test_loader.py

import os
from tqdm import tqdm
from datasets import load_dataset, load_dataset_builder, load_from_disk

if os.getlogin() == "jordy": #local testing
    DATASET = "/home/jordy/code/opensource/Beyond-Document-Page-Classification/src/tests/rvl_cdip_multi/rvl_cdip_multi.py"
    stepwise = True
else:
    DATASET = "jordyvl/rvl_cdip_multi"
    stepwise = False



if stepwise:
    ds = load_dataset(DATASET, cache_dir="/mnt/lerna/data/HFcache")
    import pdb; pdb.set_trace()  # breakpoint 1898e7e0 //
    
    builder = load_dataset_builder(DATASET)
    ds = builder.download_and_prepare()
    ds = builder.as_dataset(split='test')


ds = load_dataset("jordyvl/rvl_cdip_multi", cache_dir="/mnt/lerna/data/HFcache")
#streaming=True, num_proc=8
#stream it

#count pages 
counter = []
for i, d in tqdm(enumerate(ds["test"])):
    counter.append(len(d["file"]))
print(sum(counter)/len(counter))