Bubble Sort

Python:
for i in range (start_index,end_index):
xxxxx

a = [18,8,7,2,3,6,1,1]

def BubbleSort(num):
    
    for i in range(len(num)):   #for first pass i =5
        for j in range(i+1,len(num)):     # 5 compared with 1,4,2,8 , total 4 number so j =4  e.g. j=i-1 e.g. num[1]=5  ,range of j = num[1]-1 = 4
            if num[i]>num[j]:                      # if i > j, swap
                temp=num[i]          # store i value
                num[i]=num[j]       #set i value = j value
                num[j]=temp         #set j value = temp's value (i value)
            print (num)
            print ("Loop {}{}".format(i,j))
    return num
    
print (BubbleSort(a))
# fist loop: [1,4,2,5,8]
# second loop: [1,]