Python Data Structure Assignment_9.4 || Week 5

9.4 Write a program to read through the mbox-short.txt and figure out who has sent the greatest number of mail messages. The program looks for 'From ' lines and takes the second word of those lines as the person who sent the mail. The program creates a Python dictionary that maps the sender's mail address to a count of the number of times they appear in the file. After the dictionary is produced, the program reads through the dictionary using a maximum loop to find the most prolific committer.

Code:

name = raw_input("Enter file:")

if len(name) < 1 : name = "mbox-short.txt"

handle = open(name)

count = 0

d = dict()

for line in handle:

    

    if not line.startswith('From'):continue

    

    line = line.split()

    

    if line[0] == 'From':

        

        line1 =  line[1]

       

        for word in line1.split():

            

            if word not in d:

                

                d[word] = 1

            else:

                d[word]+=1

        

        count = count + 1

        

maximum = None

k = None

for key,value in d.items():

    

    if maximum is None or value>maximum:

        maximum = value

        k=key

print(k,maximum)