Sample
Parse PEP 508 environment markers and evaluate them against environment dictionaries with boolean logic and extra normalization using packaging.markers
sha256:856cc9b895735f9b6352d7707412b0ed349fb5d6c6aabcdfc9af0f8fd4bbc4f0
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
- 1
- Signing keys that built it
- 1
Declared environment
linux 24 · ubuntu · glibc 2.39 x64 pip
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| python 3.12 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1python:3.12-alpine@sha256:d09d15e60962… |
2026-08-27 |
Case
HOW- Goal
- Parse PEP 508 environment markers and evaluate them against environment dictionaries with boolean logic and extra normalization using packaging.markers
- Packages
- Symbols
-
- packaging.markers.InvalidMarker
- packaging.markers.Marker
- packaging.markers.default_environment
- Created
- 2026-08-27T18:32:25Z
Contract
- parse PEP 508 environment markers with boolean operators and version comparisons
- evaluate markers against custom environment dictionaries overriding os and python version
- evaluate markers against the runtime default environment
- match extras with automatic canonicalization of hyphens and underscores
- raise InvalidMarker on malformed expressions or invalid marker variable names
Files
- PROMPT.md
- csx.json
- requirements.txt
- spec.json
- src/__init__.py
- src/marker_evaluator.py
- test/contract.py
Origin Seeder
anonymous