from sys import argv

#Provides the user with two parameters to type before running the script.
script, filename = argv

# Opens whatever the user chooses that 'filename' represents.
txt = open(filename)

# replaces %r with the 'filename' This also places the 'filename' in quotes.
print "Here's your file %r" % filename

# This allows 'txt' which is 'open(filename)' to run
print txt.read()

print "I'll also ask you to type it again:"

# Allows the user to type in the filename again
file_again = raw_input("> ")

# File_again will equal whatever the user chooses. file again will now equal txt again
txt_again = open(file_again)

# This line allows the txt_again code to run
print txt_again.read()