How to use S3 path with `load_dataset` with streaming=True?

🤗Datasets
2

Maybe a related feature request/question:

Can load_dataset support _io.TextIOWrapper types instead of file paths?

Currently, filepath is supported:

infile = "../input/tatoeba/tatoeba-sentpairs.tsv" 
train_data = load_dataset("csv", data_files=infile, 
                  streaming=True, delimiter="\t", split="train")

but sometimes, it’s very useful if we can do something like:

infile = open("../input/tatoeba/tatoeba-sentpairs.tsv")  # -> _io.TextIOWrapper
train_data = load_dataset("csv", data_files=infile, 
                  streaming=True, delimiter="\t", split="train")

If we can do the latter, then maybe we can pipe/stream through s3 like this:

from datasets.filesystem import S3FileSystem

s3 = S3FileSystem()

infile = s3.open("../input/tatoeba/tatoeba-sentpairs.tsv") # -> _io.TextIOWrapper
train_data = load_dataset("csv", data_files=infile, 
                  streaming=True, delimiter="\t", split="train")