CODEWITHSUNDEEP
pythondictionary
Damon
Damon

Reputation: 11

Converting dictionaries in a nested dictionary

I'm trying to convert all values of some dictionaries that are nested in another dictionary.
I want to convert:

{0: {'n': 1}, 1: {'s': 0, 'n': 2}, 2: {'s': 1}}

To this:

{0: {'n': '?'}, 1: {'s': '?', 'n': '?'}, 2: {'s': '?'}}

I tried this:

for key, value in new_dictt:
    new_dictt[key][value] = '?'

But it did not work. I've been googling but have not found a way to convert all values of all dictionaries within another dictionary.

Upvotes: 1

Views: 60

Answers (1)

Jan
Jan

Reputation: 43169

Here we go:

old_dict = {0: {'n': 1}, 1: {'s': 0, 'n': 2}, 2: {'s': 1}}

new_dict = {key: {k: '?' for k in dct} for key, dct in old_dict.items()}
print(new_dict)

Which yields

{0: {'n': '?'}, 1: {'s': '?', 'n': '?'}, 2: {'s': '?'}}

This uses two nested dict comprehensions.

Upvotes: 7

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