I'm currently trying to extract some data between 2 lines of an input file
using Python. the infile is set up such that there is a line -START- where I
need the next 10 lines of code if and only if the -END- condition occurs before
the next -START-. The -START- line occurs many times before the -END-. Heres a
general example of what I mean:
blah
blah
-START-
10 lines I DONT need
blah
-START-
10 lines I need
blah
blah
-END-
blah
blah
-START-
10 lines I dont need
blah
-START-
.... and so on and so forth
so far I have only been able to get the -START- + 10 lines for every iteration,
but am at a total loss when it comes to specifying the condition to only write
if the -END- condition comes before another -START- condition. I'm a bit of a
newb, so any help will be greatly appreciated.
heres the code I have for printing the -START- + 10 lines:
in = open('input.log')
out = open('output.txt', 'a')
lines = in.readlines()
for i, line in enumerate(lines):
if (line.find('START')) > -1:
out.write(line)
out.write(lines[i + 1])
out.write(lines[i + 2])
out.write(lines[i + 3])
out.write(lines[i + 4])
out.write(lines[i + 5])
out.write(lines[i + 6])
out.write(lines[i + 7])
out.write(lines[i + 8])
out.write(lines[i + 9])
out.write(lines[i + 10])
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