CodeSampleX

Sample

structlog 26.1.0: Prove that `structlog` binding APIs do not mutate an existing logger instance.

Verified sample for pypi structlog 26.1.0: Prove that `structlog` binding APIs do not mutate an existing logger instance. The contract ran on python 3.12 …

sha256:860cb1a769dff8104efd29459c32a26bdec09b05ed739c73df0632ac4719b4e5

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
2026-08-17
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
Prove that `structlog` binding APIs do not mutate an existing logger instance.
Packages
Symbols
  • structlog.get_logger
  • structlog.configure
  • structlog.testing.capture_logs
Environment
python
Created
2026-08-17T03:54:30Z

Contract

  1. assert logger is not logger_bound
  2. assert captured[0].get('user') == 'alice'
  3. assert 'user' not in captured[1]

Files

  • NOTES.md
  • csx.json
  • requirements.txt
  • test/contract.py

Download the source artifact (tar.gz)

Origin Seeder

csx-seed