two offsets or offset + size?

[rabernat]

In most of original zarr issue discussion (zarr-developers/zarr-python#556), offsets were specified with offset, size. In this spec, you are doing start, stop. It seems like offset, size will probably be slightly smaller as a text representation. I'm curious how you made that choice?

[martindurant]

I believe it was the API of the "fetch" functions littered throughout fsspec. So... mental convenience.

[manics]

I think offset, size is also less likely to cause confusion across different languages and systems. For example Python uses inclusive-exclusive ranges while HTTP partial requests are inclusive-inclusive.