Python3: Narcissistic Numbers

Kata

https://www.codewars.com/kata/narcissistic-numbers/python

A Narcissistic Number is a number of length n in which the sum of its digits to the power of n is equal to the original number. If this seems confusing, refer to the example below.

Ex: 153, where n = 3 (number of digits in 153)
13 + 53 + 33 = 153

Write a method is_narcissistic(i) (in Haskell: isNarcissistic :: Integer -> Bool) which returns whether or not i is a Narcissistic Number.

My solution

def is_narcissistic(i):
    return sum(int(x)**(len(str(i))) for x in str(i)) == i