[英]how to create a dict of dict of dict of dataframes from list of file paths?
[英]How from dict of list create list of dict
我有dict
:
D = {'a': ['1a', '2a', '3a'], 'c': ['1c', '2c', '3c'], 'b': ['1b', '2b', '3b']}
我想將D
轉換為dict
list
:
L = [{'a':'1a', 'b': '1b', 'c': '1c'}, {'a':'2a', 'b': '2b', 'c': '2c'}, ...]
我試過了:
>>> l = [(k, v) for k, vals in D.items() for v in vals]
>>> map(dict, zip(*zip(*[iter(l)]*4)))
[{'a': '1a', 'c': '1c', 'b': '1b'}, {'a': '2a', 'c': '2c', 'b': '2b'}, ...
我需要更具可讀性的解決方案。
這個怎么樣:
L = [dict(zip(D.keys(), vals)) for vals in zip(*D.values())]
輸出:
>>> print L
[{'a': '1a', 'c': '1c', 'b': '1b'},
{'a': '2a', 'c': '2c', 'b': '2b'},
{'a': '3a', 'c': '3c', 'b': '3b'}]
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