Arbeiten mit distribute, pip und virtualenv

Arbeiten mit distribute,
pip und virtualenv
Markus Zapke-Gründemann
Leipzig Python User Group - 10.8.2010

Überblick
• Über mich

• distribute

• pip

• modern-package-template

• virtualenv

• virtualenvwrapper

Markus
Zapke-Gründemann
• Softwareentwickler seit 2001

• Schwerpunkt: Web Application Development
mit Python und PHP

• Django, symfony & Zend Framework

• Freier Softwareentwickler und Berater seit
2008

• www.keimlink.de

distribute

• Fork des setuptools Pakets

• Erweitert distutils

• Stellt setuptools für Pakete zur Verfügung,
die davon abhängen

• Python 3 Unterstützung

• Maintainer: Tarek Ziadé

Wichtige Features von
distribute
• Herunterladen und Installieren von benötigten
Paketen

• Automatisches Einschließen von Paketen und
weiteren Dateien

• „Package Namespaces“

• PyPI Upload

• „Development Mode“ (setup.py develop)

distribute installieren

$ wget http://python-distribute.org/distribute_setup.py
$ python distribute_setup.py

1. Entfernen der bestehenden setuptools Installation
2. Installieren einer Fake setuptools Installation
3. Installation von distribute

pip
• „pip installs packages“ • Protokollieren der Aktionen

• Ersatz für easy_install • Kann einen URL oder ein
VCS als Quelle benutzen
• Kann Pakete wieder
deinstallieren • „requirements“

• Nur vollständige • Unterstüzung für
Installationen werden virtualenv
durchgeführt
• Autor: Ian Bicking
• „Sinnvolle“ Ausgaben

$ easy_install pip

pip install
$ pip install Markdown
Downloading/unpacking Markdown
Downloading Markdown-2.0.3.zip (94Kb): 94Kb downloaded
Running setup.py egg_info for package Markdown
Installing collected packages: Markdown
Running setup.py install for Markdown
changing mode of build/scripts-2.6/markdown from 644 to 755
changing mode of /Users/zappi/.virtualenvs/testenv/bin/markdown
to 755
Successfully installed Markdown
Cleaning up...

pip install
$ pip install Django==1.1.2

$ pip install http://effbot.org/downloads/Imaging-1.1.6.tar.gz

$ pip install -e svn+http://svn.myproject.org/svn/MyProject/
trunk#egg=MyProject

$ pip install -e svn+http://svn.myproject.org/svn/MyProject/
trunk@2019#egg=MyProject

$ pip install --upgrade celery

pip install
$ cat requirements.txt
Django==1.1.2
nose==0.11
-e svn+http://mycompany/svn/MyApp/trunk@1045#egg=MyApp
-e svn+http://mycompany/svn/MyLibrary/trunk@1058#egg=MyLibrary

$ pip install -r requirements.txt
Downloading/unpacking nose==0.11 (from -r requirements.txt (line 2))
Downloading nose-0.11.0.tar.gz (249Kb): 249Kb downloaded
Running setup.py egg_info for package nose
no previously-included directories found matching 'doc/.build'
Downloading/unpacking Django==1.1.2 (from -r requirements.txt (line 1))
Downloading Django-1.1.2.tar.gz (5.7Mb): 5.7Mb downloaded
Running setup.py egg_info for package Django
Installing collected packages: Django, nose
Running setup.py install for Django
changing mode of build/scripts-2.6/django-admin.py from 644 to 755
changing mode of /Users/zappi/.virtualenvs/devenv/bin/django-admin.py to 755
Running setup.py install for nose
Installing nosetests-2.6 script to /Users/zappi/.virtualenvs/devenv/bin
Installing nosetests script to /Users/zappi/.virtualenvs/devenv/bin
Successfully installed Django nose
Cleaning up...

