Sample
tenacity 9.1.4: Retry a flaky call with backoff and give up on the errors that will never succeed
Verified sample for pypi tenacity 9.1.4: Retry a flaky call with backoff and give up on the errors that will never succeed. The contract ran on python 3.12 …
sha256:0ecf1213d98587dc35571381763d2382bcdd44d9136b07b21b8b755dbca8ceb9
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 |
2026-08-13 |
| python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-17 |
Case
HOW- Goal
- Retry a flaky call with backoff and give up on the errors that will never succeed
- Packages
- Symbols
-
- retry
- stop_after_attempt
- wait_fixed
- retry_if_exception_type
- Environment
- python 3.12
- Created
- 2026-08-13T18:43:56Z
Contract
- retry a function that fails twice then succeeds
- assert it was called exactly three times
- assert an exception type outside the retry filter is raised immediately
- assert exhausting the attempts raises RetryError carrying the last failure
Files
- csx.json
- requirements.txt
- src/__init__.py
- src/retry.py
- test/contract.py