Add element of list in dictionary of other list at the same index

Question

I have a list of values, and a list of dictionaries such as:

my_values = ["A", "B", "C"]
my_dicts = [{...}, {...}, {...}]

I would like to unpack my values into my dictionaries so that the value in position n goes in the nth dictionary, such as:

my_new_dicts = [{"value": "A", ...}, {"value": "B", ...}, {"value": "C", ...}]

My list/dict comprehension attempts so far yield a new list of n*n dictionaries.

Answer 1

One way to merge two dicts d1 and d2 is {**d1, **d2}. Instead of **d2, or in addition to **d2, you can also explicitly write the new values you want to add to d1.

And then using a list comprehension for my_new_dicts:

my_new_dicts = [{**d, 'value': v} for d, v in zip(my_dicts, my_values)]