Python map reduce 匹配字典中的部分键和求和值

Question

我正在尝试根据部分键匹配对字典中的值求和。我的字典 cust_dictionary 看起来像这样，键为 month;Country:customer_id 然后值是销售额

:|{'07;EIRE:14156': 26468.0, '09;United Kingdom:16266': 102.0,'07;EIRE:12600': 124.0

我有一个部分键列表 uniq_cust，如下所示：

:|['07;EIRE', '09;United Kingdom', '06;United Kingdom', '03;Germany', '04;Finland',

我会使用键列表遍历字典并以这种方式求和吗？那会是什么样子？

我想将部分键与字典匹配并对每个匹配项求和，这样我就会得到这样的东西：

07:EIRE,14280
09:United Kingdom,16266

Answer 1

result = {}
for key,dict_value in custom_dict.items():
    partial_key, rest_key_value = key.split(':')
    if not partial_key in result:
        result[partial_key] = 0
    #not super clear from your question if you want to add the numbers within the keys or the number associated to the keys via the dict
    
    #next commented out line is adding the values included in the keys themselves
    #result[partial_key] += int(rest_key_value)
    
    #next line is adding the values in the dict
    result[partial_key] += dict_value

Python map reduce 匹配字典中的部分键和求和值

Python map reduce match partial key in Dictionary and sum values

python

mapreduce