我有一個看起來像這樣的字典列表[{"Name": John, "Score": 1}, {"Name": John, "Score": 2}, {"Name": Steve, "Score": 3}, {"Name": Steve, "Score": 4}]我怎樣才能像這樣組合這些字典呢？[{"Name": John, "Score": [1,2]},{"Name": Steve, "Score": [3,4]}]
2 回答
人到中年有點甜
TA貢獻1895條經驗 獲得超7個贊
lst = [{"Name": "John", "Score": 1}, {"Name": "John", "Score": 2}, {"Name": "Steve", "Score": 3}, {"Name": "Steve", "Score": 4}]
out = {}
for d in lst:
out.setdefault(d['Name'], []).append(d['Score'])
out = [{'Name': k, 'Score': v} for k, v in out.items()]
print(out)
印刷：
[{'Name': 'John', 'Score': [1, 2]}, {'Name': 'Steve', 'Score': [3, 4]}]
largeQ
TA貢獻2039條經驗 獲得超8個贊
使用itertools
def combine(group):
out = {}
out['Name'] = group[0]['Name']
score = []
for sub in group:
score.append(sub['Score'])
out['Score'] = score
return out
grouped = map(combine,[list(v) for k,v in groupby(x, lambda x: x['Name'])])
print(list(grouped))
[{'Name': 'John', 'Score': [1, 2]}, {'Name': 'Steve', 'Score': [3, 4]}]
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