Some dependent packages are only installable via conda. Additionally, conda installs its own python3.6, freeing you from that responsibility
If you don't have conda
already, install it with the miniconda installer
python poseidon.py --ref_object square --ref_object_units cm --ref_object_size 10.0 --fishery_type finfish --uuid "12345678Test" --username testRun --email "None given" --original_filename "fuu.bar" --original_size 0 --loc_code "none" --measurement_direction length --image sample_photos/finfish/288_KLPBS_315.jpg --show True --show True will pop up the results so you can see how the model(s) are operating If you see this: ModuleNotFoundError: No module named 'cv2', you need to run conda activate fastai-cpu