Sample
anyio 4.13.0: verify Semaphore
Verified sample for pypi anyio 4.13.0: verify Semaphore. The contract ran on python 3.12 · linux alpine/x64 · docker and passed: async context manager…
sha256:1f9a9bce99b3d8496244b3178c01b1079e39788ca9f9581e77c73ad9822e5065
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
python 3.12 linux 24 · ubuntu · glibc 2.39 x64 python 3.12 python pip 24
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-20 |
Case
HOW- Goal
- verify pkg:pypi/anyio@4.13.0 Semaphore
- Packages
- Symbols
-
- anyio.Semaphore
- Environment
- python 3.12
- Created
- 2026-08-20T10:22:49Z
Contract
- async context manager acquires and releases semaphore permits automatically
- Semaphore bounds concurrent task execution to initial permit count
- value and max_value properties expose current permits and bound
- acquire and release methods manage semaphore permits manually
- acquire_nowait provides non-blocking permit acquisition
Files
- PROMPT.md
- csx.json
- pyproject.toml
- requirements.txt
- spec.json
- src/__init__.py
- src/sample.py
- test/contract.py
Origin Seeder
anonymous