Forwarding to the list... -------- Original Message -------- Subject: Re: [Tutor] reading and writing with csv then appending some data to a specific line Date: Mon, 5 Nov 2007 14:54:49 +0100 From: pierre cutellic <[EMAIL PROTECTED]> To: Kent Johnson <[EMAIL PROTECTED]> References: <[EMAIL PROTECTED]> <[EMAIL PROTECTED]>
many thanks, but i don't really want to erase the content of the file i'm writing to. This script was a first step for me to understand how to write to a file at a given line of the file without erasing its content. I didn't really understood the code you linked me: http://mail.python.org/pipermail/python-list/2000-August/048839.html . when i'm using seek(), data is appended to the end of the file.:( On Nov 5, 2007 2:54 AM, Kent Johnson <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote: pierre cutellic wrote: > Hi, > I wrote this script to select some data from a csv file. > Actually it writes it into a file but i would like to append it into an > existing one to a specific line without removing existing code. > does the open(' filename.csv','a+') can do that? > > ag = elem[0] > ag.split(";") Here I think you want ag = ag.split(';') split() does not split the string in place, it returns a new list with the split elements. Also you are opening the file for writing (which will erase the contents) before you read it. Other than that your code looks OK. You might want to try writing it without functions, I think they may be confusing you a bit and they are not really needed here. Kent -- Pierre Cutellic____________ OO 33 6 15 67 17 85 [EMAIL PROTECTED] <http://gmail.com> _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
