check if number is perfect cube python

1x = int(input())
2print(int(round(x ** (1. / 3))) ** 3 == x)

1def is_cube(n):
2    guess = n**(1.0/3.0)
3    iguess = int(guess)
4    if iguess * iguess * iguess == n:
5        print(True, "it's cubed root is", iguess)
6        return
7    iguess = iguess + 1
8    if iguess * iguess * iguess == n:
9        print(True, "it's cubed root is", iguess)
10        return
11    print(False, "it's cubed root is", guess)
12    
13is_cube(9) # No
14is_cube(27) # Yes