我想將下面提供的字典串列與唯一的頻道和 zrepcode 合并。
樣本輸入：
[
{
"channel": 1,
"zrepcode": "123456",
"turn": 7833.9
},
{
"channel": 1,
"zrepcode": "123456",
"pipeline": 324
},
{
"channel": 1,
"zrepcode": "123456",
"inv_bal": 941.16
},
{
"channel": 1,
"zrepcode": "123456",
"display": 341
},
{
"channel": 3,
"zrepcode": "123456",
"display": 941.16
},
{
"channel": 3,
"zrepcode": "123456",
"turn": 7935.01
},
{
"channel": 3,
"zrepcode": "123456",
"pipeline": 0
},
{
"channel": 3,
"zrepcode": "123456",
"inv_bal": 341
},
{
"channel": 3,
"zrepcode": "789789",
"display": 941.16
},
{
"channel": 3,
"zrepcode": "789789",
"turn": 7935.01
},
{
"channel": 3,
"zrepcode": "789789",
"pipeline": 0
},
{
"channel": 3,
"zrepcode": "789789",
"inv_bal": 341
}
]
示例輸出：
[
{'channel': 1, 'zrepcode': '123456', 'turn': 7833.9, 'pipeline': 324.0,'display': 341,'inv_bal': 941.16},
{'channel': 3, 'zrepcode': '123456', 'turn': 7935.01, 'pipeline': 0.0, 'display': 941.16, 'inv_bal': 341.0},
{'channel': 3, 'zrepcode': '789789', 'turn': 7935.01, 'pipeline': 0.0, 'display': 941.16, 'inv_bal': 341.0}
]
uj5u.com熱心網友回復：
與我們的好朋友collections.defaultdict輕松解決：
import collections
by_key = collections.defaultdict(dict)
for datum in data: # data is the list of dicts from the post
key = (datum.get("channel"), datum.get("zrepcode")) # form the key tuple
by_key[key].update(datum) # update the defaultdict by the key tuple
print(list(by_key.values()))
這輸出
[
{'channel': 1, 'zrepcode': '123456', 'turn': 7833.9, 'pipeline': 324, 'inv_bal': 941.16, 'display': 341},
{'channel': 3, 'zrepcode': '123456', 'display': 941.16, 'turn': 7935.01, 'pipeline': 0, 'inv_bal': 341},
{'channel': 3, 'zrepcode': '789789', 'display': 941.16, 'turn': 7935.01, 'pipeline': 0, 'inv_bal': 341},
]
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