Return-Path: <python@mrabarnett.plus.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.020
X-Spam-Evidence: '*H*': 0.96; '*S*': 0.00; 'example:': 0.03; 'attribute': 0.07; 'string': 0.09; '23,': 0.16; 'filename.': 0.16; 'from:addr:mrabarnett.plus.com': 0.16; 'from:addr:python': 0.16; 'from:name:mrab': 0.16; 'line)': 0.16; 'message- id:@mrabarnett.plus.com': 0.16; 'subject:Problem': 0.16; 'thanks,': 0.17; 'wrote:': 0.18; 'trying': 0.19; 'file,': 0.19; '(the': 0.22; 'header:User-Agent:1': 0.23; 'error': 0.23; 'skip': 0.24; 'header:In-Reply-To:1': 0.27; 'object.': 0.31; 'file': 0.32; 'open': 0.33; 'call.': 0.33; 'but': 0.35; 'returning': 0.36; 'method': 0.36; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'remove': 0.60; 'read': 0.60; 'first': 0.61; "you've": 0.63; 'skip:n 10': 0.64; 'header:Reply-To:1': 0.67; 'reply-to:no real name:2**0': 0.71; 'subject:skip:A 10': 0.78; 'reply- to:addr:python.org': 0.84; '2013': 0.98
X-CM-Score: 0.00
X-CNFS-Analysis: v=2.1 cv=TZ6v63gh c=1 sm=1 tr=0 a=0nF1XD0wxitMEM03M9B4ZQ==:117 a=0nF1XD0wxitMEM03M9B4ZQ==:17 a=0Bzu9jTXAAAA:8 a=7AxPfEIvyrUA:10 a=ihvODaAuJD4A:10 a=OUOv7kDek9cA:10 a=8nJEP1OIZ-IA:10 a=EBOSESyhAAAA:8 a=8AHkEIZyAAAA:8 a=ISNvgD0zC6AA:10 a=U_ReUrDrCItk1BLSAawA:9 a=wPNLvfGTeEIA:10
X-AUTH: mrabarnett:2500
Date: Wed, 24 Apr 2013 02:17:48 +0100
From: MRAB <python@mrabarnett.plus.com>
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130328 Thunderbird/17.0.5
MIME-Version: 1.0
To: python-list@python.org
Subject: Re: AttributeError Problem
References: <4dfb3ca3-a539-48ec-aae8-0be22471cea4@googlegroups.com> <mailman.1008.1366761732.3114.python-list@python.org> <18292d0f-1f6f-411a-b348-a5f292e2af51@googlegroups.com>
In-Reply-To: <18292d0f-1f6f-411a-b348-a5f292e2af51@googlegroups.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
Reply-To: python-list@python.org
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://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: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.1009.1366766452.3114.python-list@python.org>
Lines: 34
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1366766452 news.xs4all.nl 2170 [2001:888:2000:d::a6]:59883
X-Complaints-To: abuse@xs4all.nl
Path: csiph.com!usenet.pasdenom.info!news.stben.net!border3.nntp.ams.giganews.com!border1.nntp.ams.giganews.com!nntp.giganews.com!xlned.com!feeder3.xlned.com!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Xref: csiph.com comp.lang.python:44240

On 24/04/2013 01:28, animemaiden wrote:
> On Tuesday, April 23, 2013 8:02:08 PM UTC-4, Skip Montanaro wrote:
>> > numberOfVertices = int(infile.readline().decode()) # Read the first line from the file
>>
>> > AttributeError: 'str' object has no attribute 'readline'
>>
>> ...
>>
>> >     infile = filedialog.askopenfilename()
>>
>>
>>
>> This is just returning a filename.  You need to open it to get a file
>>
>> object.  For example:
>>
>>
>>
>>     infile = filedialog.askopenfilename()
>>
>>     fd = open(infile)
>>
>>     ...
>>
>>     numberOfVertices = int(fd.readline().decode())
>>
>>
>>
>> Skip
> Thanks, but now I have this error AttributeError: 'str' object has no attribute 'decode'
>
You already have a string (the line) that you've read from the file, so
what are you trying to 'decode' anyway? Just remove that erroneous
method call.