= Proposed System Wide Change: Automatic Provides for Python RPM Packages = https://fedoraproject.org/wiki/Changes/ Automatic_Provides_for_Python_RPM_Packages Change owner(s): * Tomas Orsava <https://fedoraproject.org/wiki/User:Torsava> * Miro Hroncok <https://fedoraproject.org/wiki/User:Churchyard> * Email: python-maint@xxxxxxxxxx Upon building Python packages containing packaging metadata, RPM will automatically detect the standardized name of the software (i.e. dist name, name on PyPI) in the canonical format [1] and create a virtual Provides tag with the value pythonX.Ydist(CANONICAL_NAME), where X.Y is the used Python version. RPM may also detect dependencies of the software from the metadata and automatically require them using the same syntax. == Detailed Description == If during the building of a Python package RPM encounters .egg-info, .egg-link or .dist-info files (provided in Python Wheels and Eggs), it will read the standardized name of the software (i.e. dist name, name on PyPI) in the canonical format and create a virtual Provides tag with the value pythonX.Ydist(CANONICAL_NAME), where X.Y is the used Python version. Note that the canonical format can differ slightly from the name displayed, for example, on PyPI.[1] RPM will also detect dependencies of the software from the aforementioned metadata files and automatically require them using the format pythonX.Ydist(). However, because these files don't always contain the full list of requirements (which are either in setup.py or requirements.txt), the dependency generator will not be conclusive. All Python packages will need to be rebuilt so that the virtual Provides tags are generated and can be used by users, scripts and the requires generator. == Scope == * Proposal owners: Prepare a draft for the Fedora Packaging Guidelines for Python * Maintainers of the RPM package: Backport the functionality from upsteram to Fedora. — Already done thanks to Florian Festi [2] * Release engineering: Targeted rebuild of Python packages. Ticket [3]. * List of deliverables: All Fedora deliverables will be affected, but only in a very minor way that in no way jeopardizes their delivery. * Policies and guidelines: Fedora Packaging Guidelines for Python need to be updated after the implementation so users know how to take advantage of the change. * Trademark approval: Not needed for this Change [1] https://fedoraproject.org/wiki/Changes/ Automatic_Provides_for_Python_RPM_Packages#cite_note-canonical-0 -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://lists.fedoraproject.org/admin/lists/devel@xxxxxxxxxxxxxxxxxxxxxxx
