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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Can't open orphan path on bare importlib.resources.files() under zipapp","articleBody":"# Bug report\n\n### Bug description:\n\nContext: In Python 3.12 the function importlib.resources.files() was updated: https://docs.python.org/3/library/importlib.resources.html#importlib.resources.files\n\n\u003e Changed in version 3.12: package parameter was renamed to anchor. anchor can now be a non-package module and if omitted will default to the caller’s module. package is still accepted for compatibility but will raise a [DeprecationWarning](https://docs.python.org/3/library/exceptions.html#DeprecationWarning). Consider passing the anchor positionally or using importlib_resources \u003e= 5.10 for a compatible interface on older Pythons.\n\nThe Issue: When using `importlib.resources.files()`, I am able to open and read a text file included as package data in my package. However, if I zip up my package with zipapp and run the .pyz file, it is unable to read the text file.\nIf I use `importlib.resources.files(\"mypkg\")` it will work in both cases.\n\nMinimal example:\n\nCreate a project directory named `mypkg` with the [src layout](https://setuptools.pypa.io/en/latest/userguide/package_discovery.html#src-layout).\n\nCreate the following files.\n\nmypkg/src/mypkg/a.py\n```python\nimport importlib.resources\n\ndef main():\n    x = importlib.resources.files() / \"data.txt\"\n    print(x.read_text())\n```\nmypkg/src/mypkg/data.txt\n```text\ndatadata\n```\n\nIn pyproject.toml make sure to set up the entry script and include the data file.\n\nmypkg/pyproject.toml\n```\n[project.scripts]\nmyscript = \"mypkg.a:main\"\n\n[tool.setuptools.package-data]\nmypkg = [\"*.txt\"]\n```\n\nInstall the package into a fresh Python (virtual) environment with pip.\nRun `myscript` and verify it prints `datadata`.\n\nNow back in the mypkg project root folder, we will generate a .pyz file with zipapp and run the program from the .pyz file.\n\nRun `pip install . --target buildtemp --upgrade \u0026\u0026 python3 -m zipapp buildtemp --main mypkg.a:main -p '/usr/bin/env python3' -o mypkg.pyz` in the terminal.\n\nRun `./mypkg.pyz`. This results in an error:\n```\nTraceback (most recent call last):\n  File \"\u003cfrozen runpy\u003e\", line 198, in _run_module_as_main\n  File \"\u003cfrozen runpy\u003e\", line 88, in _run_code\n  File \"/home/win/code/sandbox/python/mypkg/./mypkg.pyz/__main__.py\", line 3, in \u003cmodule\u003e\n  File \"/home/win/code/sandbox/python/mypkg/./mypkg.pyz/mypkg/a.py\", line 6, in main\n  File \"/home/win/.local/share/mise/installs/python/3.12.4/lib/python3.12/importlib/resources/abc.py\", line 89, in read_text\n    with self.open(encoding=encoding) as strm:\n         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n  File \"/home/win/.local/share/mise/installs/python/3.12.4/lib/python3.12/importlib/resources/_adapters.py\", line 139, in open\n    raise FileNotFoundError(\"Can't open orphan path\")\nFileNotFoundError: Can't open orphan path\n```\n\nNote that if you change `x = importlib.resources.files() / \"data.txt\"` to `x = importlib.resources.files(\"mypkg\") / \"data.txt\"`, it will work when running the .pyz file.\n\n\n\n### CPython versions tested on:\n\n3.12\n\n### Operating systems tested on:\n\nLinux, macOS\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-123037\n* gh-123986\n* gh-124011\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/winstontsai","@type":"Person","name":"winstontsai"},"datePublished":"2024-07-14T06:56:00.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":16},"url":"https://github.com/121735/cpython/issues/121735"}