[Tutor] CSV module?

[Kent Johnson]

Liam Clarke wrote:
> Kent, 
> 
> As always, you are a beam of light upon the darkness of my illogicity
> and/or ignorance.

Aw shucks...

> 
> You're right, I wasn't reopening the inputfile after doing
> readlines(), which I was doing each time I opened the file! So, I
> guess there's a pointer for each file object, that readline
> increments.

Yes, an open file has a current position. f.readlines() reads until the 
end of file and leaves the file position at the end. f.tell() tells you 
the current position and f.seek() lets you set it. Unless you need the 
raw line data from the file as well as the lists from csv.reader, the 
simplest thing is just to get rid of the readlines().

Kent