> Looks like your file system Python uses for tmp files doesn't support
> xattr. That's bad because you can't verify. How should I cope with that?
> try/catch on the first setxattr() and skip the test if it fails? Is the
> an official way to do that?

Well, apparently the extended attributes tests in test_os get skipped
with the following message: "no non-broken extended attribute support".
Perhaps you need the same condition somewhere.