CODEWITHSUNDEEP
python
Percival test
Percival test

Reputation: 131

Python: Combine 2 list of dictionaries

I have this 2 list of dictionaries

a = [{'Month': 'Sep 2021', 'Like': 6}, {'Month': 'Oct 2021', 'Like': 7}]
b = [{'Month': 'Aug 2021', 'View': 20}, {'Month': 'Oct 2021', 'View': 8}]

I want this result

c = [{'Month': 'Aug 2021', 'Like': 0, 'View': 20}, 
     {'Month': 'Sep 2021', 'Like': 6, 'View': 0}, 
     {'Month': 'Oct 2021', 'Like': 7, 'View': 8}]

I tried this one

d = defaultdict(dict)
for l in (a, b):
    for elem in l:
        d[elem['Month']].update(elem)
c = d.values()

but the result is this

dict_values([{'Month': 'Aug 2021', 'View': 20},
             {'Month': 'Sept 2021', 'Like': 6},
             {'Month': 'Oct 2021', 'Like': 7, 'View': 8}])

How can I add 0 if there is no value?

Thanks!

Upvotes: 2

Views: 79

Answers (1)

Percival test
Percival test

Reputation: 131

As per @kaya3 in the comments, I get the result by using

 d = defaultdict(lambda: {'Like': 0, 'View': 0})

Upvotes: 3

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