def most_common(self, n=None):
        if n is None:
            return sorted(self.items(), key=itemgetter(1), reverse=True)
        return nlargest(n, self.items(), key=itemgetter(1))
Returns a list of the n most common (element, count)-tuples.
dataset/ETHPy150Open clips/pattern/pattern/metrics.py/Counter.most_common