Bubble Sort

from random import randint
from random import sample

def generateRandomList(numberOfElements):
    elements = []
    for i in range(0,numberOfElements):
        value = randint(1,100)
        elements.append(value)
    return elements

def generateRandomAlphabet():
    letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    elements = sample(letters,26)
    return elements

def bubbleSort(elements):
    print('Bubble Sort')
    swapped = True
    n = len(elements) - 1
    while swapped:
        swapped = False
        for i in range(n):
            if elements[i] > elements[i+1]:
                elements[i], elements[i+1] = elements[i+1],elements[i]
                swapped = True
        n -= 1
    return elements

#elements = generateRandomList(20)
elements = generateRandomAlphabet()
elementsSorted = bubbleSort(elements[:])
print('Original List: {}'.format(elements))
print('Sorted List  : {}'.format(elementsSorted))