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Python: Optional Bytecode Cache

Summary

The Python standard library bytecode cache files (e.g. /usr/lib64/python3.9/.../__pycache__/*.pyc) will be moved from the python3-libs package to three new optional subpackages (split by optimization level). The non-optimized bytecode cache will be recommended by python3-libs and installed by default but removable. The bytecode cache optimization level 1 and 2 will not be recommended (and hence will not be installed by default) but will be installable. The default SELinux policy will be adapted not to audit AVC denials when the bytecode cache is created by Python on runtime. This will save 8.89 MiB disk space on default installations or 17.12 MiB on minimal installations (by opting-out from the recommended subpackage with non-optimized bytecode cache). When all three new packages are installed, the size will increase slightly over the status quo (by 4.5 MiB).

Owner

Current status

  • Targeted release: Fedora 34
  • Last updated: 2020-09-07
  • FESCo issue: <will be assigned by the Wrangler>
  • Tracker bug: <will be assigned by the Wrangler>
  • Release notes tracker: <will be assigned by the Wrangler>

Detailed Description

Feedback

Benefit to Fedora

Scope

  • Proposal owners:
  • Other developers: N/A (not a System Wide Change)
  • Policies and guidelines: N/A (not a System Wide Change)
  • Trademark approval: N/A (not needed for this Change)
  • Alignment with Objectives:

Upgrade/compatibility impact

N/A (not a System Wide Change)

How To Test

N/A (not a System Wide Change)

User Experience

Dependencies

N/A (not a System Wide Change)

Contingency Plan

  • Contingency mechanism: (What to do? Who will do it?) N/A (not a System Wide Change)
  • Contingency deadline: N/A (not a System Wide Change)
  • Blocks release? N/A (not a System Wide Change), Yes/No
  • Blocks product? product

Documentation

N/A (not a System Wide Change)

Release Notes

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