export type annotations in package #679
Merged
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This PR adds a
py.typed
marker file to our package, which is necessary for tools such as mypy to discover pdfminer's new type annotations when it is installed via pypi.This fixes mypy errors such as the following in downstream tools:
References:
https://www.python.org/dev/peps/pep-0561/#packaging-type-information
https://mypy.readthedocs.io/en/stable/installed_packages.html#creating-pep-561-compatible-packages
How Has This Been Tested?
I built a wheel, installed it locally, and verified that mypy no longer issues the errors that it does with the 20211012 release.