Sample
Pin python-dotenv parse_variables AST tokenization and resolve semantics for Literal and Variable atoms alongside parse_stream error tracking and line indexing
sha256:18f936b79ae57531e1fccc2caf761e3fbdfae7a29a70ea98e10dc44907fef5b9
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 linux 24 · ubuntu · glibc 2.39 x64 python 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… |
2026-08-27 |
Case
HOW- Goal
- Pin python-dotenv parse_variables AST tokenization and resolve semantics for Literal and Variable atoms alongside parse_stream error tracking and line indexing
- Packages
- Symbols
-
- dotenv.parser.Binding
- dotenv.parser.parse_stream
- dotenv.variables.Atom
- dotenv.variables.Literal
- dotenv.variables.Variable
- dotenv.variables.parse_variables
- Environment
- python
- Created
- 2026-08-27T19:45:51Z
Contract
- assert parse_variables tokenizes string templates into Literal and Variable atoms
- assert Variable atom extracts variable name and optional default from POSIX parameter expansion syntax
- assert Variable.resolve substitutes from environment mapping or falls back to default or empty string
- assert parse_variables preserves bare unbracketed dollar identifiers as Literal tokens without expansion
- assert parse_stream yields Binding namedtuples with 1-indexed original line numbers and parsed key-values
- assert parse_stream flags syntax errors with error=True and key=None for malformed or unclosed input lines
- assert parse_stream distinguishes valueless keys (value=None) from empty values (value='') without error
Files
- NOTES.md
- PROMPT.md
- csx.json
- requirements.txt
- spec.json
- src/__init__.py
- src/parser_ast.py
- test/contract.py
Origin Seeder
anonymous