Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.fsmpi.rwth-aachen.de!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed3a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <python-python-list@m.gmane.org>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.000
X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'subject:text': 0.05; 'that?': 0.05; 'intermediate': 0.07; 'iterate': 0.09; 'lines:': 0.09; 'lost.': 0.09; 'newline': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:files': 0.09; 'trailing': 0.09; 'cheers': 0.12; '"r")': 0.16; 'files:': 0.16; 'line)': 0.16; 'received:80.91.229.3': 0.16; 'received:dip0.t-ipconnect.de': 0.16; 'received:plane.gmane.org': 0.16; 'received:t-ipconnect.de': 0.16; 'wrote:': 0.18; 'print': 0.22; 'header:User-Agent:1': 0.23; 'replace': 0.24; 'file.': 0.24; 'header:X-Complaints-To:1': 0.27; 'correct': 0.29; 'code': 0.31; 'getting': 0.31; 'lines': 0.31; '"",': 0.31; 'file:': 0.31; 'indentation': 0.31; 'file': 0.32; 'text': 0.33; 'open': 0.33; 'comment': 0.34; 'there,': 0.34; 'subject:with': 0.35; 'method': 0.36; 'list': 0.37; 'to:addr :python-list': 0.38; 'to:addr:python.org': 0.39; 'skip:p 20': 0.39; 'received:org': 0.40; 'how': 0.40; 'remove': 0.60; 'read': 0.60
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: Peter Otten <__peter__@web.de>
Subject: Re: reading text files with indentation
Date: Mon, 28 Jul 2014 09:45:33 +0200
Organization: None
References: <53D5ECD0.8010702@enabled.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 7Bit
X-Gmane-NNTP-Posting-Host: p57bd8439.dip0.t-ipconnect.de
User-Agent: KNode/4.11.5
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.12380.1406533557.18130.python-list@python.org>
Lines: 42
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1406533557 news.xs4all.nl 2853 [2001:888:2000:d::a6]:35097
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:75302

Noah wrote:

> Hi there,
> 
> The following code I am using to read in lines from a text file.  The
> indentation of the text is getting lost.  How can I correct that?
> 
> 
>      for file in files:
>        with open (file, "r") as file:
> lines = file.readlines()
> 
> for line in lines:
>              line = re.sub("#.*", "", line)
>              line = line.strip()
>              policy_lines.append(line)
>              print line
> 
> Cheers

for line in files:
    with open(file) as lines:
        for line in lines: # you can iterate over the file directly;
                           # no need for the intermediate list built by
                           # the readlines() method
            line = line.partition("#")[0] # remove comment
            line = line.rstrip() # remove trailing whitespace
            policy_lines.append(line)
            print line


If you want to keep trailing whitespace other than the newline replace

line = line.rstrip()

with 

line = line.rstrip("\n\r")