So I've just started playing around with python. My first script was to spool through a pipe deliminated csv.

I noticed this language is slightly more strict than PHP I receive an error when trying to assign a non existant variable to a new list.

Code Python:
#open csv file
ifile  = open('/tmp/file.dat', "rb")
reader = csv.reader(ifile,delimiter='|')
for row in reader:
     op = {
          'column': row[4]

If row[4] happens to be null for that row, then it will error out. I've come across a few solutions such as setdefault. But I'm curious how some of your setups might be, especially for something dynamic like spooling a csv.