sage --package create --pypi: Fill distros/

[mkoeppe]

Except for exceptions, the package names of Python packages in distributions follow simple naming schemes.

When creating a new PyPI package using sage --package create --pypi, we should be able to create the files in distros/ as well.

[mkoeppe]

• conda.txt could be obtained using grayskull once sufficiently stable, as proposed in Replace bootstrap-conda by grayskull and update conda lock files #37447. Doubts: It's dead, Jim. https://github.com/conda/grayskull/graphs/contributors, https://github.com/conda/grayskull/issues

• Use of a skeleton generator would obviously be more appropriate as part of sage --package create (= at package maintenance time) than at bootstrapping time as suggested in Replace bootstrap-conda by grayskull and update conda lock files #37447

• A proof-of-concept tool py-show by @rgommers from the PEP 725 effort has some package mappings for arch, fedora, ubuntu, conda (and also some simple version of our sage-print-system-package-command)

Other relevant tools:

• https://github.com/package-url/packageurl-python

[rgommers]

I need to give PEP 725 another push soon. In case you find gaps in the metadata, I'd be happy to learn/address. Also, grayskull now has initial PEP 725 support which may be relevant:

• prototype implementation of interpreting PEP725 metadata conda/grayskull#518
• Add more package mappings for PEP 725 conda/grayskull#528