Missing py.typed file in the built distribution

[benverhees]

Description

The py.typed file appears to be missing from the wheel distribution on PyPI, even though it's correctly configured in the project. This file is necessary to indicate that the package supports type checking.

Consequently, there are a lot of modules silencing their type checkers for isodate: Code search results for # type: ignore

Important

The py.typed file is correctly included in the wheel when building locally using python -m build, suggesting this might be related to the release process rather than the build configuration.

Current Setup

• MANIFEST.in includes: include src/isodate/py.typed
• py.typed exists in source: src/isodate/py.typed
• Local builds include py.typed in the wheel

Steps to Reproduce

Install the latest version of isodate:

pip install isodate

Check for the presence of py.typed in the installed package:

from importlib import resources

print(resources.files("isodate").joinpath("py.typed").is_file())  # Returns False

Expected Behavior

The py.typed file should be present in the installed package.

Actual Behavior

The py.typed file is missing, which means type checkers won't recognize the package's type hints.