示例
pydantic 2.13.4: Update Pydantic 2.13.4 models without bypassing validation through model_copy or trusted existing instances
已验证示例 — pypi pydantic 2.13.4: Update Pydantic 2.13.4 models without bypassing validation through model_copy or trusted existing instances. contract 在 python…
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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 3.12 linux x64 python 3.12 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
- Update Pydantic 2.13.4 models without bypassing validation through model_copy or trusted existing instances
- 符号
-
- pydantic.BaseModel.model_copy
- pydantic.BaseModel.model_validate
- pydantic.ConfigDict.revalidate_instances
- pydantic.ConfigDict.validate_assignment
- pydantic.ValidationError
- 环境
- python 3.12
- 创建时间
- 2026-08-17T02:16:00Z
契约
- model_copy(update=...) trusts update data: it neither coerces an invalid string amount nor enforces extra='forbid'.
- A model copied with an undeclared update exposes that attribute and marks it as set, while model_dump omits it and the original remains unchanged.
- Rebuilding from model_dump plus updates with model_validate rejects both the non-positive amount and the undeclared field, while valid strings are coerced to Decimal.
- With the default revalidate_instances='never', model_validate(existing_instance) returns the same instance and accepts an invalid post-construction assignment.
- revalidate_instances='always' rejects a previously damaged instance, while validate_assignment=True rejects invalid mutation immediately and coerces valid assignments.
文件
- NOTES.md
- csx.json
- requirements.lock
- requirements.txt
- src/__init__.py
- src/models.py
- test/contract.py