资源在本地可用，但使用 Poetry 打包和部署时 "No such file or directory"

Question

我使用定义为常量的路径，例如TF_CONSTS = 'consts/tf_keras_param_config.json' 并且它们在开发过程中运行良好。

但是，当使用 Poetry（即 poetry build --format sdist）构建并部署包时，即使 JSON 文件与 Python 脚本一起复制，这些引用也会变得无效：

FileNotFoundError: [Errno 2] No such file or directory: 'some_package/consts/tf_keras_param_config.json'

为什么？

Answer 1

相对路径在开发期间工作正常，但是 - 当代码被打包然后安装时 - 它们必须转换为绝对路径并且必须动态确定（它们取决于安装包的位置）：

import pkg_resources

# necessary for the path to resolve properly when package is installed
TF_CONSTS = pkg_resources.resource_filename("some_package", "consts/tf_keras_param_config.json")

也考虑 importlib.resources:

This module provides functionality similar to pkg_resources Basic Resource Access without the performance overhead of that package. This makes reading resources included in packages easier, with more stable and consistent semantics.

资源在本地可用，但使用 Poetry 打包和部署时 "No such file or directory"

Resources available locally but "No such file or directory" when packaged and deployed with Poetry

python

resource-files