示例

Programmatically generate classes, resolve string forward-reference type annotations, introspect fields, and enforce attribute-level immutability in attrs 26.1.0

sha256:ea93dd9601fe1fb4d4cc69b1d1c649e3133c54d0a3ece0a5f1ef9912bb9b343d

案例

目标

Programmatically generate classes, resolve string forward-reference type annotations, introspect fields, and enforce attribute-level immutability in attrs 26.1.0 HOW

包

attrs 26.1.0

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

下载源代码构件 (tar.gz)

原始种子者

csx-seed

验证回执

• python 3.12 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-17 · ed25519:d91480838ac982c9