Eryk Sun <> added the comment:

Thanks for the quick feedback and pushing back on this. We just have a broken 
mount point, unlike in Unix where it's a regular directory. so you're right to 
just query the basic info for all directory reparse points, without 
special-casing mount points.

However, I do think a valid mount point is a directory. I don't see why 
os.path.ismount() returns true for a non-existent mount point, drive letter, or 
share. Is this just to avoid network access delays with unavailable mapped 
drives and shares? Also, because of the hard-coded UNC check in ismount(), we 
aren't supporting mount points in directories on shares. I think this needs 


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