python之按类的属性分组和计数

我有一个结果类如下

class Result: 
    cluster = -1; 
    label = -1; 

簇和标签都可以有 0-9 之间的值，我想做的是计算簇中标签的数量。目前我正在使用以下代码进行计数，但这不是一个优雅的解决方案。 resultList 是 Result 对象的列表。

countZero = 0; 
countOne = 0; 
countTwo = 0; 
countThree = 0; 
countFour = 0; 
countFive = 0; 
countSix = 0; 
countSeven = 0; 
countEight = 0; 
countNine = 0; 
 
    for i in range(len(resultList)): 
        if resultList[i].cluster == 0: 
            if resultList[i].label == 0: 
                countZero = countZero + 1 
            if resultList[i].label == 1: 
                countOne = countOne + 1 
            if resultList[i].label == 2: 
                countTwo = countTwo + 1 
            if resultList[i].label == 3: 
                countThree = countThree + 1 
            if resultList[i].label == 4: 
                countFour = countFour + 1 
            if resultList[i].label == 5: 
                countFive = countFive + 1 
            if resultList[i].label == 6: 
                countSix = countSix + 1 
            if resultList[i].label == 7: 
                countSeven = countSeven + 1 
            if resultList[i].label == 8: 
                countEight = countEight + 1 
            if resultList[i].label == 9: 
                countNine = countNine + 1 
 
    print(countZero) #  
    print(countOne) #  
    print(countTwo) #  
    print(countThree) # 
    print(countFour) #  
    print(countFive) #  
    print(countSix) #  
    print(countSeven) #  
    print(countEight) #  
    print(countNine) # 

如有任何关于寻找更好解决方案的建议或指导，我们将不胜感激。

请您参考如下方法:

Counter 函数返回一个字典，其中包含每个标签的计数。以这种方式将其用于集群 0:

from collections import Counter 
 
Counter(resultList[resultList['cluster']==0]]['label'])