Recherche de module implicite en Python?

Question

Je travaille sur une compréhension plus complète de Python Virtual Environment pour les problèmes de portabilité à travers des solutions d'hébergement bon marché et des plates-formes de développement et il y a des pièces que je ne comprends pas.

J'ai construit des environnements virtuels, mais je ne vois pas le besoin ISOLEMENT COMPLETE je pour copier des environnements virtuels à des hôtes en supposant que les hôtes n'ont pas installé python

Le problème est que je vais construire un la plate-forme P qui est pas complètement isolé du système P - bin/python2.6 - lib/python2.6/site-packages

PATH est modifié pour contenir uniquement P/bin/

PYTHONPATH est vierge

Fonctionne parfaitement. Mais, il visite toujours les répertoires système pour résoudre ce qui ne se trouve pas dans l'environnement virtuel. POURQUOI??

dans ce casP =/tmp/pinax2/ `

import sys

print sys.path

['', '/tmp/pinax2/lib/python2.6/site-packages/setuptools-0.6c11-py2.6.egg', '/tmp/pinax2/lib/python2.6/site-packages/ pip-0.8.1-py2.6.egg ','/home/marc/PythonPersonalWorkspace/mcapps/societysource ',' /tmp/pinax2/lib/python2.6 ',' /tmp/pinax2/lib/python2.6/plat-linux2 ',' /tmp/pinax2/lib/python2.6/lib-tk ',' /tmp/pinax2/lib/python2.6/lib-old ','/tmp/pinax2/lib/python2. 6/lib-dynload ',' /usr/lib/python2.6 ',' /usr/lib/python2.6/plat-linux2 ',' /usr/lib/python2.6/lib-tk ','/tmp/pinax2/lib/python2.6/paquets-de-site ',' /usr/local/lib/python2.6/dist-packages/pydelicious-0.6-py2.6.egg ','/usr/local/lib/python2.6/dist-packages/feedparser-4.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/nose-0.11.3-py2.6.egg ','/usr/local/lib/python2.6/dist-packages/décorateur-3.2.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/FormEncode-1.2.2-py2 .6.egg ',' /usr/local/lib/python2.6/dist-packages/PasteScript-1.7.3-py2.6.egg ',' /usr/local/lib/python2.6/dist-p ackages/PasteDeploy-1.3.3-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/Beaker-1.5.4-py2.6.egg ','/usr/local/lib/python2.6/dist-packages/Routes-1.12.3-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/docutils-0.4-py2.6.egg ', '/usr/local/lib/python2.6/dist-packages/simplejson-2.0.9-py2.6.egg', '/usr/local/lib/python2.6/dist-packages/WebHelpers-0.6.4 -py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/Mako-0.3.6-py2.6.egg ',' /usr/local/lib/python2.6/dist -packages/MarkupSafe-0.11-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/Tempita-0.4-py2.6.egg ','/usr/local/lib/python2 .6/dist-packages/WebTest-1.2-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/WebError-0.10.2-py2.6.egg ','/usr /local/lib/python2.6/dist-packages/Pygments-1.3.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/AuthKit-0.4.5-py2. 6.egg ',' /usr/local/lib/python2.6/dist-packages/elementtree-1.2.7_20070827_preview-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/ distribute-0.6.14-py2.6.egg ','/usr/local /lib/python2.6/dist-packages/setuptools-0.6c11-py2.5.egg ',' /usr/local/lib/python2.6/dist-packages/Myghty-1.2-py2.6.egg ', '/usr/local/lib/python2.6/dist-packages/recaptcha_client-1.0.5-py2.6.egg', '/usr/local/lib/python2.6/dist-packages/pyfacebook-1.0a2- py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/BeautifulSoup-3.2.0-py2.6.egg ','/usr/local/lib/python2.6/dist-packages/flup-1.0.3.dev_20100525-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/JCC-1.9-py2.6-linux-i686.egg ',' /usr/local/lib/python2.6/dist-packages/mechanize-0.2.4-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/Pylons-1.0 -py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/pyparsing-1.5.5-py2.6.egg ',' /usr/local/lib/python2.6/dist -packages/python_dateutil-1.5-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/z3ext.lucene-1.1.4-py2.6.egg ','/usr/local /lib/python2.6/dist-packages/zope.app.catalog-3.8.