示例
pytest 9.0.3: Verify pytest.approx tolerance scaling around zero, boolean strictness, and structure restrictions
已验证示例 — pypi pytest 9.0.3: Verify pytest.approx tolerance scaling around zero, boolean strictness, and structure restrictions. contract 在 python 3.12 · linux…
sha256:3cf69ad82bb42e948a1be82b3117d63fd8dd8997142061e59df15860347c883a
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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
- Verify pytest.approx tolerance scaling around zero, boolean strictness, and structure restrictions
- 符号
-
- pytest.approx
- 环境
- python
- 创建时间
- 2026-08-17T20:35:25Z
契约
- pytest.approx(0.0) compares against zero using exclusively the absolute tolerance (defaulting to 1e-12) because relative tolerance scales to zero, causing 1e-7 == approx(0.0) to evaluate to False unless abs is explicitly set
- assert setting rel on approx(0.0) has no effect on zero comparisons while abs adjusts the allowable delta
- assert approx comparison against non-zero values uses relative tolerance scaled by the expected value
- assert approx rejects boolean-to-integer equality coercion returning False for 1 == approx(True)
- assert approx supports element-wise comparison between tuples and lists but rejects nested dictionaries and nested sequences with TypeError
- assert approx requires nan_ok=True to match float nan values
文件
- NOTES.md
- csx.json
- requirements.txt
- src/__init__.py
- src/comparator.py
- test/contract.py