Path: csiph.com!usenet.pasdenom.info!news.redatomik.org!newsfeed.xs4all.nl!newsfeed7.news.xs4all.nl!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 0.016 X-Spam-Evidence: '*H*': 0.97; '*S*': 0.00; 'correct.': 0.07; 'override': 0.07; 'extension.': 0.09; 'subject:using': 0.09; 'python': 0.10; 'subject:not': 0.11; "skip:' 30": 0.15; '.dll': 0.16; 'bisect': 0.16; 'received:192.168.11': 0.16; 'wrote:': 0.16; 'language': 0.19; 'windows': 0.20; '2015': 0.20; 'developer': 0.20; 'aug': 0.20; 'extension': 0.20; '(on': 0.22; 'object.': 0.22; "skip:' 40": 0.22; 'sorry,': 0.22; 'this:': 0.23; 'import': 0.24; 'written': 0.24; 'header:In-Reply-To:1': 0.24; 'mon,': 0.24; 'module': 0.25; 'header:User-Agent:1': 0.26; "doesn't": 0.26; 'not.': 0.27; 'subject: ?': 0.27; 'question': 0.27; 'module.': 0.27; 'correct': 0.28; 'function': 0.28; 'objects': 0.29; 'asked': 0.29; 'skip:_ 10': 0.32; "d'aprano": 0.33; 'everyone.': 0.33; 'steven': 0.33; 'message-id:@gmail.com': 0.34; 'members.': 0.34; 'file': 0.34; 'received:google.com': 0.35; 'world,': 0.35; 'question,': 0.35; 'asking': 0.35; 'but': 0.36; 'should': 0.36; 'email addr:python.org': 0.36; 'to:addr:python-list': 0.36; 'pm,': 0.36; 'subject:: ': 0.37; 'two': 0.37; 'times.': 0.38; 'means': 0.39; 'goes': 0.39; 'does': 0.39; 'received:192': 0.39; 'to:addr:python.org': 0.40; 'where': 0.40; 'your': 0.60; 'determine': 0.61; 'believe': 0.66; '>>>>>': 0.66; 'python-list': 0.66; 'email name:python-list': 0.67; 'day': 0.67; 'answer.': 0.72; '2.7.': 0.84; 'answer,': 0.84; 'working,': 0.84; 'sorry.': 0.91 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=hI88Ehkq2vTbWTgIXI9cidw/c6KtNPvSrXxTaWn9f3c=; b=raSIZph7ELCBFzjpz54932xdapAK9A9N9N/fF5bJ7wPoprZsKw9tc1ph7m5/JluajP fo0aPPo6LvIJiPNDJlaK0YT1fvD/a9+8BuZUI37BMUNFUFeme3+b/nKdRQabTmN6Fhge h4O/311YBIGqaZNrEw3tWBhE5Kz4ded2FLBEmDi7MLXn3qTlpR7bV3hG9yTgE/OdueaF Pm1jM4xL/5yiwIMsYwP4hxMXIi+t4pzWnXVLqrEXWAPRv3AJ09mJ2v+A1FOJWWdC5u8U hOsUlHS0pFM3RjDFG9/IY3GHF6j6b+SW0EoQc0euT1F1ZNlmsPSsNfxCpU+KmwE2i29f xwbg== X-Received: by 10.66.218.42 with SMTP id pd10mr36626291pac.106.1438610522307; Mon, 03 Aug 2015 07:02:02 -0700 (PDT) Date: Mon, 03 Aug 2015 23:01:59 +0900 From: umedoblock User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 MIME-Version: 1.0 To: python-list@python.org Subject: Re: how to determine for using c extension or not ? References: <55bf6e6f$0$1650$c3e8da3$5496439d@news.astraweb.com> In-Reply-To: <55bf6e6f$0$1650$c3e8da3$5496439d@news.astraweb.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ 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: 64 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1438610526 news.xs4all.nl 2825 [2001:888:2000:d::a6]:36439 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:94938 sorry, Joel, Skip, Steven, and python-list members. I think that I don't sent my mail to python-list@python.org or I don't have correct mail setting. so I send many mails. sorry... I should wait a day to get answer, sorry. On 2015年08月03日 22:36, Steven D'Aprano wrote: > On Mon, 3 Aug 2015 03:47 pm, umedoblock wrote: > >> Hello everyone. >> >> I use bisect module. > > You asked the same question FOUR times. Have patience. Your question goes > all over the world, people may be asleep, or working, or just not know the > answer. If you ask a question, and get no answers, you should wait a full > day before asking again. > > >> bisect module developer give us c extension as _bisect. >> >> If Python3.3 use _bisect, _bisect override his functions in bisect.py. > > So does Python 2.7. > > >> now, I use id() function to determine for using c extension or not. > > The id() function doesn't tell you where objects come from or what language > they are written in. But they will tell you if two objects are the same > object. > >>>>> import bisect >>>>> id(bisect.bisect) >> 139679893708880 >>>>> import _bisect >>>>> id(_bisect.bisect) >> 139679893708880 >> >> they return 139679893708880 as id. >> so i believe that i use c extension. > > Correct. > > Also, you can do this: > > > py> import bisect > py> bisect.__file__ > '/usr/local/lib/python2.7/bisect.pyc' > py> bisect.bisect.__module__ # Where does the bisect file come from? > '_bisect' > py> import _bisect > py> _bisect.__file__ > '/usr/local/lib/python2.7/lib-dynload/_bisect.so' > > So you can see that _bisect is a .so file (on Linux; on Windows it will be > a .dll file), which means written in C. > >