Sum Values Based on Keys in a Separate Python List

Question

I have a dictionary called hits below.

hits = {"The Weeknd": 6, "Maroon 5": 0, "Justin Bieber": 8, "Post Malone": 5}

I also have a separate, standalone list titled artists:

artists = ["The Weeknd", "Justin Bieber"]

I'd like to sum the total values in the hits dictionary based on the keys listed in the artists list (i.e., answer would be 6 + 8 = 14).

You just want something like sum(hits[artist] for artist in artists) — juanpa.arrivillaga
– juanpa.arrivillaga, Commented Jun 19, 2022 at 6:10

Thomas Hilger · Accepted Answer · 2022-06-19 06:09:58Z

1

sum([v for k,v in hits.items() if k in artists ])

answered Jun 19, 2022 at 6:09

Thomas Hilger

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1 Comment

Thanks! I see sum(hits[artist] for artist in artists) also works, which looks to be more efficient/easy on the eyes. :-)