Sample
structlog 26.1.0: Hand off structlog to stdlib logging without dictConfig disabling pre-existing loggers or misplacing renderers in the processor chain
Verified sample for pypi structlog 26.1.0: Hand off structlog to stdlib logging without dictConfig disabling pre-existing loggers or misplacing renderers in…
sha256:2fa8cd02773687052536b66aa96f386d05a05b1a64ea4aae357c33957553fe75
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 linux x64 python python pip
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 |
2026-08-15 |
| python 3.12 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-18 |
Case
HOW- Goal
- Hand off structlog to stdlib logging without dictConfig disabling pre-existing loggers or misplacing renderers in the processor chain
- Packages
- Symbols
-
- structlog.configure
- structlog.stdlib.LoggerFactory
- structlog.stdlib.ProcessorFormatter
- structlog.stdlib.ProcessorFormatter.wrap_for_formatter
- structlog.stdlib.filter_by_level
- logging.config.dictConfig
- Environment
- python
- Created
- 2026-08-15T17:11:14Z
Contract
- assert logging.config.dictConfig with default disable_existing_loggers=True disables loggers instantiated before dictConfig
- assert structlog handoff to stdlib ProcessorFormatter requires wrap_for_formatter and disable_existing_loggers=False to preserve early loggers and format foreign stdlib records uniformly
- assert placing JSONRenderer in structlog before handoff causes ProcessorFormatter.format to raise AttributeError on string msg
- assert structlog.stdlib.filter_by_level evaluates the effective log level of the underlying stdlib Logger
Files
- NOTES.md
- csx.json
- pyproject.toml
- requirements.lock
- requirements.txt
- test/contract.py