Path: csiph.com!usenet.pasdenom.info!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed1.news.xs4all.nl!xs4all!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 0.007 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'python3': 0.07; 'returned.': 0.07; 'deprecated': 0.09; 'skip:/ 10': 0.09; 'api': 0.11; 'python': 0.11; 'c-level': 0.16; 'porting': 0.16; 'python3.': 0.16; 'subject: \n ': 0.16; 'memory': 0.22; 'creating': 0.23; 'header:User-Agent:1': 0.23; "haven't": 0.24; '---': 0.24; 'equivalent': 0.26; 'extension': 0.26; 'function': 0.29; 'appreciated.': 0.29; 'direction': 0.30; "i'm": 0.30; 'code': 0.31; 'null;': 0.31; 'subject:the': 0.34; 'received:209.85': 0.35; 'created': 0.35; 'convert': 0.35; 'received:google.com': 0.35; 'subject:?': 0.36; 'should': 0.36; 'received:209': 0.37; 'to:addr:python-list': 0.38; 'guidance': 0.39; 'to:addr:python.org': 0.39; 'new': 0.61; 'subject:. ': 0.67; 'continuous': 0.68 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:date:from:user-agent:mime-version:to :subject:content-type:content-transfer-encoding; bh=FgL0S3I2ev85F45V/JzeXo616DEowtYNrAfga5M0Rb8=; b=Mm58ZCkkH8bHXXvi49NPtU0ExtmkWrfMGAnpvIfHBfxdV/CFIcZcx9JNYziI9+ee7k oZSWIZVmknc69eARikF2TXTEFsXQc0sPaR683a0n9q7ug/xORUPyn8QX5zWd0VIF9H+N v1akCbaRhR5FB2mWxOAjt3OsRrctV2DtbdlzLz/omdVcE6YTQ5a13wPTpUDa0m4Z5jtm BP6nY38FelX54UIlY87k0bclahZKibc86YMNJy6KXAhEXYDLzP7e47kWR4DHs8BYPrDn 1gaRt5IxU7bM3cStiqt0kb6OhzsCNyw0jhJ/MJwnkeeqx6DRxS0mhmtWUZVrL3i09IIh K5kw== X-Gm-Message-State: ALoCoQnQZTgSrzFwwzR2fduKExGHlH6eioBfL8ABlrQnaWhAIoHc1+Imvdsgk7OukewVv8VStfiS X-Received: by 10.66.129.133 with SMTP id nw5mr16361756pab.98.1389419224806; Fri, 10 Jan 2014 21:47:04 -0800 (PST) Date: Fri, 10 Jan 2014 21:47:01 -0800 From: Mark Heieis User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: python-list@python.org Subject: Porting c extension - PyBuffer_New() deprecated in python3. What's the replacement? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Mailman-Approved-At: Sat, 11 Jan 2014 09:32:26 +0100 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: 42 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1389429147 news.xs4all.nl 2868 [2001:888:2000:d::a6]:41017 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:63690 Hi I need to convert the following existing c extension code to support Python 3. // --- existing code ------ // PyBuffer_New() deprecated in python3 if (!(pyBuf = PyBuffer_New(len))) { return NULL; } // should use memoryview object in python3 if (PyObject_AsWriteBuffer(pyBuf, &cbuf, &len)) { Py_DECREF(pyBuf); return NULL ; } // fill in cbuf ... return pyBuf ; //----------- I'm somewhat confounded in finding an equivalent (PyBuffer_New()) for creating a buffer of size len that has continuous memory in the c extension function for python3. cbuf is manipulated/filled in using c, after which the created pyBuf is then returned. So far, I haven't found much in the way of examples/doc for porting the deprecated Python-/C-level buffer API calls to the new C-level buffer API/memoryview object model. Any guidance or direction to existing doc/example is much appreciated. TIA.