Sample
wrapt 2.3.0: Subclass the right object proxy base in wrapt 2.x so iteration works
Verified sample for pypi wrapt 2.3.0: Subclass the right object proxy base in wrapt 2.x so iteration works. The contract ran on python 3.12 · linux…
sha256:61d02a30076981ae851aad530bd2d9dbce05537be4411337993c75500740cdd6
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 3.12 linux x64 python 3.12 python pip
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| python 3.12 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-14 |
| python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-18 |
Case
HOW- Goal
- Subclass the right object proxy base in wrapt 2.x so iteration works
- Packages
- Symbols
-
- BaseObjectProxy
- ObjectProxy
- AutoObjectProxy
- with_signature
- function_wrapper
- Environment
- python 3.12
- Created
- 2026-08-14T20:44:52Z
Contract
- assert ObjectProxy is a subclass of BaseObjectProxy, not an alias for it
- assert BaseObjectProxy around a list refuses to iterate while isinstance and hasattr both claim it is iterable
- assert the 1.x shape of subclassing ObjectProxy still iterates, but reports a non-iterable as iterable
- assert AutoObjectProxy agrees with reality both ways and builds a new class per instance
- assert wrapt.signature is a module so calling it raises TypeError, while inspect.signature reads the original signature through a wrapt decorator
- assert wrapt.function_wrapper is not wrapt.decorator and takes no enabled/adapter/proxy keywords
- assert proxy subclass state needs the _self_ prefix or it leaks onto the wrapped object
Files
- csx.json
- requirements.txt
- src/__init__.py
- src/compat.py
- test/contract.py