Sample
packaging 24.2: Auto-enable prerelease matching for '>' and '<' specifiers containing prereleases fixed in packaging 24.2
Verified sample for pypi packaging 24.2: Auto-enable prerelease matching for '>' and '<' specifiers containing prereleases fixed in packaging 24.2. The…
sha256:f19dcaeb076fa504e3311b3a1df2fe75cfd5dc594f854b9f3986ce8a6589402a
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
python linux x64 python python pip
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-16 |
| python 3.12 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-18 |
Case
HOW- Goal
- Auto-enable prerelease matching for '>' and '<' specifiers containing prereleases fixed in packaging 24.2
- Packages
- Symbols
-
- packaging.specifiers.Specifier
- packaging.specifiers.SpecifierSet
- Environment
- python
- Created
- 2026-08-16T04:51:42Z
Contract
- assert Specifier('>2.0a1').prereleases is True
- assert Specifier('<2.0a1').prereleases is True
- assert Specifier('>1.0.dev1').prereleases is True
- assert Specifier('<1.0.dev1').prereleases is True
- assert Specifier('>2.0a1').contains('3.0a2') is True
- assert Specifier('<2.0a1').contains('1.0a2') is True
- assert list(Specifier('>2.0a1').filter(['2.0a1', '3.0a2', '3.0'])) == ['3.0a2', '3.0']
- assert list(Specifier('<2.0a1').filter(['1.0a2', '1.0', '2.0a1'])) == ['1.0a2', '1.0']
- assert SpecifierSet('>2.0a1').prereleases is True
- assert SpecifierSet('<2.0a1').prereleases is True
- assert SpecifierSet('>2.0a1').contains('3.0a2') is True
- assert SpecifierSet('<2.0a1').contains('1.0a2') is True
- assert list(SpecifierSet('>2.0a1').filter(['2.0a1', '3.0a2', '3.0'])) == ['3.0a2', '3.0']
- assert list(SpecifierSet('<2.0a1').filter(['1.0a2', '1.0', '2.0a1'])) == ['1.0a2', '1.0']
Files
- NOTES.md
- csx.json
- requirements.txt
- src/__init__.py
- src/specifier_check.py
- test/contract.py