id重复的词典合并列表-python3
我有一份字典清单:id重复的词典合并列表-python3,python,list,dictionary,merge,duplicates,Python,List,Dictionary,Merge,Duplicates,我有一份字典清单: [{"id":"1", "name":"Alice", "age":"25", "languages":"German"}, {"id":"1", "name":"Alice", "age":"25", "languages":"French"}, {"id":"2", "name":"John", "age":"30", "languages":"English"}, {"id":"2", "name":"John", "age":"30", "languages":
[{"id":"1", "name":"Alice", "age":"25", "languages":"German"},
{"id":"1", "name":"Alice", "age":"25", "languages":"French"},
{"id":"2", "name":"John", "age":"30", "languages":"English"},
{"id":"2", "name":"John", "age":"30", "languages":"Spanish"}]
我希望最终结果是(我只在检查重复项时考虑id):
看着类似的问题,我认为使用集合可能是答案,但没有能够正确地实现它
提前感谢您的回答 这里有点冗长,有助于了解结构。当然,你可以做一些很酷的lambda的东西来解决这个问题,并将理解列为更“pythonic”。但这里有一个快速的解决方案
# Set up initial data
unmerged = [
{"id":"1", "name":"Alice", "age":"25", "languages":"German"},
{"id":"1", "name":"Alice", "age":"25", "languages":"French"},
{"id":"2", "name":"John", "age":"30", "languages":"English"},
{"id":"2", "name":"John", "age":"30", "languages":"Spanish"}]
# merge the data by your composite key of id-name-age
merged = {}
for entry in unmerged:
entry_id = entry['id']
entry_name = entry['name']
entry_age = entry['age']
entry_languages = entry['languages']
composite_key = entry_id + entry_name + entry_age
if composite_key in merged:
merged[composite_key]['languages'].append(entry_languages)
else:
merged[composite_key] = {
'id': entry_id,
'name': entry_name,
'age': entry_age,
'languages': [entry_languages]
}
# reconstruct your list with just your unique entries
cleaned = []
for key, value in merged.items():
print(key, value)
cleaned.append({
'id': value['id'],
'name': value['name'],
'age': value['age'],
'languages': ', '.join(value['languages']) # string join langauges by ", "
})
for clean in cleaned:
print(clean)
然后提供最终输出,其中是合并条目列表:
{'id': '1', 'name': 'Alice', 'age': '25', 'languages': 'German, French'}
{'id': '2', 'name': 'John', 'age': '30', 'languages': 'English, Spanish'}
谢谢,如果有帮助请告诉我 谢谢你花时间,我很感激-它工作得很好。如果你接受这是正确的答案,请将其标记为已接受。谢谢
{'id': '1', 'name': 'Alice', 'age': '25', 'languages': 'German, French'}
{'id': '2', 'name': 'John', 'age': '30', 'languages': 'English, Spanish'}