Python data structures: Assignment 9.4

Coursera: Python data structures
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.

Solution:

name = input("Enter file:")

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

handle = open(name)

count = dict()

for line in handle:

    word = line.split()

    if line.startswith('From '):

        count[word[1]] = count.get(word[1], 0) + 1

largest = 0

email = ''

for key in count:

    if  count[key] > largest:

        largest = count[key]

        email = key

print(email, largest)

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