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. You can download the sample data at h…

7.2.py

sum = 0.0
count = 0
fname = open(raw_input("Enter file name: "))
for line in fname:
    if not line.startswith("X-DSPAM-Confidence:") : continue
    sum = sum + float(line[line.find(" ")+1:])
    count = count + 1
print "Average spam confidence:",sum/float(count)