如何在分组数据时识别重叠的日期范围

def identify_overlapping_ranges(data):
    data.sort(key=lambda x: x[0])  # 按照日期范围的开始日期进行排序
    result = []
    for i in range(len(data) - 1):
        if data[i][1] >= data[i+1][0]:
            result.append((data[i][0], data[i+1][1]))  # 添加重叠的日期范围到结果集中
    return result

# 示例数据
data = [(date(2022, 1, 1), date(2022, 1, 5)),
        (date(2022, 1, 3), date(2022, 1, 7)),
        (date(2022, 1, 6), date(2022, 1, 10)),
        (date(2022, 1, 12), date(2022, 1, 15))]

overlapping_ranges = identify_overlapping_ranges(data)
print(overlapping_ranges)