如何获取python数组中第二次出现的值并为其设置颜色？

def set_second_occurrence_color(arr):
    occurrence_dict = {}  # 用于记录值的出现次数和索引位置

    for i, value in enumerate(arr):
        if value in occurrence_dict:
            occurrence_dict[value]['count'] += 1
            occurrence_dict[value]['index'] = i
        else:
            occurrence_dict[value] = {'count': 1, 'index': i}

        if occurrence_dict[value]['count'] == 2:  # 找到第二次出现的值
            # 设置颜色，这里使用一个虚拟的color函数来表示设置颜色的操作
            color(value, occurrence_dict[value]['index'])
            break