How_to_load_assets_in_a_python_package.md

1. Make sure the files are in the packaged version

Either put include_package_data=True in your setup.py and have a MANIFEST.in with something like

include package/models/*
include package/textures/*.png

Or in setup.py do

package_data={
    'models': ['*'],
    'textures': ['*.png']
}

Do not do both. include_package_data will override package_data.

See Also: https://stackoverflow.com/questions/11848030/how-include-static-files-to-setuptools-python-package

2. Use pkg_resources

To get the actual path of a file, use pkg_resources.resource_filename(__name__, filename).

See also: https://setuptools.readthedocs.io/en/latest/pkg_resources.html#resource-extraction