pip install
$ pip install -E ~/.virtualenvs/devenv -r requirements.txt
Downloading/unpacking nose==0.11 (from -r requirements.txt (line 2))
Downloading nose-0.11.0.tar.gz (249Kb): 249Kb downloaded
Running setup.py egg_info for package nose
Downloading/unpacking Django==1.1.2 (from -r requirements.txt (line 1))
Downloading Django-1.1.2.tar.gz (5.7Mb): 5.7Mb downloaded
Running setup.py egg_info for package Django
Installing collected packages: Django, nose
Found existing installation: Django 1.1.1
Not uninstalling Django at /Library/Python/2.6/site-packages, outside environment /
Users/zappi/.virtualenvs/devenv/bin/..
Running setup.py install for Django
changing mode of build/scripts-2.6/django-admin.py from 644 to 755
changing mode of /Users/zappi/.virtualenvs/devenv/bin/django-admin.py to 755
Found existing installation: nose 0.11.1
Not uninstalling nose at /Library/Python/2.6/site-packages, outside environment /
Users/zappi/.virtualenvs/devenv/bin/..
Running setup.py install for nose
Installing nosetests-2.6 script to /Users/zappi/.virtualenvs/devenv/bin
Installing nosetests script to /Users/zappi/.virtualenvs/devenv/bin
Successfully installed Django nose
Cleaning up...

pip install
$ pip install anyjson boo
Downloading/unpacking anyjson
Downloading anyjson-0.2.4.tar.gz
Running setup.py egg_info for package anyjson
Downloading/unpacking boo
Could not find any downloads that satisfy the requirement boo
No distributions at all found for boo
Storing complete log in /Users/zappi/.pip/pip.log

pip uninstall
$ pip uninstall Markdown
Uninstalling Markdown:
/Users/zappi/.virtualenvs/testenv/bin/markdown
/Users/zappi/.virtualenvs/testenv/lib/python2.6/site-packages/
Markdown-2.0.3-py2.6.egg-info
/Users/zappi/.virtualenvs/testenv/lib/python2.6/site-packages/
markdown
Proceed (y/n)? y
Successfully uninstalled Markdown

pip freeze
$ pip freeze
Django==1.2.1
amqplib==0.6.1
anyjson==0.2.4
billiard==0.3.1
carrot==0.10.5
celery==1.0.5
distribute==0.6.10
django-debug-toolbar==0.8.3
django-picklefield==0.1.6
importlib==1.0.2
python-dateutil==1.5
wsgiref==0.1.2

$ pip freeze > requirements.txt

pip search
$ pip search markdown
Markdoc - A lightweight Markdown-based wiki build tool.
markdown2 - markdown2: A fast and complete Python implementaion of
Markdown.
Argot - argot text markup -- a markdown dialect
Flask-Markdown - Small extension to make using markdown easy
Markdown - Python implementation of Markdown.
INSTALLED: 2.0.3 (latest)
django-markdown2 - This is a simple app, which supplies a single template tag
for markdown markup.
tiddlywebplugins.markdown - Markdown rendering for TiddlyWeb
discount - A Python interface for Discount, the C Markdown parser
tiddlywebplugins.simplewiki - A simple markdown based wiki in TiddlyWeb
django-markdown-deux - a Django app that provides template tags for using Markdown
(using the python-markdown2 processor)
pymarkdown_minisite - Parse a list of markdown files to a website with index.
html2text - Turn HTML into equivalent Markdown-structured text.
markdown2latex - Extension
django-autolinks - App for storing links and automatic link extraction from
markdown texts.
collective.transform.multimarkdown - MultiMarkdown text transform for Plone

pip completion

$ pip completion --bash >> ~/.profile

$ pip completion --zsh >> ~/.zprofile

Design done by Idan Gazit (http://pixane.com) - License: cc-by-3.0

modern-package-template

• PasteScript Template

• distribute

• buildout

• Autor: Sridhar Ratnakumar

$ pip install modern-package-template

$ paster create -t modern_package testpackage
Selected and implied templates:
modern-package-template#modern_package Package with distribute and buildout support

Variables:
egg: testpackage
package: testpackage
project: testpackage
Enter version (Version (like 0.1)) ['0.1']:
Enter description (One-line description of the package) ['']: A test package.
Enter keywords (Space-separated keywords/tags) ['']: test package
Enter author (Author name) ['']: Markus Zapke-Gründemann
Enter author_email (Author email) ['']: info@keimlink.de
Enter url (URL of homepage) ['']: http://www.keimlink.de/
Enter license_name (License name) ['']: BSD
Creating template modern_package
Creating directory ./testpackage
Copying HACKING.txt to ./testpackage/HACKING.txt
Copying MANIFEST.in to ./testpackage/MANIFEST.in
Copying NEWS.txt to ./testpackage/NEWS.txt
Copying README.rst to ./testpackage/README.rst
Copying bootstrap.py to ./testpackage/bootstrap.py
Copying buildout.cfg_tmpl to ./testpackage/buildout.cfg
Copying setup.py_tmpl to ./testpackage/setup.py
Running /usr/bin/python setup.py egg_info

