def remove_duplicates(self, list_):
        ret = []
        for item in list_:
            if item not in ret:
                ret.append(item)
        removed = len(list_) - len(ret)
        print '%d duplicate%s removed.' % (removed, plural_or_not(removed))
        return ret
Focus of Vi command line lost, undo preview.
dataset/ETHPy150Open shellderp/sublime-robot-plugin/lib/robot/libraries/Collections.py/_List.remove_duplicates--crossover with--dataset/ETHPy150Open jonathanslenders/pyvim/pyvim/commands/preview.py/CommandPreviewer.restore