How can I combine dictionaries with the same keys?

Question

I have a list of dictionaries like so:

dicts = [
    {\'key_a\': valuex1,
     \'key_b\': valuex2,
     \'key_c\': valuex3},

    {\'key_a\': valuey1,
     \         


        

Answer 1

If you are happy to use a 3rd party library you can use Pandas. The pd.DataFrame constructor accepts a list of dictionaries directly:

import pandas as pd

res = pd.DataFrame(dictList).to_dict(orient='list')

{'key_a': ['valuex1', 'valuey1', 'valuez1'],
 'key_b': ['valuex2', 'valuey2', 'valuez2'],
 'key_c': ['valuex3', 'valuey3', 'valuez3']}