Python - Flatten the list of dictionaries

Question

List of dictionaries:

data = [{
         \'a\':{\'l\':\'Apple\',
                \'b\':\'Milk\',
                \'d\':\'Meatball\'},
         \'b\':{\'favou         


        

Answer 1

If you have nested dictionaries with only 'a' and 'b' keys, then I suggest the following solution I find fast and very easy to understand (for readability purpose):

L = [x['a'] for x in data]
b = [x['b'] for x in data]

for i in range(len(L)):
    L[i].update(b[i])

# timeit ~1.4

print(L)