[FIXED] Getting key from value in dictionary

Issue

I need to figure out which key has the highest value. The only way I can think of doing that is making a list of values and finding max value from the list to get the highest value. But how do I correlate that value to the key in the dictionary?

        d = {}
        for i in range(len(names)):
            d[i] = len(names[i])
        a = max(d.values())

I need to get keys from the values.

Solution

You can use the max function with a custom key argument:

my_dict = {'a': 10, 'b': 5, 'c': 20, 'd': 15}

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

print("Key with the highest value:", max_key)

If you dont want to use any inbuilt function like max Refer the below example :

my_dict = {'a': 10, 'b': 5, 'c': 20, 'd': 15}

max_key = None
max_value = float('-inf')

for key, value in my_dict.items():
    if value > max_value:
        max_value = value
        max_key = key

print("Key with the highest value:", max_key)

Answered By - Selaka Nanayakkara