Python 按值对包含字典列表的字典进行排序

我有一本以下格式的字典：

{"key1": [{"title":"bla bla", "percentage": "0.3493"},{"title":"bla bla bla", "percentage":"0.293"}],
"key2": [{"title":"bla bla", "percentage": "0.635"},{"title":"bla bla bla", "percentage":"0.987"}]}

因此，基本上它是一个字典，包含字典列表作为值

我想按照百分比字段的降序对其进行排序，因此通过上面的示例，我希望获得：

{"key1": [{"title":"bla bla", "percentage": "0.3493"},{"title":"bla bla bla", "percentage":"0.293"}],
"key2": [{"title":"bla bla bla", "percentage": "0.987"},{"title":"bla bla", "percentage":"0.635"}]}

我还希望获得最高百分比的全球视图。例如：

“关键2”：{“标题”：“bla bla bla”，“百分比”：“0.987”}

“关键2”：{“标题”：“bla bla”，“百分比”：“0.635”}

“关键1”：{“标题”：“bla bla”，“百分比”：“0.3493”}

“关键1”：{“标题”：“bla bla bla”，“百分比”：“0.293”}

---

我已经研究了Python中的各种排序方法，但我仍然不确定如何实现这一点

我们按照key

percentage

的值降序排列字典中每个键的值列表，然后使用字典理解重新创建字典

dct = {"key1": [{"title":"bla bla", "percentage": "0.3493"},{"title":"bla bla bla", "percentage":"0.293"}],
"key2": [{"title":"bla bla", "percentage": "0.635"},{"title":"bla bla bla", "percentage":"0.987"}]}

result = {key: sorted(value, key=lambda x:x['percentage'], reverse=True) for key, value in dct.items()}
print(result)

输出将是

{'key1': [{'title': 'bla bla', 'percentage': '0.3493'}, 
{'title': 'bla bla bla', 'percentage': '0.293'}], 
'key2': [{'title': 'bla bla bla', 'percentage': '0.987'}, 
{'title': 'bla bla', 'percentage': '0.635'}]}

对于全局视图，我们首先更新内部字典，这样就有了

key

属性。 然后，我们通过合并所有值列表，然后按百分比降序对它们进行排序，来创建整个值列表（全局视图）

dct = {"key1": [{"title":"bla bla", "percentage": "0.3493"},{"title":"bla bla bla", "percentage":"0.293"}],
"key2": [{"title":"bla bla", "percentage": "0.635"},{"title":"bla bla bla", "percentage":"0.987"}]}

#Update inner dictionaries with the name of the key for each dictionary
for key, value in dct.items():
    for v in value:
        v.update({'key':key})

global_view = sorted([v for value in dct.values() for v in value], key=lambda x:x['percentage'], reverse=True)

print(global_view)

这里的输出将是

[
{'title': 'bla bla bla', 'percentage': '0.987', 'key': 'key2'}, 
{'title': 'bla bla', 'percentage': '0.635', 'key': 'key2'}, 
{'title': 'bla bla', 'percentage': '0.3493', 'key': 'key1'}, 
{'title': 'bla bla bla', 'percentage': '0.293', 'key': 'key1'}
]