Sphinx: Render inherited overloads with autodoc

This extension works around a small issue in Sphinx where autodoc does not show inherited @overload signatures, by manually resolving overloads during the autodoc-process-signature event. Dynamically, the overloads for a function can only be obtained using the typing.get_overloads() function, which was introduced in Python 3.11. The latter is therefore a hard requirement.

Installation

For testing, you can install the sphinxcontrib.autodoc_inherit_overload package from pip:

pip install sphinxcontrib.autodoc_inherit_overload

When adding the package to your dependencies, make sure you guard against incorrect Python versions:

sphinxcontrib.autodoc_inherit_overload; python_version>='3.11'

The same applies to loading the extension in your conf.py:

extensions = [
    # your extensions
    ...
]
if sys.version_info >= (3, 11):
    extensions += ['sphinxcontrib.autodoc_inherit_overload']