level_names = [ u'Second Level', u'Second Level', u'Second Level', u'First Level', u'First Level' ]
>>> the_list = set(level_names) >>> print(the_list) set([u'Second Level', u'First Level'])
the_list = [] for level in level_names: if level not in the_list: the_list.append(level) print(the_list)
the_list = [] the_set = set() for level in level_names: if level not in the_set: the_set.add(level) the_list.append(level) print(the_list)
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