[Libguestfs] Re: [PATCH nbdkit] tests: gcs: skip tests without google cloud module

On 2024-04-28 17:34:42+0000, Richard W.M. Jones wrote:

[..]

> It should run without any google.* modules installed, and also if any > combination of google.* modules are installed. In all cases it ought > to load the mocked module from tests/test-gcs and ignore the installed > google.* modules, or if it can't do that (see my commit message above) > it should skip the test. > > For me, that all works. I missed the tests/test-gcs/google/api_core directory. > However I found last week that there's something seriously weird about > the google.* modules (not to mention Python module loading in > general), so I can believe the test might not work in some > combination. > > Nevertheless, the commit as proposed is definitely wrong. The gcs > test does not (or should not) use any installed google.* module, so if > it does then that's a bug of some kind. Agree. I narrowed it down to python-protobuf being installed. It creates /usr/lib/python3.12/site-packages/google . I think this should be a namespace package, which is handled specially, But I'm not sure if the problem is in python-protobuf, the Python import machinery or the setup by test nbdkit testsuite. Will investigate.