I recently blogged about Python packaging with py2pack . Meanwhile I created a new project called metaextract (available on github and pypi) based on the experience I made while improving py2pack.
metaextract does only one thing which is extracting the metadata from a python archive. Here’s an example – the output is JSON:
$ metaextract oslo.log-3.16.0.tar.gz
{
"data": {
"data_files": null,
"entry_points": {
"oslo.config.opts": [
"oslo.log = oslo_log._options:list_opts"
]
},
"extras_require": {
"fixtures": [
"fixtures>=3.0.0 # Apache-2.0/BSD"
]
},
"has_ext_modules": null,
"install_requires": [
"debtcollector>=1.2.0",
"oslo.config>=3.14.0",
"oslo.context>=2.6.0",
"oslo.i18n>=2.1.0",
"oslo.serialization>=1.10.0",
"oslo.utils>=3.16.0",
"pbr>=1.6",
"pyinotify>=0.9.6",
"python-dateutil>=2.4.2",
"six>=1.9.0"
],
"scripts": null,
"setup_requires": [
"pbr>=1.8"
],
"tests_require": [
"bandit>=1.1.0",
"coverage>=3.6",
"hacking<0.11,>=0.10.0",
"mock>=2.0",
"oslosphinx!=3.4.0,>=2.5.0",
"oslotest>=1.10.0",
"python-subunit>=0.0.18",
"reno>=1.8.0",
"sphinx!=1.3b1,<1.3,>=1.2.1",
"testrepository>=0.0.18",
"testscenarios>=0.4",
"testtools>=1.4.0"
]
},
"version": 1
}
The data is directly extracted from setuptools (or distutils). You can also run metaextract directly for a setup.py file:
$ python setup.py --command-packages=metaextract metaextract
or use it from your code:
$ python
>>> import pprint
>>> from metaextract import utils as meta_utils
>>> pprint.pprint(meta_utils.from_archive("oslo.log-3.16.0.tar.gz"))
{u'data': {u'data_files': None,
u'entry_points': {u'oslo.config.opts': [u'oslo.log = oslo_log._options:list_opts']},
u'extras_require': {u'fixtures': [u'fixtures>=3.0.0 # Apache-2.0/BSD']},
u'has_ext_modules': None,
u'install_requires': [u'debtcollector>=1.2.0',
u'oslo.config>=3.14.0',
u'oslo.context>=2.6.0',
u'oslo.i18n>=2.1.0',
u'oslo.serialization>=1.10.0',
u'oslo.utils>=3.16.0',
u'pbr>=1.6',
u'pyinotify>=0.9.6',
u'python-dateutil>=2.4.2',
u'six>=1.9.0'],
u'scripts': None,
u'setup_requires': [u'pbr>=1.8'],
u'tests_require': [u'bandit>=1.1.0',
u'coverage>=3.6',
u'hacking<0.11,>=0.10.0',
u'mock>=2.0',
u'oslosphinx!=3.4.0,>=2.5.0',
u'oslotest>=1.10.0',
u'python-subunit>=0.0.18',
u'reno>=1.8.0',
u'sphinx!=1.3b1,<1.3,>=1.2.1',
u'testrepository>=0.0.18',
u'testscenarios>=0.4',
u'testtools>=1.4.0']},
u'version': 1}
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