# https://www.globalsino.com/ICs/page4853.html
# Euclidean distance

import math
def euclideanDistance(instance_1, instance_2, length):
    distance = 0
    for x in range(length):
        distance += pow((instance_1[x] - instance_2[x]),2)
        return math.sqrt(distance)
    
data_1 = [2, 2, 2, 'a']
data_2 = [4, 4, 4, 'b']
distance = euclideanDistance(data_1, data_2, 3)
print('Distance is: ' + repr(distance))