187braintr...@berkeley.edu wrote:
From: MRAB <pyt...@mrabarnett.plus.com
<mailto:pyt...@mrabarnett.plus.com>>
To: python-list@python.org <mailto:python-list@python.org>
Date: Wed, 16 Jun 2010 03:06:58 +0100
Subject: Re: Python editing .txt file
187braintr...@berkeley.edu <mailto:187braintr...@berkeley.edu> wrote:
I am trying to write a program in Python that will edit .txt log
files that contain regression output from R. Any thoughts or
suggestions would be greatly appreciated.
How's this:
input_file = open(input_path)
output_file = open(output_path, "w")
for line in input_file:
if line.startswith("factor("):
open_paren = line.find("(")
close_paren = line.find(")")
variable = line[open_paren + 1 : close_paren]
output_file.write("*** Factors for %s ***\n" % variable)
prefix = line[ : close_paren + 1]
while line.startswith(prefix):
line = input_file.readline()
output_file.write(line)
input_file.close()
output_file.close()
Thank you very much for your reply. This code works perfectly, except
that the "line = input_file.readline()" part causes an error:
"ValueError: Mixing iteration and read methods would lose data." I've
been working on figuring out a work around. Do you have any ideas?
You could try replacing:
line = input_file.readline()
with:
line = input_file.next()
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