Verzeichnisstruktur
.gitignore
.hgignore
HACKING.txt
MANIFEST.in
NEWS.txt
README.rst buildout
bootstrap.py distribute
buildout.cfg
setup.py
src/
testpackage/
testpackage.egg-info/

setup.py Teil 1
from setuptools import setup, find_packages
import sys, os

here = os.path.abspath(os.path.dirname(__file__))
README = open(os.path.join(here, 'README.rst')).read()
NEWS = open(os.path.join(here, 'NEWS.txt')).read()

version = '0.1'

install_requires = [
# List your project dependencies here.
# For more details, see:
# http://packages.python.org/distribute/setuptools.html#declaring-dependencies
]

setup.py Teil 2
setup(name='testpackage',
version=version,
description="A test package.",
long_description=README + 'nn' + NEWS,
classifiers=[
# Get strings from http://pypi.python.org/pypi?%3Aaction=list_classifiers
],
keywords='test package',
author='Markus Zapke-Grxc3xbcndemann',
author_email='info@keimlink.de',
url='http://www.keimlink.de/',
license='BSD',
packages=find_packages('src'),
package_dir = {'': 'src'},include_package_data=True,
zip_safe=False,
install_requires=install_requires,
entry_points={
'console_scripts':
['testpackage=testpackage:main']
}
)

virtualenv

• Isolierte Python Umgebungen

• Unterstützung für distribute

• Kann mit WSGI Containern benutzt werden

• Autor: Ian Bicking

$ pip install virtualenv

Isolierte Python
Umgebungen

• Python Version wählbar (Symlink)

• Eigenes bin Verzeichnis

• Eigenes site-packages Verzeichnis

virtualenv anlegen

zappi ~$ virtualenv testenv
New python executable in testenv/bin/python
Installing setuptools............done.

zappi ~$ virtualenv --distribute testenv
Installing distribute................................................
.....................................................................
............................................................done.

virtualenv aktivieren
und deaktivieren

zappi ~/$ cd testenv
zappi ~/testenv$ . bin/activate
(testenv)zappi ~/testenv$ deactivate
zappi ~/testenv$

virtualenvwrapper

• Erweiterung für virtualenv

• Erleichtern das Erstellen, Löschen und
Management

• Autor: Doug Hellmann
$ pip install virtualenvwrapper
$ mkdir ~/.virtualenvs
$ export WORKON_HOME=$HOME/.virtualenvs
$ source /usr/local/bin/virtualenvwrapper.sh

mkvirtualenv
zappi ~$ mkvirtualenv testenv
Installing setuptools............done.
virtualenvwrapper.user_scripts Creating /Users/zappi/.virtualenvs/
testenv/bin/predeactivate
testenv/bin/postdeactivate
testenv/bin/preactivate
testenv/bin/postactivate
(testenv)zappi ~$

mkvirtualenv
zappi ~$ mkvirtualenv --no-site-packages --distribute testenv
Installing distribute................................................
.....................................................................
............................................................done.
testenv/bin/predeactivate
testenv/bin/postdeactivate
testenv/bin/preactivate
testenv/bin/postactivate
(testenv)zappi ~$

cdvirtualenv

(testenv)zappi ~$ cdvirtualenv
(testenv)zappi ~/.virtualenvs/testenv$

lssitepackages

(testenv)zappi ~$ lssitepackages
distribute-0.6.10-py2.6.egg easy-install.pth pip-0.7.1-py2.6.egg
setuptools.pth

