Sample
Differentiate MovedModule specs from MovedAttribute lookup failures, proxy isolation in moves.urllib, and ensure_str type strictness in six
sha256:78990b35868b7607dc97d6379eebb760365d86484a54b1113dc0b5f9493c2fe8
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
- Differentiate MovedModule specs from MovedAttribute lookup failures, proxy isolation in moves.urllib, and ensure_str type strictness in six HOW
- Packages
-
six 1.17.0
- Environment
- python
- Created
- 2026-08-17T03:54:25Z
Contract
- importlib.util.find_spec('six.moves.queue') is not None and importlib.util.find_spec('six.moves.StringIO') is None
- six.moves.urllib.parse is not urllib.parse and not hasattr(six.moves.urllib.parse, 'DefragResult')
- six.ensure_str(b'data') == 'data' and raises(TypeError, six.ensure_str, bytearray(b'data'))
- Child.__bases__ == (Base,) and 'temporary_class' not in [c.__name__ for c in Child.__mro__]
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