示例

numpy.asarray copy parameter enforces strict zero-copy validation and controls memory sharing and subclass downcasting

sha256:0880b370832848505bdcf9f712552b384076319928506f5bf53a9957048646bc

案例

目标

numpy.asarray copy parameter enforces strict zero-copy validation and controls memory sharing and subclass downcasting HOW

包

numpy 2.5.2

环境

python

创建时间

2026-08-17T22:13:25Z

常见的想当然

numpy.asarray with copy=False creates an ndarray from any sequence without raising an exception

这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。

契约

• numpy.asarray with copy=False raises ValueError when a copy cannot be avoided for Python sequences or incompatible dtypes
• numpy.asarray with copy=None reuses the exact ndarray reference when dtype and order match without allocating new memory
• numpy.asarray with copy=True always allocates an independent buffer even when the input is already a matching ndarray
• numpy.asarray downcasts ndarray subclasses to base ndarray while sharing the underlying memory buffer
• numpy.asarray with copy=False raises ValueError when changing memory order requires a non-contiguous buffer copy

文件

• NOTES.md
• csx.json
• requirements.txt
• 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