Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #74092

Re: Module name does not match file name

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed1a.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path <python-python-list@m.gmane.org>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.001
X-Spam-Evidence '*H*': 1.00; '*S*': 0.00; 'subject:not': 0.03; 'importerror:': 0.07; 'subject:file': 0.07; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'suffix': 0.09; 'python': 0.11; 'creates': 0.14; '"run': 0.16; 'ah,': 0.16; 'extern': 0.16; 'received:80.91.229.3': 0.16; 'received:dip0.t-ipconnect.de': 0.16; 'received:plane.gmane.org': 0.16; 'received:t-ipconnect.de': 0.16; 'alpha': 0.16; 'wrote:': 0.18; 'looked': 0.18; 'module': 0.19; 'seems': 0.21; 'feb': 0.22; '>>>': 0.22; 'code,': 0.22; 'import': 0.22; 'header:User-Agent:1': 0.23; 'char': 0.24; 'mon,': 0.24; "i've": 0.25; 'source': 0.25; 'gets': 0.27; 'header:X -Complaints-To:1': 0.27; 'tried': 0.27; '"",': 0.31; "d'aprano": 0.31; 'steven': 0.31; 'void': 0.31; 'anyone': 0.31; 'file': 0.32; '(most': 0.33; 'but': 0.35; 'too': 0.37; 'to:addr:python-list': 0.38; 'short': 0.38; 'recent': 0.39; 'explain': 0.39; 'skip:. 10': 0.39; 'sure': 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'called': 0.40; 'how': 0.40; 'complete': 0.62; 'more': 0.64; 'answer.': 0.68; 'jul': 0.74; 'touch': 0.74; '2014,': 0.84; 'partial': 0.84
X-Injected-Via-Gmane http://gmane.org/
To python-list@python.org
From Peter Otten <__peter__@web.de>
Subject Re: Module name does not match file name
Date Mon, 07 Jul 2014 12:41:15 +0200
Organization None
References <53ba52e1$0$2926$c3e8da3$76491128@news.astraweb.com> <53ba60dc$0$2926$c3e8da3$76491128@news.astraweb.com>
Mime-Version 1.0
Content-Type text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding 7Bit
X-Gmane-NNTP-Posting-Host p57bd89b4.dip0.t-ipconnect.de
User-Agent KNode/4.11.5
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.15
Precedence list
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <https://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 <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups comp.lang.python
Message-ID <mailman.11582.1404729695.18130.python-list@python.org> (permalink)
Lines 49
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1404729695 news.xs4all.nl 2856 [2001:888:2000:d::a6]:53165
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:74092

Show key headers only | View raw

Steven D'Aprano wrote:

> Ah, I think I have a partial answer... but not a complete answer.
> 
> 
> On Mon, 07 Jul 2014 07:57:21 +0000, Steven D'Aprano wrote:
> 
>> Can anyone explain how "import pg" can end up coming from pgmodule.so?
>> 
>> 
>> Sure enough:
>> 
>>>>> import pg
>>>>> pg.__file__
>> '/usr/local/lib/python2.6/dist-packages/pgmodule.so'
> 
> 
> 
> I've looked inside the pgmodule.c source code, and it includes this
> snippet:
> 
> 
> extern void
> initpg(void)
> {
>     char *p;
>     int i;
> 
>     Py_InitModule("pg", pg_methods);
> 
> 
> which suggests that the pgmodule.so file creates a module called "pg".
> What I don't understand is how "import pg" gets turned into "run
> pgmodule.so"?

It seems the suffix "module.so" is tried automagically by the import 
machinery:

$ touch alphamodule.so
$ python
Python 2.7.5+ (default, Feb 27 2014, 19:37:08) 
[GCC 4.8.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import alpha
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: ./alphamodule.so: file too short

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Module name does not match file name Steven D'Aprano <steve@pearwood.info> - 2014-07-07 07:57 +0000
  Re: Module name does not match file name Chris Angelico <rosuav@gmail.com> - 2014-07-07 18:04 +1000
    Re: Module name does not match file name Steven D'Aprano <steve@pearwood.info> - 2014-07-07 09:03 +0000
      Re: Module name does not match file name Chris Angelico <rosuav@gmail.com> - 2014-07-07 19:11 +1000
  Re: Module name does not match file name Steven D'Aprano <steve@pearwood.info> - 2014-07-07 08:57 +0000
    Re: Module name does not match file name Chris Angelico <rosuav@gmail.com> - 2014-07-07 19:03 +1000
      Re: Module name does not match file name Steven D'Aprano <steve@pearwood.info> - 2014-07-07 09:28 +0000
    Re: Module name does not match file name Peter Otten <__peter__@web.de> - 2014-07-07 12:41 +0200
    Re: Module name does not match file name Robert Kern <robert.kern@gmail.com> - 2014-07-07 12:15 +0100
      Re: Module name does not match file name Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-07-07 11:56 +0000
        Re: Module name does not match file name Chris Angelico <rosuav@gmail.com> - 2014-07-07 22:04 +1000
        Re: Module name does not match file name Robert Kern <robert.kern@gmail.com> - 2014-07-07 15:25 +0100

csiph-web