Python scripts to generate exr test files. Imageio & pyexr.
The test file is a yellow gradient from left to right (yellow to black). Imageio outputs a HALF (16 bit float) EXR file, while Pyexr output by default a 32 bit EXR file.
To test pyexr, run test_pyexr.py
To test pyexr, run test_imageio_exr.py
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You'll need perhaps to install some imageio binaries: https://imageio.readthedocs.io/en/latest/format_exr-fi.html#exr-fi