7 kyu You're a square!.py

"""
https://www.codewars.com/kata/54c27a33fb7da0db0100040e/train/python

A square of squares

You like building blocks. You especially like building blocks that are squares. And what you even like more, is to arrange them into a square of square building blocks!

However, sometimes, you can't arrange them into a square. Instead, you end up with an ordinary rectangle! Those blasted things! If you just had a way to know, whether you're currently working in vain… Wait! That's it! You just have to check if your number of building blocks is a perfect square.
Task

Given an integral number, determine if it's a square number:

    In mathematics, a square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself.

The tests will always use some integral number, so don't worry about that in dynamic typed languages.
Examples

-1  =>  false
 0  =>  true
 3  =>  false
 4  =>  true
25  =>  true
26  =>  false
"""


def is_square(n):  
    if n < 0:
        return False
      
    return n ** 0.5 % 1 == 0