Sample
Configure nested environment variable parsing explicitly with pydantic-settings instead of assuming a default '__' delimiter
sha256:7f1908439a5f4318c360685d9940e1fc18d9314fe820f62a16166c0baf722a75
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Case
- Goal
- Configure nested environment variable parsing explicitly with pydantic-settings instead of assuming a default '__' delimiter CONFIG
- Packages
- pydantic-settings 2.15.0 pydantic 2.13.4 python-dotenv 1.2.2
- Environment
- python 3.12
- Created
- 2026-08-17T03:19:39Z
Commonly assumed
Pydantic BaseSettings reads nested environment variables using '__' as a delimiter by default.
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- assert a DATABASE__HOST environment variable is ignored for a nested model when env_nested_delimiter is not configured
- assert SettingsConfigDict(env_nested_delimiter='__') maps DATABASE__HOST into database.host
Files
- csx.json
- requirements.txt
- test/contract.py
Download the verified artifact (tar.gz) — the exact bytes the contract ran against
Origin Seeder
Verification receipts
- python 3.12 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-17 · ed25519:d91480838ac982c9