7.2 Write a program that prompts for a file name, then opens that file and reads through the file, looking for lines of the form: X-DSPAM-Confidence: 0.8475 Count these lines and extract the floating point values from each of the lines and compute the average of those values and produce an output as shown below. Do not use the sum() function or …

gistfile1.txt

# Use the file name mbox-short.txt as the file name
fname = raw_input("Enter file name: ")
fh = open(fname)
count = 0
total = 0
for line in fh:
    if not line.startswith("X-DSPAM-Confidence:") : continue
    t=line.find("0")
    number= float(line[t:])
    count = count + 1
    total = total + number

average = total/count
print "Average spam confidence:",average

guys use this:
fname = input("Enter file name: ")
fh = open(fname)
count = 0
total = 0
for line in fh:
if line.startswith("X-DSPAM-Confidence:"):
t = line.find('0')
number = float(line[t:])
count = count + 1
total = total + number
else:
continue
average = total/count
print("Average spam confidence:", average)