Path: csiph.com!x330-a1.tempe.blueboxinc.net!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed5.news.xs4all.nl!xs4all!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; 'defines': 0.07; 'received:209.85.213.46': 0.07; 'received:mail- yw0-f46.google.com': 0.07; 'advance.': 0.09; 'subject:string': 0.09; 'this:': 0.11; 'am,': 0.14; 'wrote:': 0.14; 'python-list,': 0.16; 'subject:joining': 0.16; '\xc2\xa0i': 0.16; 'cc:no real name:2**0': 0.20; 'cc:2**0': 0.20; 'cheers,': 0.20; 'seems': 0.21; 'header:In-Reply-To:1': 0.22; 'cc:addr:python-list': 0.22; 'received:209.85.213': 0.23; 'objects': 0.24; 'chris': 0.27; 'object': 0.27; 'work.': 0.27; 'message-id:@mail.gmail.com': 0.28; "doesn't": 0.28; 'thanks': 0.29; 'string': 0.29; 'sat,': 0.29; 'skip:" 30': 0.29; 'list': 0.30; 'cc:addr:python.org': 0.31; 'implemented': 0.33; 'sufficient': 0.33; 'skip:" 10': 0.34; 'some': 0.37; 'case': 0.37; 'received:209.85': 0.37; 'received:google.com': 0.38; 'but': 0.38; 'strong': 0.39; 'work?': 0.39; 'received:209': 0.39; 'header:Received:5': 0.40; 'accepts': 0.60; '2011': 0.62; 'conversion': 0.64; 'due': 0.67; 'subject:Custom': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rebertia.com; s=google; h=domainkey-signature:mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=FjjeV5FO8qLj9ur/P3d7f0I2iNUDauyiwDKIbBlXZ4o=; b=a7QyS2hIuebV8/HsPMU8WhRFRmlFI9CyUEziMSdNYd+tijTFPhm4VibsnKpyhf9gij ZIdTkhnVeTlNICYYjR09nF7noxbnLpCq5RIJV8mrIilPlE970FePmhgI85ar8MhZSlyU fAb41P9ZLNfeXW2hp0z+eckbBvw3rJ7LHL1cI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=rebertia.com; s=google; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=B25OW4ypkR7GTnu9E358YFhDIdFRz08jA8AZR9/BIJ3cso0dXAgatw1bGfAozOGspJ Br0/8tfAC6FHAhs4y+xpDS/WebpC/aMMew+dnDFbiufWxS/YWIIrY1R3ZjAqMNi21q9g /bw8UuivihZDN4jDLxh77+PVOQO8bUSjtE6uU= MIME-Version: 1.0 Sender: chris@rebertia.com In-Reply-To: <254518825.20110507153133@bitdefender.com> References: <254518825.20110507153133@bitdefender.com> Date: Sat, 7 May 2011 07:25:58 -0700 X-Google-Sender-Auth: qL5TcdVwZapdCAk59i6CLXoQqZk Subject: Re: Custom string joining From: Chris Rebert To: Claudiu Popa Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: python-list@python.org X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.12 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: 23 NNTP-Posting-Host: 82.94.164.166 X-Trace: 1304778361 news.xs4all.nl 34849 [::ffff:82.94.164.166]:35121 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:4909 On Sat, May 7, 2011 at 5:31 AM, Claudiu Popa wrote: > Hello Python-list, > > I =C2=A0have =C2=A0an object which defines some methods. I want to join a= list or > an iterable of those objects like this: > > new_string =3D "|".join(iterable_of_custom_objects) > > What =C2=A0 is =C2=A0 the =C2=A0 __magic__ =C2=A0function that needs to b= e implemented for > this case to work? =C2=A0I =C2=A0though =C2=A0that =C2=A0__str__ =C2=A0is= sufficient but it doesn't seems to > work. Thanks in advance. You need to do the string conversion yourself; .join() doesn't do it for you, due to strong typing. It only accepts iterables of strings: new_string =3D "|".join(str(x) for x in iterable_of_custom_objects) Cheers, Chris -- http://rebertia.com