[英]Extracting the number of value occurrences from a nested dictionary
我試圖從嵌套字典中提取值的總和,並將鍵名保存為新字典。
我一直在嘗試從這里研究各種方法,但下面是我得到的最接近的方法。
來源字典:
result_data=
{
"uhawjjh4": {
"GET": "GREEN",
"POST": "GREEN",
"Query": "GREEN",
"Cookie": "RED",
"String": "RED",
"Body": "BLUE"
},
"bcfp19sg": {
"GET": "GREEN",
"POST": "GREEN",
"Query": "RED",
"Cookie": "RED",
"String": "RED",
"Body": "BLUE"
}
}
碼:
result_data_global = Counter()
for data in result_data.values():
result_data_global += Counter(data.keys())
結果:
{
"GREEN": 5,
"RED": 5,
"BLUE": 2,
}
我需要的是總數的關鍵和價值:
{
"GET": {"GREEN": 2},
"POST": {"GREEN": 2},
"Query": {"GREEN": 1, “RED”: 1},
....
{
可能很簡單,但在這里沒有成功。 謝謝!
你可以使用dict.setdefault
:
result = {}
for d in result_data.values():
for k, v in d.items():
result[k][v] = result.setdefault(k, {}).get(v, 0) + 1
result
變成:
{'GET': {'GREEN': 2}, 'POST': {'GREEN': 2}, 'Query': {'GREEN': 1, 'RED': 1}, 'Cookie': {'RED': 2}, 'String': {'RED': 2}, 'Body': {'BLUE': 2}}
您可以使用collections.defaultdict
:
from collections import Counter, defaultdict
d = {'uhawjjh4': {'GET': 'GREEN', 'POST': 'GREEN', 'Query': 'GREEN', 'Cookie': 'RED', 'String': 'RED', 'Body': 'BLUE'}, 'bcfp19sg': {'GET': 'GREEN', 'POST': 'GREEN', 'Query': 'RED', 'Cookie': 'RED', 'String': 'RED', 'Body': 'BLUE'}}
new_d = defaultdict(list)
result = [i for b in d.values() for i in b.items()]
for a, b in result:
new_d[a].append(b)
new_result = {a:dict(Counter(b)) for a, b in new_d.items()}
輸出:
{'GET': {'GREEN': 2}, 'POST': {'GREEN': 2}, 'Query': {'GREEN': 1, 'RED': 1}, 'Cookie': {'RED': 2}, 'String': {'RED': 2}, 'Body': {'BLUE': 2}}
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