On 1/13/2010 9:49 AM Paul Melvin said...
Hi,

I have a file generated from a webpage.

I want to search that file for a specific keyword, in my case 'NEW'.

Once I have found that keyword I want to retrieve information below it, e.g.
web link, size of file etc.

When I have this information I move off until I find another 'NEW' and the
process starts all over.

Please can someone give me some pointers on how to do this.

I can find the line containing 'NEW' which I get using a simple for loop on
every line in the file, but how do I then traverse the next x amount of
lines, taking what I want until either the next 'NEW' or eof.

e.g.

for line in file:
        if re.findall('NEW', line)      # or search
                list.append(line)               # to do something to later
<don't use list as i shadows the builtin list>


I cannot 'get' to the following lines because I would need to get out of the
loop.

How about (untested):

additionalLines = 3
remainingLines = 0

for line in file:
  if 'NEW' in line or remainingLines:
    mylist.append(line)
    if not remainingLines:
      remainingLines = additionalLines
    else:
      remainingLines -= 1

Emile


I did use enumerate and was wondering if I could use the line number, or
maybe I could use an re iterator.

Any advice would be much appreciated.

Thanks

paul


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