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.app.container- 3.9.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.app.pagetemplate-3.11.2-py2.6.egg ','/usr/local/lib/python2.6/dist-packages/zope.app.appsetup-3.15.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.app.intid-3.7 .1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.app.twisted-3.5.0-py2.6.egg ','/usr/local/lib /python2.6/dist-packages/zope.i18nmessageid-3.5.3-py2.6-linux- i686.egg ',' /usr/local/lib/python2.6/dist-packages/zope.index-3.6.1-py2.6-linux-i686.egg ','/usr/local/lib/python2. 6/dist-packages/zope.proxy-3.6.1-py2.6-linux-i686.egg ',' /usr/local/lib/python2.6/dist-packages/zope.schema-3.7.1-py2 .6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.publisher-3.12.6-py2.6.egg ',' /usr/local/lib/python2.6/dist -packages/zope.component-3.10.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.catalog-3.8.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.app.publisher-3.10.2-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope. traversing-3.13.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.size-3.4.1-py2.6.egg ','/usr/local/lib/python2.6/dist-packages/zope.security-3.8.0-py2.6-linux-i686.egg ',' /usr/local/lib/python2.6/dist-packages/zope.location-3.9 .0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.lifecycleevent-3.6.2-py2.6.egg ','/usr/local/lib/python2 .6/dist-packages/zope.i18n-3.7.4-py2.6.egg ','/usr/local/lib/py thon2.6/dist-packages/zope.exceptions-3.6.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.event-3.5.0_1-py2.6 .egg ',' /usr/local/lib/python2.6/dist-packages/zope.dublincore-3.8.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages /zope.copypastemove-3.8.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.container-3.12.0-py2.6-linux-i686.egg ' '/usr/local/lib/python2.6/dist-packages/zope.browser-1.3-py2.6.egg', '/usr/local/lib/python2.6/dist-packages/zope.tales- 3.5.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.pagetemplate-3.5.2-py2.6.egg ','/usr/local/lib/python2.6/dist-packages/zope.configuration-3.7.2-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.browserpage-3.12.2-py2.6 .egg ',' /usr/local/lib/python2.6/dist-packages/zope.site-3.9.2-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages /zope.session-3.9.3-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.processlifetime-1.0-py2.6.egg ','/usr/local /lib/python2.6/dist-packages/zope.error-3.7 .2-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.app.publication-3.12.0-py2.6.egg ','/usr/local/lib /python2.6/dist-packages/ZODB3-3.10.1-py2.6-linux-i686.egg ',' /usr/local/lib/python2.6/dist-packages/zope.intid-3.7.2- py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.app.server-3.5.0-py2.6.egg ','/usr/local/lib/python2. 6/dist-packages/zope.app.wsgi-3.10.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.app.applicationcontrol-3.5.9-py2 .6.egg ',' /usr/local/lib/python2.6/dist-packages/zdaemon-2.0.4-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages /ZConfig-2.8.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.contenttype-3.5.1-py2.6.egg ','/usr/local /lib/python2.6/dist-packages/zope.annotation-3.5.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.componentvocabulary-1.0.1- py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.ptresource-3.9.0-py2.6.egg ',' /usr/local/lib/python2.6/ dist-packages/zope.datetime-3.4.0-py2.6.egg ','/usr/local/lib/p ython2.6/dist-packages/zope.browserresource-3.12.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.browsermenu-3.9.1-py2.6 .egg ',' /usr/local/lib/python2.6/dist-packages/pytz-2010o-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.copy -3.5.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.broken-3.6.0-py2.6.egg ','/usr/local/lib /python2.6/dist-packages/zope.filerepresentation-3.6.