How to split array of dictionaries in Python?

Question

[{50: 2, 75: 3, 99: 4}, {50: 5, 75: 6, 99: 7}, {50: 8, 75: 9, 99:10}] 

The following is an array of dictionaries in Python. I want to convert the array into following three arrays in Python:

[2, 5, 8] # corresponding to 50.
[3, 6, 9] # corresponding to 75.
[4, 7, 9] # corresponding to 99. 

Answer 1

One way may be to use defaultdict such that it is dictionary with values of list corresponding to keys:

from collections import defaultdict

my_list = [{50: 2, 75: 3, 99: 4}, {50: 5, 75: 6, 99: 7}, {50: 8, 75: 9, 99:10}] 
my_dict_list = defaultdict(list)

for value in my_list:
    for k,v in value.items():
        my_dict_list[k].append(v)

And the list of values for each can be accessed by keys as below:

print(my_dict_list[50])