(testenv)zappi ~$ lssitepackages -l
total 8
drwxr-xr-x 10 zappi zappi 340 Aug 10 19:22 distribute-0.6.10-py2.6.egg
-rw-r--r-- 1 zappi zappi 237 Aug 10 19:22 easy-install.pth
drwxr-xr-x 4 zappi zappi 136 Aug 10 19:22 pip-0.7.1-py2.6.egg
-rw-r--r-- 1 zappi zappi 30 Aug 10 19:22 setuptools.pth

cdsitepackages

(testenv)zappi ~$ cdsitepackages
(testenv)zappi ~/.virtualenvs/testenv/lib/python2.6/site-packages$ ls -l
total 8
drwxr-xr-x 10 zappi zappi 340 Aug 10 19:22 distribute-0.6.10-py2.6.egg
-rw-r--r-- 1 zappi zappi 237 Aug 10 19:22 easy-install.pth
drwxr-xr-x 4 zappi zappi 136 Aug 10 19:22 pip-0.7.1-py2.6.egg
-rw-r--r-- 1 zappi zappi 30 Aug 10 19:22 setuptools.pth

add2virtualenv

(testenv)zappi ~/Projekte/Python$ add2virtualenv django-dev
Warning: Converting "django-dev" to "/Users/zappi/Projekte/Python/django-dev"
(testenv)zappi ~/Projekte/Python$ lssitepackages
distribute-0.6.10-py2.6.egg easy-install.pth pip-0.7.1-py2.6.egg
setuptools.pth virtualenv_path_extensions.pth

virtualenv_path_extensions.pth:
/Users/zappi/Projekte/Python/django-dev

deactivate

(testenv)zappi ~$ deactivate
zappi ~$

workon

zappi ~$ workon testenv
(testenv)zappi ~$

rmvirtualenv

(testenv)zappi ~$ rmvirtualenv testenv
ERROR: You cannot remove the active environment ('testenv').
Either switch to another environment, or run 'deactivate'.
(testenv)zappi ~$ deactivate
zappi ~$ rmvirtualenv testenv

Hooks
(testenv)zappi ~$ cdvirtualenv
(testenv)zappi ~/.virtualenvs/testenv$ ls -l bin/*activate
-rw-r--r-- 1 zappi zappi 2080 Aug 10 20:07 bin/activate
-rwxrwxr-x 1 zappi zappi 68 Aug 10 20:07 bin/postactivate
-rwxrwxr-x 1 zappi zappi 70 Aug 10 20:07 bin/postdeactivate
-rwxrwxr-x 1 zappi zappi 69 Aug 10 20:07 bin/preactivate
-rwxrwxr-x 1 zappi zappi 71 Aug 10 20:07 bin/predeactivate

(testenv)zappi ~/.virtualenvs/testenv$ cd ..
(testenv)zappi ~/.virtualenvs$ ls -l *virtualenv
-rwxr-xr-x 1 zappi zappi 67 Jan 23 2010 postmkvirtualenv
-rwxr-xr-x 1 zappi zappi 61 Jan 23 2010 postrmvirtualenv
-rwxr-xr-x 1 zappi zappi 92 Jan 23 2010 premkvirtualenv
-rwxr-xr-x 1 zappi zappi 62 Jan 23 2010 prermvirtualenv

Links
• http://pypi.python.org/pypi/distribute

• http://guide.python-distribute.org/

• http://pypi.python.org/pypi/modern-package-
template

• http://pip.openplans.org/

• http://pypi.python.org/pypi/virtualenv

• http://pypi.python.org/pypi/virtualenvwrapper

Lizenz

Dieses Werk ist unter einem Creative Commons
Namensnennung-Weitergabe unter gleichen Bedingungen 3.0
Unported Lizenzvertrag lizenziert.
Um die Lizenz anzusehen, gehen Sie bitte zu
http://creativecommons.org/licenses/by-sa/3.0/ oder schicken
Sie einen Brief an Creative Commons, 171 Second Street,
Suite 300, San Francisco, California 94105, USA.

Arbeiten mit distribute, pip und virtualenv

Empfohlen

Empfohlen

Weitere ähnliche Inhalte

Was ist angesagt?

Was ist angesagt? (20)

Andere mochten auch

Andere mochten auch (20)

Ähnlich wie Arbeiten mit distribute, pip und virtualenv

Ähnlich wie Arbeiten mit distribute, pip und virtualenv (20)

Mehr von Markus Zapke-Gründemann

Mehr von Markus Zapke-Gründemann (10)

Kürzlich hochgeladen

Kürzlich hochgeladen (20)

Arbeiten mit distribute, pip und virtualenv