = algorithms_infos[algorithm.fullname()]
                 opensource = infos.get('opensource', False)
             else: