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Newsgroups: comp.lang.python
Date: Tue, 19 Mar 2013 23:14:54 -0700 (PDT)
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Subject: Re: Need help in extracting lines from word using python
From: razinzamada@gmail.com
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Xref: csiph.com comp.lang.python:41571

Thanks DAVE

On Tuesday, March 19, 2013 8:24:24 PM UTC+5:30, Dave Angel wrote:
> On 03/19/2013 10:20 AM, razinzamada@gmail.com wrote:
>=20
> > I'm currently trying to extract some data between 2 lines of an input f=
ile
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>=20
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> Your subject line says "from word".  I'm only guessing that you might=20
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> mean Microsoft Word, a proprietary program that does not, by default,=20
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> save text files.  The following code and description assumes a text=20
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> file, so there's a contradiction.
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>=20
>=20
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> > using Python. the infile is set up such that there is a line -START- wh=
ere I need the next 10 lines of code if and only if the -END- condition occ=
urs before the next -START-. The -START- line occurs many times before the =
-END-. Heres a general example of what I mean:
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> >
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>=20
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> In other words, you want to scan for -END-, then go backwards to -START-=
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> and use the first ten of the lines between?  Try coding it that way, and=
=20
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> perhaps it'll be easier.
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>=20
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> You also need to consider (and specify behavior for) the possibility=20
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> that start and end are less than 10 lines apart.
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>=20
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> > blah
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> > blah
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> > -START-
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> > 10 lines I DONT need
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> > blah
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> > -START-
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> > 10 lines I need
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> > blah
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> > blah
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> > -END-
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> > blah
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> > blah
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> > -START-
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> > 10 lines I dont need
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> > blah
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> > -START-
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> >
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> > .... and so on and so forth
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> >
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> > so far I have only been able to get the -START- + 10 lines for every it=
eration, but am at a total loss when it comes to specifying the condition t=
o 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.
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> >
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> >
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> > heres the code I have for printing the -START- + 10 lines:
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> >
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> >      in =3D open('input.log')
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> >      out =3D open('output.txt', 'a')
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> >
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> >      lines =3D in.readlines()
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> >          for i, line in enumerate(lines):
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> >              if (line.find('START')) > -1:
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> >                  out.write(line)
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> >                  out.write(lines[i + 1])
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> >                  out.write(lines[i + 2])
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> >                  out.write(lines[i + 3])
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> >                  out.write(lines[i + 4])
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> >                  out.write(lines[i + 5])
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> >                  out.write(lines[i + 6])
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> >                  out.write(lines[i + 7])
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> >                  out.write(lines[i + 8])
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> >                  out.write(lines[i + 9])
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> >                  out.write(lines[i + 10])
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>=20
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>      or just        out.write(lines[i:i+11)     to write out all 11 of th=
em.
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> >
>=20
>=20
>=20
>=20
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> --=20
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> DaveA