Exercise 1: Write a program to read through a file and print the contents of the file (line by line) all in upper case. Executing the program will look as follows:
python shout.py Enter a file name: mbox-short.txt FROM STEPHEN.MARQUARD@UCT.AC.ZA SAT JAN 5 09:14:16 2008 RETURN-PATH: POSTMASTER@COLLAB.SAKAIPROJECT.ORG RECEIVED: FROM MURDER (MAIL.UMICH.EDU [141.211.14.90]) BY FRANKENSTEIN.MAIL.UMICH.EDU (CYRUS V2.3.8) WITH LMTPA; SAT, 05 JAN 2008 09:14:16 -0500 ... You can download the file from www.py4e.com/code3/mbox-short.txt
Exercise 2: Write a program to prompt for a file name, and then read through the file and look for lines of the form:
X-DSPAM-Confidence: 0.8475 When you encounter a line that starts with “X-DSPAM-Confidence:” pull apart the line to extract the floating-point number on the line. Count these lines and then compute the total of the spam confidence values from these lines. When you reach the end of the file, print out the average spam confidence.
Enter the file name: mbox.txt Average spam confidence: 0.894128046745
Enter the file name: mbox-short.txt Average spam confidence: 0.750718518519 Test your file on the mbox.txt and mbox-short.txt files.