I have a nested dictionary like this:

d = {'A': {'A': 0.11, 'C': 0.12, 'D': 1.0}, 'B': {'B': 0.13, 'C': 0.14}}

I want to generate this output where in values only the list of keys of inner dictionary are selected.

output dictionary

output = {'A':['A', 'C', 'D'], 'B':['B', 'C']}

Is there any way to do?

>Solution :

You can pass each sub-dict to the list constructor to convert the keys to a list:

output = {k: list(v) for k, v in d.items()}