Computer Programming

Exercise 5: Write a program to read through the mail box data and when you

find line that starts with From, you will split the line into words using the split

function. We are interested in who sent the message, which is the second word on

the From line.

From stephen.marquard@uct.ac.za Sat Jan 5 09:14:16 2008

You will parse the From line and print out the second word for each From line,

then you will also count the number of From (not From:) lines and print out a

count at the end.

This is a good sample output with a few lines removed:

python fromcount.py

Enter a file name: mbox-short.txt

stephen.marquard@uct.ac.za

louis@media.berkeley.edu

zqian@umich.edu

[...some output removed...]

ray@media.berkeley.edu

cwen@iupui.edu

cwen@iupui.edu

cwen@iupui.edu

There were 27 lines in the file with From as the first word