Python – Dicts: how to find out what the key(s) with the highest int as value is/are

In a dict, I want to find all keys that have the highest value, so in this example not only key ‘D’, but also key ‘B’. How do I do this (in the most efficient way)?

some_dict = {
'A': 2, 
'B': 18, 
'C': 7, 
'D': 18
}

highest_keys(some_dict)

# Result should be: ['B', 'D'] or {'B': 18, 'D': 18}, both options would work

max only gives the last key with the highest value, but I need all.
Thank you in advance! 🙂

>Solution :

You may find the highest value, and then retrieve the keys:

highval = max(somedict.values())
[k for k in somedict if somedict[k] == highval]