• PackagingWG
• 2020-05-20-pip

Dev Meeting on May 20

• TP

  • Resolvelib 0.4.0 update ready for review https://github.com/pypa/pip/pull/8267/

  • Tried briefly to upgrade packaging 20.4 and NormalizedName caused no linting errors 🤔

  • Avoid ResolutionTooDeep https://github.com/pypa/pip/pull/8275

• Paul fighting with Pytest to skip test based on fixture
• Pradyun

  • Filed PR for visualisation https://github.com/sarugaku/resolvelib/pull/52

  • Deep in college stuff and expected to be mostly off the radar for the coming week

Dev Meeting on May 19

• Pradyun got 1000+ GH notifications down to ~350-ish.
  • Yay!

  • 325 of the remaining 350, are from pypa/pip.

• Pending PRs
  • Wheel cache

    • https://github.com/pypa/pip/pull/8066

    • Waiting on Paul's review

  • Resolvelib 0.4.0 update

    • https://github.com/pypa/pip/pull/8267/

• What are we working on next? (this week)
  • "open pool":
    • packaging 20.4 is out!
      • normalized name stuff.
    • yanked warning
      • Depends on the wheel cache PR

      • test_install_yanked_file_and_print_warning

      • New resolver needs to print a warning when installing a yanked release.

    • resolvelib -- removing ResolutionTooDeep raising logic.

      • we have to figure out what to replace it with, but this is a required step regardless of what other metrics we pick.
    • markers handling

      • https://github.com/pypa/pip/pull/8230

    • local-dir/[extra]

      • extras + not SpecifierRequirement

    • naming!
      • parent vs template
      • ???
  • Pradyun
    • (overflow) Visualizations (dump into examples/vis)
  • Tzu-ping

    • ResolveLib 0.4.0

      • Finder cache

        • Always passes a bunch of requirements, to find_matches, need to check how caching would work?

        • Provider vs Finder?

        • For experimenting lru_cache()

      • Refactor the 150-line find_matches() implementation

  • Paul
    • Look at remaining errors in the test suite.

      • Putting down xfails for test suite errors.

      • Mark that they're issues, and write xfails.

    • https://github.com/pypa/pip/pull/8256

    • Constraints
      • URL constraints -- PEP 508 style URLs feels like it'd be worth it.
• Later later
  • yanked vs prereleases

    • https://github.com/pypa/pip/issues/8262