[Tutor] Files and such 2

[Prospero]

Greetings!

Thanks to Danny, I now have a piece of code that will do most of what I want for
one line, as follows:-

x = open("numbers.txt","r")
foo = x.readlines()
print foo
bar = foo[0]
print bar
chunks = bar.split(',')
print chunks[0]
a = chunks[0]
print a

(Then it does some other stuff to what it has now got)

x.close()

However, I need to be able to do this for all lines in the file, going forward
for one process and backward for another. Is there a simple way to count the
lines?

All the best,

Prospero.