Opening a grib file leaves a .idx in the directory

What is your issue?

I don’t remember this being an issue before, but when I open a .grib2 file a .idx file remains in the directory when the script is finished running. I’m using:

with xr.open_dataset(filepath) as ds:
    ...

I’m using xarray version 0.19.0 on python version 3.8.13

[alexamici]

Should we by default use a temp file? or is there some benefit to retaining the index file locally? (asking as someone with very little context

Opening the a GRIB for the first time requires reading the whole file and saving the index to disk makes all subsequent open much faster. I took the decision to default to writing, but IMO the real issue is that it is not well documented how to switch it off 😅

[max-sixty]

Cool, if you think we should document it better (or write to a temp file by default, less surprising perhaps?), then that’s great, let’s add the issue; it doesn’t have to be you who implements.