示例
attrs 26.1.0: Programmatically generate classes, resolve string forward-reference type annotations, introspect fields, and enforce attribute-level immutability in attrs 26.1.0
已验证示例 — pypi attrs 26.1.0: Programmatically generate classes, resolve string forward-reference type annotations, introspect fields, and enforce…
sha256:ea93dd9601fe1fb4d4cc69b1d1c649e3133c54d0a3ece0a5f1ef9912bb9b343d
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
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。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 2
声明的环境
python linux x64 python python pip
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| 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 |
案例
HOW- 目标
- Programmatically generate classes, resolve string forward-reference type annotations, introspect fields, and enforce attribute-level immutability in attrs 26.1.0
- 符号
-
- attrs.resolve_types
- attrs.make_class
- attrs.fields_dict
- attrs.fields
- attrs.has
- attrs.validate
- attrs.astuple
- attrs.filters.exclude
- attrs.setters.frozen
- attrs.exceptions.FrozenAttributeError
- attrs.exceptions.FrozenInstanceError
- attrs.exceptions.NotAnAttrsClassError
- 环境
- python
- 创建时间
- 2026-08-17T13:04:07Z
契约
- attrs.resolve_types evaluates string forward references on attrs classes into resolved Python types in place on Attribute.type, while raising NotAnAttrsClassError on non-attrs classes
- assert attrs.make_class dynamically constructs slotted, frozen, and validated attrs classes with full field definition support
- assert attrs.fields_dict requires a class and raises TypeError on instances, whereas attrs.fields accepts both classes and instances
- assert attrs.has returns True for attrs classes and instances and False for standard Python objects
- assert on_setattr=setters.frozen raises FrozenAttributeError on field mutation while @frozen raises FrozenInstanceError
- assert attrs.validate manually re-evaluates all field validators against current instance state on demand
- assert attrs.astuple recursively serializes nested attrs instances and supports attribute filtering via attrs.filters.exclude
- assert initialization lifecycle sequence executes __attrs_pre_init__, converters, validators with converted values, and __attrs_post_init__ deterministically
文件
- NOTES.md
- csx.json
- requirements.txt
- src/__init__.py
- src/models.py
- test/__init__.py
- test/contract.py