Is it possible to optimize this code?

Question

Python

I can write code, but now I am learning to write competent and optimized code.
This program takes any word and writes to the dictionary how many times each letter of the word was repeated, but is it possible to write better (shorter) using for example **kwargs?

word = input()
lib = {}
for letter in word:
    lib[letter] = word.count(letter)
print(lib)

# hello
# {'h': 1, 'e': 1, 'l': 2, 'o': 1}

Answer 1

from collections import Counter
lib = Counter(input('Введите слово:\n'))

Answer 2

Dictionary generator ,_,