dict.py

"""
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."""
fname = input("Enter file name: ")
fh = open(fname)
counts = dict()
for line in fh:
    if not line.startswith('From:'):
        continue
    w = line.rstrip()
    words = w.split(',')
    for word in words:
        counts[word] = counts.get(word,0) + 1
bigcount = None
bigword = None 

for word,count in counts.items():
    if bigcount is None or count > bigcount:
        bigword = word
        bigcount = count
print("Most repeted email address is:",bigword[6:].strip(),".","Toal number of email is:", bigcount)