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.dottedname-3.4.6-py2. 6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.tal-3.5.2-py2.6.egg ',' /usr/local/lib/python2.6/dist- packages/RestrictedPython-3.6.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.hookable-3.4.1-py2.6-linux-i686.egg ', '/usr/local/lib/python2.6/dist-packages/zope.minmax-1.1.2-py2.6.egg', '/usr/local/lib/python2.6/dist-packages/zope.authentication -3.7.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zc.lockfile-1.0.0-py2.6.egg ','/usr/local/lib /python2.6/dist-packages/transaction-1.1.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.keyreference-3.6.2-py2.6.egg ',' /usr/local/lib/python2.6/dist- packages/zope.password-3.6.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.server-3.8.2-py2.6.egg ','/usr/local/lib/python2.6/dist-packages/zope.testing-3.10.2-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/zope.testbrowser-3.10 .3-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/wsgi_intercept-0.4-py2.6.egg ',' /usr/local/lib/python2.6/dist -packages/zope.applicationcontrol-3.5.5-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/Paste-1.7.3.1-py2.6.egg ','/usr /local/lib/python2.6/dist-packages/SQLAlchemy-0.6.6-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/virtualenv-1.5.1-py2. 6.egg ',' /usr/local/lib/python2.6/dist-packages/Reindent-0.1.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/ roman-1.4.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/WebOb-1.0.1-py2.6.egg ','/usr/local/lib/python2.6/dist-packages/weakrefset-1.0.0-py2.6.egg ','/usr /local/lib/python2.6/dist-packages/django_openid-0.1.5-py2.6.egg ',' /usr/lib/pymodules/python2.6 ',' /usr/local/lib/python2.6 /dist-packages/django_extensions-0.6-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/django_robots-0.8.0-py2.6.egg ','/usr/local /lib/python2.6/dist-packages/django_friends-0.1.5-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/django_mailer-0.1.0-py2.6. egg ',' /usr/local/lib/python2.6/dist-packages/django_messages-0.4.4-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/django_announcements- 0.1.2-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/django_oembed-0.1.3-py2.6.egg ','/usr/local/lib/python2. 6/dist-packages/django_db_log-2.2.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/django_pagination-1.0.7-py2.6.egg ','/usr/local/lib/python2.6/dist-packages/django_threadedcomments-0.5.3-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/django_bookmarks-0.1.0-py2 .6.egg ',' /usr/local/lib/python2.6/dist-packages/django_ajax_validation-0.1.3-py2.6.egg ', '/usr/local/lib/python2.6/dist-packages/django_photologue-2.3-py2.6.egg', '/usr/local/lib/python2.6/dist-packages/django_avatar-1.0.5-py2 .6.egg ',' /usr/local/lib/python2.6/dist-packages/django_flag-0.1.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages /django_microblogging-0.1.2-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/django_locations-0.1.1-py2.6.egg ','/usr/local/lib /python2.6/dist-packages/django_uni_form-0.7.0-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/django_sorting-0.1-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/django_markup-0.3-py2.6.egg ',' /usr/local/lib/python2.6/dist-packages/django_staticfiles-0.3.4-py2. 6.egg ',' /usr/local/lib/python2.6/dist-packages/django_email_confirmation-0.1.4-py2.6.egg ',' /usr/local/lib/python2.6/site-packages ' '/usr/local/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages/PIL', '/usr/lib/python2.6/dist-packages/gst-0.10', '/usr/lib/python2.6/dist-packages/gtk-2.0', '/ us r/lib/pymodules/python2.6/gtk-2.0' ]

`

Answer 1

Parlez-vous virtualenv? Il existe une option lorsque vous créez l'environnement virtuel qui exclut tous les packages de site existants. Je pense que c'est ce que tu veux.

virtualenv --no-site-packages env