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Packaging pratique (fr) - pycon.fr 2014
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xordoquy
October 25, 2014
Programming
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Packaging pratique (fr) - pycon.fr 2014
Présentation général du packaging Python
xordoquy
October 25, 2014
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Transcript
packaging xavier ordoquy
@linovia_net
Changer une miriade de scripts
en un système contrôlé.
Distribution: Une « distribution » Python est un fichier d’archive
versionné qui contient des paquets Python, des modules et d’autres fichiers de ressources qui sont utilisés pour distribuer une « Release ». Ce fichier de distribution est ce qu’un utilisateur final téléchargera d’Internet et installera.
Par la suite: packaging == distribution
exemple : pip install sentry[postgres]
Packaging Python : pourquoi ?
multi plateformes
Packaging Python : comment ?
3 outils + du code !!
virtualenv pyenv
Isoler le projet du reste
y compris avec docker, lxc, vagrant…
gain: fin des conflits
dépôt pypi
dépôt ‘officiel’ pypi.python.org
dépôt privé devpi
gain: distribution simple
pip
pip install -e
pip freeze (-l)
requirements: pip install -r
gain: gestion des dépendances
setup.py
use setuptools
recopiez !!
versions: PEP440 1.2.4.dev3557 1.2.4a1 1.2.4b1 1.2.4c1 == 1.2.4rc1 1.2.4 1.2.4.post1
images, css..: MANIFEST.in
gain: application web
executables : entry_points
gain : aucun chemin en dur
requirements : extra_requires
exemple : pip install sentry[postgres] pip install -e .[tests,dev]
gain: uniformisation des méthodes
Bonus: wheel
gain: temps
Bonus 2: stevedore
Bonus 3: du code !
setup( name='project', version='0.1.3a4', description='Some description', long_description=open('README.rst').read(), author='Xavier Ordoquy', author_email='
[email protected]
', url='http://github.com/xx/yy',
packages=find_packages(exclude=[‘tests']), zip_safe=False, include_package_data=True, classifiers=[ 'Framework :: Django', ] ) exemple:
setup( … install_requires=install_requires, extras_require={ 'tests': tests_require, 'dev': dev_requires, 'postgres': install_requires
+ pg_requires, } ) exemple:
setup( … entry_points={ 'console_scripts': [ 'sentry = sentry.utils.runner:main', ], },
) exemple:
class PyTest(TestCommand): def finalize_options(self): TestCommand.finalize_options(self) self.test_args = ['tests'] self.test_suite =
True def run_tests(self): import pytest errno = pytest.main(self.test_args) sys.exit(errno) setup( … cmdclass={'test': PyTest}, ) exemple:
Présentation http://bit.ly/1skB3K4 Python Packaging User Guide http://bit.ly/1ww8Nbz setup.py Sentry http://bit.ly/1FMMCnG
Merci