Return key according to value of python dictionary

Question

I have a Python dictionary say

d = {"david":30, "vivian":40, "tom":20,"echo":40}

My goal is:

1. To return the key with the largest value.
2. In case there is a tie in the value, the key with the shortest length (number of letters) will be prioritized. So, in this case, "echo" will be returned.

I can achieve first goal with:

max_key = max(d, key=d.get)

How can I achieve the second goal?

Answer 1

There may be a more concise way to do this but this seems to work:

d = {"david":30, "vivian":40, "tom":20,"echo":40}

print(sorted([(v, k) for k, v in d.items()], key=lambda x: (x[0], -len(x[1])))[-1])

Output:

(40, 'echo')