[EMAIL PROTECTED] wrote:
> hi,
>
> I have large txt file with lines like this:
>
> ['DDB0216437'] 1166 1174 9 ZZZ 100
>
> What I want to do is quickly count the number of lines that share a value
> in the 4th column and 5th (i.e. in this line I would count all the line
> that have '9' and 'ZZZ'). Anyone got any ideas for the quickest way to do
> this? The solution I have is really ugly. thanks,
This should get you started. It assumes that there is no whitespace embedded in
the fields. Add error handling and options to taste.
Kent
count = 0
f = open('data.txt')
for line in f:
data = line.split()
if data[3] == '9' and data[4] == 'ZZZ':
count += 1
f.close()
print count
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