Re: [Tutor] updating a Csv file

2010-10-20 Thread Alan Gauld
"Albert-Jan Roskam" wrote I tried updating the old values with new values of exactly the same length (10 characters), but that didn't work either newLine = [ch for ch in string.letters[0:9]]) Error: line contains NULL byte Id,NaamInstelling,Naam3,Straat,HuisNr,Postcode,Plaats,dummy Th

Re: [Tutor] updating a Csv file

2010-10-20 Thread Albert-Jan Roskam
, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~ --- On Wed, 10/20/10, Dave Angel wrote: From: Dave Angel Subject: Re: [Tutor] updating a Csv file To: "Albert-Jan Roskam" Cc: "Python Mailing List" Dat

Re: [Tutor] updating a Csv file

2010-10-20 Thread Dave Angel
On 2:59 PM, Albert-Jan Roskam wrote: Hi all, How can I update a csv file? I've written the code below, but it does not work ("Error: line contains NULL byte"). I've never tried opening a file in read and write mode (r+) at the same time before, so I suspect that this is the culprit. Should I

Re: [Tutor] updating a Csv file

2010-10-20 Thread Steven D'Aprano
On Wed, 20 Oct 2010 08:05:06 pm Albert-Jan Roskam wrote: > Hi all, > > > > How can I update a csv file? I've written the code below, but it does > not work ("Error: line contains NULL byte"). Please copy and paste (DO NOT re-type, summarize, paraphrase or repeat from memory) the ACTUAL exception,

[Tutor] updating a Csv file

2010-10-20 Thread Albert-Jan Roskam
Hi all, How can I update a csv file? I've written the code below, but it does not work ("Error: line contains NULL byte"). I've never tried opening a file in read and write mode (r+) at the same time before, so I suspect that this is the culprit. Should I instead just open one file, write to