AllianceCan clusters have openslide available as a loadable module, but openslide-python cannot normally resolve it, throwing an error like:
ModuleNotFoundError: Couldn't locate OpenSlide shared library. Try `pip install openslide-bin`. https://openslide.org/api/python/#installing
To fix this, you need to help the linker resolve the library. To do so, load the module:
module load openslide