This week's homework is self explanatory.
Write a program that, given a subdirectory (an email folder), creates a table of counts of all the mails sent by the folder's owner to recipients within Enron. You will have to adapt the code Mark has given you, and remember to code defensively; think about how you can build in checks to see that your program is giving you the right answer.
The mail files are located on lab-compute in the 202A. Please have all of your output print to your own directory, not to the data directory because this causes a mess.