CodeSampleX

Sample

verify charset_normalizer.from_path in pkg:pypi/charset-normalizer@3.5.1

sha256:59df8ccb30e067a102b101bf2f9b2449df740334df2562f6de428f2c213c075d

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

Verification-run environments

Environment Contract Stages Run
python 3.12 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · python@1python:3.12-alpine@sha256:d09d15e60962…
2026-08-26

Case

HOW
Goal
verify charset_normalizer.from_path in pkg:pypi/charset-normalizer@3.5.1
Packages
Symbols
  • charset_normalizer.from_path
Environment
python 3.12
Created
2026-08-26T04:36:06Z

Contract

  1. charset_normalizer.from_path(path) detects character encoding from file path or PathLike object
  2. from_path(path) returns CharsetMatches containing candidate matches with best() giving optimal CharsetMatch
  3. best.encoding identifies utf_8 and ascii encodings accurately
  4. str(best) decodes file content into unicode string
  5. from_path(path) raises FileNotFoundError for nonexistent paths and TypeError for invalid argument types

Files

  • PROMPT.md
  • csx.json
  • requirements.txt
  • spec.json
  • src/file_detector.py
  • test/contract.py

Download the source artifact (tar.gz)

Origin Seeder

anonymous