sort by column a csv file case insensitive

Mon Apr 16 01:11:09 EDT 2012

Hi all,
I am trying to sort, in place, by column, a csv file AND sort it case
insensitive.
I was trying something like this, with no success:
import csv
import operator
def sortcsvbyfield(csvfilename, columnnumber):
 with open(csvfilename, 'rb') as f:
 readit = csv.reader(f)
 thedata = list(readit)
 thedata = sorted(thedata, key = lambda x:
(operator.itemgetter(columnnumber) ,x[0].lower())) #!!!
 with open(csvfilename, 'wb') as f:
 writeit = csv.writer(f)
 writeit.writerows(thedata)
The line marked is the culprit.
Any help is greatly appreciated.
Thanks,
Lee