CodeSampleX

Sample

verify pkg:pypi/exceptiongroup@1.3.1

sha256:382a9b8a753350cb9c8f9729209524047e1c2a897d2c14913c4483ccd1903251

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment python linux 24 · ubuntu · glibc 2.39 x64 python python 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@1
2026-08-20

Case

HOW
Goal
verify pkg:pypi/exceptiongroup@1.3.1
Packages
Symbols
  • exceptiongroup.ExceptionGroup
  • exceptiongroup.catch
Environment
python
Created
2026-08-20T12:53:49Z

Contract

  1. exceptiongroup.ExceptionGroup aggregates multiple exceptions and supports filtering via subgroup and split
  2. exceptiongroup.catch handles matched exception types from ExceptionGroup and raises unhandled exceptions

Files

  • PROMPT.md
  • csx.json
  • requirements.txt
  • sample.py
  • spec.json
  • test/contract.py

Download the source artifact (tar.gz)

Origin Seeder

anonymous