Alexander Schneider <Alexander.Schneider <at> uni-duesseldorf.de> writes:
> Will there be build-in Metadata in the new PEP 426 format online on PyPI > for all packages? If yes, are there already specifications on how they > will be retreavable? I have experimental support for PEP 426 metadata available, which is up-to-date with the spec apart from the changes Nick linked to. For any given package, you can access some JSON at an URL based on the project name. For example, setuptools 0.7.5 metadata is available at http://www.red-dove.com/pypi/projects/S/setuptools/package-0.7.5.json If you deserialize the JSON at an URL like the above into a dict, the PEP 426 metadata is available in the subdict at key "index-metadata" in the top-level dict. Example from setuptools 0.7.5: "index-metadata": { "description": "omitted for brevity", "license": "PSF or ZPL", "contacts": [ { "role": "author", "name": "The fellowship of the packaging", "email": "distutils-sig@python.org" } ], "summary": "Easily download, build, install, upgrade, and uninstall Python packages", "project_urls": { "Home": "https://pypi.python.org/pypi/setuptools"; }, "keywords": [ "CPAN", "PyPI", "distutils", "eggs", "package", "management" ], "metadata_version": "2.0", "extras": [ "certs", "ssl" ], "version": "0.7.5", "run_may_require": [ { "environment": "sys_platform=='win32'", "dependencies": [ "wincertstore (== 0.1)" ], "extra": "ssl" }, { "environment": "sys_platform=='win32' and python_version=='2.4'", "dependencies": [ "ctypes (== 1.0.2)" ], "extra": "ssl" }, { "dependencies": [ "certifi (== 0.0.8)" ], "extra": "certs" }, { "environment": "python_version in '2.4, 2.5'", "dependencies": [ "ssl (== 1.16)" ], "extra": "ssl" } ], "classifiers": [ "Development Status :: 5 - Production/Stable", "Intended Audience :: Developers", "License :: OSI Approved :: Python Software Foundation License", "License :: OSI Approved :: Zope Public License", "Operating System :: OS Independent", "Programming Language :: Python :: 2.4", "Programming Language :: Python :: 2.5", "Programming Language :: Python :: 2.6", "Programming Language :: Python :: 2.7", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.1", "Programming Language :: Python :: 3.2", "Programming Language :: Python :: 3.3", "Topic :: Software Development :: Libraries :: Python Modules", "Topic :: System :: Archiving :: Packaging", "Topic :: System :: Systems Administration", "Topic :: Utilities" ], "name": "setuptools" }, I expect this metadata to track the PEP as changes to it are published. Currently, the top-level dict contains some legacy representations of the metadata which will be removed in due course. I would hope that once the dust settles on the PEP, this metadata (the PEP 426 part) can be migrated to PyPI. Regards, Vinay Sajip _______________________________________________ Distutils-SIG maillist - Distutils-SIG@python.org http://mail.python.org/mailman/listinfo/distutils-sig
