示例

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

MIT-0

执行证据

声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。

声明的环境 python linux 24 · ubuntu · glibc 2.39 x64 python python pip

环境	契约	阶段	运行日期
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

HOW

目标: Pin python-dotenv parse_variables AST tokenization and resolve semantics for Literal and Variable atoms alongside parse_stream error tracking and line indexing
包: python-dotenv 1.2.2
符号: dotenv.parser.Binding
dotenv.parser.parse_stream
dotenv.variables.Atom
dotenv.variables.Literal
dotenv.variables.Variable
dotenv.variables.parse_variables
环境: python
创建时间: 2026-08-27T19:45:51Z

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

匿名