Here are python skeleton codes exLst.py and exPal.py, and inL, an input file for exLst.py.
Download these and make exLst.py and exPal.py executable.

Using the Python tutorial, play with exLst.py to make yourself familiar with simple IO, strings and (array) lists.
Command line call:
exLst.py inL

Then use exPal.py as a starting point to implement a palindrome checker.
Command line call, eg
exPal.py racecar apples "A man, a plan a canal, Panama" "madam I'm Adam"
should reply:
racecar : True
apples : False
A man, a plan a canal, Panama : True
madam I'm Adam : True