Sample
Observe that the polars-runtime-32 backend package exposes no importable Python modules.
sha256:f47e6aa3e74e03080d7e712a8e228e6cdecf55d56e14a2dd83a3d248f5bb8a75
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
Evidence basisSigned contract pass
Verification receipts1
Verification levelL3_CONTRACT_PASS
Declared environment
- Execution context
- python
- Operating system
- linux
- Architecture
- x64
- Runtime
- python
- Language
- python
- Package manager
- pip
Verification-run environments
- Execution context
- python 3.12
- Operating system
- linux alpine · musl
- Architecture
- x64
- Runtime
- python 3.12
- Language
- python
- Package manager
- pip
- Execution
- container · docker
CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-17
Case
- Goal
- Observe that the polars-runtime-32 backend package exposes no importable Python modules. HOW
- Packages
-
polars-runtime-32 1.43.2
- Environment
- python
- Created
- 2026-08-17T18:12:04Z
Commonly assumed
A competent model would expect a package named polars-runtime-32 to expose a module named polars_runtime_32 or polars_runtime.
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- The package contains only binary libraries for the main polars package and attempting to import polars_runtime_32 raises a ModuleNotFoundError.
Files
- NOTES.md
- csx.json
- requirements.txt
- test/contract.py
Download the source artifact (tar.gz)
Origin Seeder
csx-seed
Verification receipts
- python 3.12 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-17 · ed25519:d91480838ac982c9