import math

# Example points in 3-dimensional space...
x = (4, 5, 6)
y = (7, 8, 9)

# Given that x and y are both tuples in k-dimensional space, we
# can calculate the Euclidean distance from x to y as follows...
distance = math.sqrt(sum([(a - b) ** 2 for a, b in zip(x, y)]))