CODEWITHSUNDEEP
python
Jacob
Jacob

Reputation: 359

Building Dictionary within Dictionary

I have a list of dictionaries that I need to transform:

my_dictionary = {}
my_array = [{'first': 'this'}, {'second': 'this'}]

What I want is to key my_dictionary, and then have sub-dictionaries that are equal to the items in my_array, like so:

my_dictionary = {'red' : {'first': 'this', 'second' : 'this'}}

What I had, in theory was:

for i in my_array:
    my_dictionary['red'] = dict(i.items())

but I'm getting an error of:

TypeError: 'dict' object is not callable

I'm realizing though, it's probably because after the first iteration, I'm not creating a dictionary, I'm simply adding to it. Is there a way for me to pull the key from each item in my_array so that I can specify it more like:

for i in my_array:
    my_dictionary['red'][key_from_item_in_my_array] = my_array[key_from_item_in_my_array]

but I'm not sure how to do that.

Upvotes: 0

Views: 176

Answers (1)

Jeremy Weirich
Jeremy Weirich

Reputation: 387

Seems like you want to merge the dictionaries array into a single dictionary and then put that dictionary in another one. The merge is easy:

new_dict = {}
for i in my_array:
    new_dict.update(i)

Now you can put your merged dictionary into your second one:

my_dictionary = {}
my_dictionary["red"] = new_dict

This produces:

my_dictionary = {'red': {'first': 'this', 'second': 'this'}}

Upvotes: 3

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