Python wheels for OpenImageIO

Currently just a simple explainer on how to create a usable Python module.

Update 7/15/2025: This repository is unmaintained. There are now offical OpenImageIO Python wheels available at https://pypi.org/project/OpenImageIO/

Usage

import oiio
from oiio import ImageInput, ImageOutput
from oiio import ImageBuf, ImageSpec, ImageBufAlgo

Everything else should be the same as in the official OIIO documentation.

Windows build steps

1. Get vcpkg and run script to install.
2. Install OpenImageIO with ./vcpkg install openimageio[pybind11]:x64-windows.
3. Copy the vcpkg\installed\x64-windows\lib\python3.10\site-packages\OpenImageIO.cp310-win_amd64.pyd file to the oiio folder.
4. Copy DLLs from vcpkg\installed\x64-windows\bin to the oiio folder.
5. Rename the .pyd file to OpenImageIO.pyd.
6. (Optional) python3 -m pip install mypy then run stubgen -m OpenImageIO -o ./ to generate a .pyi stub for code completion. (Thanks, @pixel-ninja)

Releasing on PyPI

• Follow the above steps to build OpenImageIO for Python
• Navigate to the root directory
• Run py -m build
• Then run twine upload dist/* and follow the prompts.

License

Licensed under the MIT license.