hfile = open('test.txt')
print(hfile.read())

xfile = open('mbox.txt')
count = 0
for line in xfile :
    count = count + 1
print (count)

number = 0 
count = 0
xfile = open('mbox-short.txt')
for line in xfile :
    if line.startswith('X-DSPAM-Confidence') :
        position = line.find(':')
        number = number + float(line[position + 1 :])
        count = count + 1
print('Average Spam Confidence:',float(number)/float(count))

xfile = open('mbox-short.txt')
for line in xfile :
    line = line.rstrip()
    if not line.startswith('From:') :
        continue
    if not '@uct.ac.za' in line :
        continue
    print (line)
    

i = 0
friends = ['jose', 'steve', 'allan']

for friend in friends :
    print ("Hello:", friend.upper())

for i in range(len(friends)) :
    x = friends[i] 
    i = i + 1
    print ("Hello", friend)