pytorch 如何使用Poetry指定特定于平台的依赖?

wwodge7n  于 2023-10-20  发布在  其他
关注(0)|答案(1)|浏览(114)

我想基于操作系统平台约束一个 * 单一 * 依赖项(即,一个包只有一个名称)。例如,包版本或包源(URL、本地轮等)可以根据0S而改变。
我尝试了文档中链接的解决方案,但不起作用。Poetry尝试为错误的操作系统平台安装错误的软件包。我还搜索了StackOverflow,发现了1个相关问题,但没有帮助。
作为一个实际的用例,我想在macOS上从PyPI安装PyTorch 2.0.1,在Ubuntu上安装一个特定的轮子(使用特定版本的CUDA)。因此,我的包规格是:

[tool.poetry.dependencies]
python = "^3.10"
torch = [
    {platform = "linux", url = "https://download.pytorch.org/whl/cu118/torch-2.0.1%2Bcu118-cp310-cp310-linux_x86_64.whl"},
    {platform = "darwin", version = "2.0.1"},
]

不幸的是,在macOS上,Poetry试图安装错误消息中提到的Linux软件包:

Installing dependencies from lock file

Package operations: 1 install, 0 updates, 0 removals

  • Installing torch (2.0.1+cu118 https://download.pytorch.org/whl/cu118/torch-2.0.1%2Bcu118-cp310-cp310-linux_x86_64.whl): Failed

  RuntimeError

  Package https://download.pytorch.org/whl/cu118/torch-2.0.1%2Bcu118-cp310-cp310-linux_x86_64.whl cannot be installed in the current environment {'implementation_name': 'cpython', 'implementation_version': '3.10.11', 'os_name': 'posix', 'platform_machine': 'arm64', 'platform_release': '22.5.0', 'platform_system': 'Darwin', 'platform_version': 'Darwin Kernel Version 22.5.0: Thu Jun  8 22:22:20 PDT 2023; root:xnu-8796.121.3~7/RELEASE_ARM64_T6000', 'python_full_version': '3.10.11', 'platform_python_implementation': 'CPython', 'python_version': '3.10', 'sys_platform': 'darwin', 'version_info': [3, 10, 11, 'final', 0], 'interpreter_name': 'cp', 'interpreter_version': '3_10'}

  at ~/Library/Application Support/pypoetry/venv/lib/python3.10/site-packages/poetry/installation/executor.py:788 in _download_link
      784│             # Since we previously downloaded an archive, we now should have
      785│             # something cached that we can use here. The only case in which
      786│             # archive is None is if the original archive is not valid for the
      787│             # current environment.
    → 788│             raise RuntimeError(
      789│                 f"Package {link.url} cannot be installed in the current environment"
      790│                 f" {self._env.marker_env}"
      791│             )
      792│

请不要以为我通过运行poetry lock确保锁文件与pyproject.toml一致。

这个问题有解决办法吗?

nhn9ugyo

nhn9ugyo1#

我找到了一个不完全令人满意的解决办法。这适用于我的具体情况,但不适用于其他情况。它包括为每个操作系统平台指定精确和显式的wheel URL,而不是依赖于PyPI for macOS:

[tool.poetry.dependencies]
python = "^3.10"
torch = [
    {platform = "darwin", url = "https://download.pytorch.org/whl/cpu/torch-2.0.1-cp310-none-macosx_11_0_arm64.whl"},
    {platform = "linux", url = "https://download.pytorch.org/whl/cu118/torch-2.0.1%2Bcu118-cp310-cp310-linux_x86_64.whl"},
]

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