How can I include the upper bound in range() function? I can't add by 1 because my for-loop looks like:

for x in range(1,math.floor(math.sqrt(x))):
    y = math.sqrt(n - x * x)

But as I understand it will actually be 1 < x < M where I need 1 < x <= M Adding 1 will completely change the result. I am trying to rewrite my old program from C# to Python. That's how it looked in C#:

for (int x = 1; x <= Math.Floor(Math.Sqrt(n)); x++)
    double y = Math.Sqrt(n - x * x);