Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!ecngs!feeder2.ecngs.de!newsfeed.freenet.ag!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.004 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'configure': 0.04; 'framework.': 0.07; 'line:': 0.07; "subject:' ": 0.07; 'sep': 0.09; 'charset:iso-8859-7': 0.15; 'sat,': 0.15; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'sure.': 0.16; 'string': 0.17; 'wrote:': 0.17; 'element': 0.17; 'error.': 0.21; '15,': 0.23; 'elements': 0.23; 'host': 0.24; 'header:In-Reply-To:1': 0.25; 'guess': 0.27; 'possibly': 0.27; 'execution': 0.27; 'reaches': 0.27; 'message-id:@mail.gmail.com': 0.27; 'subject:list': 0.28; 'though.': 0.29; 'this.': 0.29; 'framework': 0.30; 'error': 0.30; 'getting': 0.33; 'to:addr :python-list': 0.33; 'version': 0.34; 'changed': 0.34; 'received:google.com': 0.34; 'list': 0.35; 'returning': 0.35; 'pm,': 0.35; 'received:209.85': 0.35; 'list.': 0.35; 'but': 0.36; "wasn't": 0.36; 'previous': 0.37; 'received:209': 0.37; 'subject:: ': 0.38; 'mean': 0.38; 'sure': 0.38; 'page': 0.38; 'system.': 0.39; 'to:addr:python.org': 0.39; 'hello,': 0.39; 'header:Received:5': 0.40; 'your': 0.60; 'different': 0.63; 'visit': 0.64 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=sescK0Apv6clzdAmNemLkgRiiLKf4FwKW4Sg++IIm0w=; b=SGVKz/MSpC0VU7viNsHvhxYGMppfKtIdQ014Vo0GMWy6j+4Mb27Xk/bWS3Vn2oSlts 0Fv6lizsoGQG3MbmsZT5KRRzrpD9Q6dmU8ri7u9lwljRRm8P74aFtib90Z9Zk6NCJLgL mLkJmhQ8vPMCAzf1Y1QE7adocBUK5ru4LOEHGPpXhplfZnPbZuNZTLCs/xhDMVBQJdEf vj2Y4UR9GaNBwJyQ0D/NM2tEycopJvoR5UTAoKVTeT0egN+pBF+rPcw65BfErgqlLNcl cktwA0mZXiu7Ms0zumWQj0QWm0Wwn/ECeiMcnfbnv6tw9+I+0jTLG209+Pb3ufFTN2zG DS7Q== MIME-Version: 1.0 In-Reply-To: <071ad036-77ca-42d3-b68d-0dd3e3fac43e@googlegroups.com> References: <071ad036-77ca-42d3-b68d-0dd3e3fac43e@googlegroups.com> Date: Sat, 15 Sep 2012 22:33:52 +1000 Subject: Re: cannot concatenate 'str' and 'list' objects From: Chris Angelico To: python-list@python.org Content-Type: text/plain; charset=ISO-8859-7 Content-Transfer-Encoding: quoted-printable X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 30 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1347712435 news.xs4all.nl 6861 [2001:888:2000:d::a6]:45847 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:29222 On Sat, Sep 15, 2012 at 10:22 PM, =CD=E9=EA=FC=EB=E1=EF=F2 =CA=EF=FD=F1=E1= =F2 wrote: > Hello, > > I recently changed webhost and in the new one iam getting this error you = can see if you visit http://superhost.gr when program execution reaches the= line: > > f =3D open( '../' + page ) > > In the previous host i wasn't getting this error. > > page's contents is: > > page =3D form.getvalue('page') Well, clearly '../' is a string (str), and page must be a list. But without knowing your web framework it's hard to be sure what's going on. My guess is that form.getvalue() is returning a list of form elements with that name, so you have a list with one element in it. But check your documentation to be sure. Since this changed when you changed hosts, it may mean you now have a completely different framework. Possibly you can configure this. Alternatively, it may simply be a different version of the same system. It's hard to know just based on this, though. ChrisA