Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!selfless.tophat.at!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 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'distinct': 0.05; 'imports': 0.07; 'skip:` 10': 0.07; 'python': 0.08; 'url:pypi': 0.08; '-------': 0.09; 'executed': 0.09; 'homepage:': 0.09; 'merging': 0.09; 'namespace': 0.09; 'prefix': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:80.91.229.12': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'received:lo.gmane.org': 0.09; 'packages.': 0.14; '"-"': 0.16; 'directories?': 0.16; 'egg': 0.16; 'from:addr:behnel.de': 0.16; 'from:addr:stefan_ml': 0.16; 'from:name:stefan behnel': 0.16; 'naming': 0.16; 'subject:Java': 0.16; 'guess': 0.19; 'header:In-Reply-To:1': 0.21; 'java': 0.21; 'seems': 0.21; 'structure': 0.23; 'appear': 0.23; 'received:84': 0.25; 'stored': 0.25; 'collecting': 0.26; 'example': 0.27; 'e.g.': 0.29; 'import': 0.29; 'convention': 0.29; 'stefan': 0.29; 'work:': 0.29; 'skip:( 20': 0.30; 'calling': 0.31; 'header:X-Complaints- To:1': 0.32; 'does': 0.33; 'to:addr:python-list': 0.33; "isn't": 0.33; 'lines': 0.33; 'rather': 0.34; '...': 0.34; 'install': 0.34; 'there': 0.35; 'header:User-Agent:1': 0.35; 'skip:" 10': 0.35; 'languages.': 0.35; 'packages,': 0.35; 'using': 0.35; 'two': 0.37; 'url:python': 0.38; 'received:org': 0.38; 'url:org': 0.38; 'but': 0.38; 'though': 0.38; 'subject:: ': 0.38; 'case,': 0.39; 'subject: (': 0.39; 'should': 0.39; 'header:Mime-Version:1': 0.39; 'to:addr:python.org': 0.39; 'allows': 0.40; 'under': 0.40; 'really': 0.40; 'more': 0.60; 'within': 0.60; 'your': 0.60; 'zip': 0.65; 'directories,': 0.84; 'easy:': 0.84; 'hook': 0.84 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Stefan Behnel Subject: Re: Nimp: Nested Imports (a la Java) Date: Thu, 16 Jun 2011 22:17:39 +0200 References: <33dc27c2-cf4a-4915-a546-99834475e636@glegroupsg2000goo.googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: dslb-084-056-022-038.pools.arcor-ip.net User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110424 Lightning/1.0b2 Thunderbird/3.1.10 In-Reply-To: <33dc27c2-cf4a-4915-a546-99834475e636@glegroupsg2000goo.googlegroups.com> 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: 50 NNTP-Posting-Host: 82.94.164.166 X-Trace: 1308255473 news.xs4all.nl 49042 [::ffff:82.94.164.166]:36839 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:7766 Tomer Filiba, 16.06.2011 10:48: > Nimp (Nested Imports) is a little meta-importer hook for Python 2.3-2.7 and 3.0-3.2 that enables the use of *nested packages* (`com.ibm.foo.bar`), as is commonplace in Java and various other languages. It works by collecting all packages that begin with a common prefix on your `sys.path` and "merging" them into logical packages. > > Homepage: http://pypi.python.org/pypi/nimp > Install: pip install nimp > > Example > ------- > Consider the following package layout (say, under site-packages, or anywhere on your python path): > > site-packages/ > com-ibm-storage/ > ... package files ... > com-ibm-storage-plugins/ > ... package files ... > com-google-protobuf/ > ... package files ... > com-google-appengine/ > ... package files ... > > Using Nimp is easy: > > import nimp > nimp.install() > > You can place these two lines in your `site.py`; after calling `nimp.install()`, the following imports will "magically" work: > > import com # a namespace package (empty) > import com.google.protobuf > import com.ibm.storage > from com.ibm.storage.plugins import MySQLPlugin So, this isn't really about "nested imports" but rather about merging distinct packages, right? This allows me to let packages that are stored in different places appear within their common package prefix. Does is really require the "-" naming convention for packages, or would it also work with normal directories? E.g. ...path1/org/humbug/test/... ...path2/org/humbug/toast/... That seems like a more common use case: different install directories, egg directories and zip files that contain the same prefix package directories. I guess there are issues with "__init__.py" files in this case, though - which ones should be executed if the package structure is multiplied? Stefan