Created attachment 1946650 [details]
Complete build log from scratch build on s390x

Description of problem:

On s390x, python-xbout FTBFS because two tests fail. Since the package is noarch, this means it will FTBFS occasionally whenever it happens to hit an s390x builder.

Version-Release number of selected component (if applicable): 0.3.4-2.fc38


How reproducible:


Steps to Reproduce:
1. fedpkg co python-xbout
2. cd python-xbout
3. fedpkg switch-branch rawhide
4. fedpkg scratch-build --arches s390x

Actual results:

=================================== FAILURES ===================================
_________________ TestSaveRestart.test_from_restart_to_restart _________________
self = CachingFileManager(<class 'netCDF4._netCDF4.Dataset'>, '/builddir/build/BUILD/xbout-0.3.4/xbout/tests/data/restart/BOU...r': True, 'diskless': False, 'persist': False, 'format': 'NETCDF4'}, manager_id='c94ee74d-09df-4fc5-9969-c0b1b9d0f910')
needs_lock = True
    def _acquire_with_cache_info(self, needs_lock=True):
        """Acquire a file, returning the file and whether it was cached."""
        with self._optional_lock(needs_lock):
            try:
>               file = self._cache[self._key]
/usr/lib/python3.11/site-packages/xarray/backends/file_manager.py:209: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
self = <xarray.backends.lru_cache.LRUCache object at 0x3fea23b4cc0>
key = [<class 'netCDF4._netCDF4.Dataset'>, ('/builddir/build/BUILD/xbout-0.3.4/xbout/tests/data/restart/BOUT.restart.0.nc',)...obber', True), ('diskless', False), ('format', 'NETCDF4'), ('persist', False)), 'c94ee74d-09df-4fc5-9969-c0b1b9d0f910']
    def __getitem__(self, key: K) -> V:
        # record recent use of the key by moving it to the front of the list
        with self._lock:
>           value = self._cache[key]
E           KeyError: [<class 'netCDF4._netCDF4.Dataset'>, ('/builddir/build/BUILD/xbout-0.3.4/xbout/tests/data/restart/BOUT.restart.0.nc',), 'r', (('clobber', True), ('diskless', False), ('format', 'NETCDF4'), ('persist', False)), 'c94ee74d-09df-4fc5-9969-c0b1b9d0f910']
/usr/lib/python3.11/site-packages/xarray/backends/lru_cache.py:55: KeyError
During handling of the above exception, another exception occurred:
self = <xbout.tests.test_boutdataset.TestSaveRestart object at 0x3fe9af71910>
tmp_path = PosixPath('/tmp/pytest-of-mockbuild/pytest-0/test_from_restart_to_restart0')
    def test_from_restart_to_restart(self, tmp_path):
        datapath = Path(__file__).parent.joinpath(
            "data", "restart", "BOUT.restart.*.nc"
        )
>       ds = open_boutdataset(datapath, keep_xboundaries=True, keep_yboundaries=True)
xbout/tests/test_boutdataset.py:2446: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
xbout/load.py:181: in open_boutdataset
    input_type = _check_dataset_type(datapath)
xbout/load.py:588: in _check_dataset_type
    ds = xr.open_dataset(filepaths[0], engine=filetype)
/usr/lib/python3.11/site-packages/xarray/backends/api.py:541: in open_dataset
    backend_ds = backend.open_dataset(
/usr/lib/python3.11/site-packages/xarray/backends/netCDF4_.py:578: in open_dataset
    store = NetCDF4DataStore.open(
/usr/lib/python3.11/site-packages/xarray/backends/netCDF4_.py:382: in open
    return cls(manager, group=group, mode=mode, lock=lock, autoclose=autoclose)
/usr/lib/python3.11/site-packages/xarray/backends/netCDF4_.py:329: in __init__
    self.format = self.ds.data_model
/usr/lib/python3.11/site-packages/xarray/backends/netCDF4_.py:391: in ds
    return self._acquire()
/usr/lib/python3.11/site-packages/xarray/backends/netCDF4_.py:385: in _acquire
    with self._manager.acquire_context(needs_lock) as root:
/usr/lib64/python3.11/contextlib.py:137: in __enter__
    return next(self.gen)
/usr/lib/python3.11/site-packages/xarray/backends/file_manager.py:197: in acquire_context
    file, cached = self._acquire_with_cache_info(needs_lock)
/usr/lib/python3.11/site-packages/xarray/backends/file_manager.py:215: in _acquire_with_cache_info
    file = self._opener(*self._args, **kwargs)
src/netCDF4/_netCDF4.pyx:2486: in netCDF4._netCDF4.Dataset.__init__
    ???
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
>   ???
E   AttributeError: 'NoneType' object has no attribute 'dimensions'
src/netCDF4/_netCDF4.pyx:2003: AttributeError
____________________________ TestOpen.test_restarts ____________________________
self = CachingFileManager(<class 'netCDF4._netCDF4.Dataset'>, '/builddir/build/BUILD/xbout-0.3.4/xbout/tests/data/restart/BOU...r': True, 'diskless': False, 'persist': False, 'format': 'NETCDF4'}, manager_id='950bd094-f5af-4060-a98b-71a1ce89b242')
needs_lock = True
    def _acquire_with_cache_info(self, needs_lock=True):
        """Acquire a file, returning the file and whether it was cached."""
        with self._optional_lock(needs_lock):
            try:
>               file = self._cache[self._key]
/usr/lib/python3.11/site-packages/xarray/backends/file_manager.py:209: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
self = <xarray.backends.lru_cache.LRUCache object at 0x3fea23b4cc0>
key = [<class 'netCDF4._netCDF4.Dataset'>, ('/builddir/build/BUILD/xbout-0.3.4/xbout/tests/data/restart/BOUT.restart.0.nc',)...obber', True), ('diskless', False), ('format', 'NETCDF4'), ('persist', False)), '950bd094-f5af-4060-a98b-71a1ce89b242']
    def __getitem__(self, key: K) -> V:
        # record recent use of the key by moving it to the front of the list
        with self._lock:
>           value = self._cache[key]
E           KeyError: [<class 'netCDF4._netCDF4.Dataset'>, ('/builddir/build/BUILD/xbout-0.3.4/xbout/tests/data/restart/BOUT.restart.0.nc',), 'r', (('clobber', True), ('diskless', False), ('format', 'NETCDF4'), ('persist', False)), '950bd094-f5af-4060-a98b-71a1ce89b242']
/usr/lib/python3.11/site-packages/xarray/backends/lru_cache.py:55: KeyError
During handling of the above exception, another exception occurred:
self = <xbout.tests.test_load.TestOpen object at 0x3fe9b5f0c10>
    def test_restarts(self):
        datapath = Path(__file__).parent.joinpath(
            "data", "restart", "BOUT.restart.*.nc"
        )
>       ds = open_boutdataset(datapath, keep_xboundaries=True, keep_yboundaries=True)
xbout/tests/test_load.py:1190: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
xbout/load.py:181: in open_boutdataset
    input_type = _check_dataset_type(datapath)
xbout/load.py:588: in _check_dataset_type
    ds = xr.open_dataset(filepaths[0], engine=filetype)
/usr/lib/python3.11/site-packages/xarray/backends/api.py:541: in open_dataset
    backend_ds = backend.open_dataset(
/usr/lib/python3.11/site-packages/xarray/backends/netCDF4_.py:578: in open_dataset
    store = NetCDF4DataStore.open(
/usr/lib/python3.11/site-packages/xarray/backends/netCDF4_.py:382: in open
    return cls(manager, group=group, mode=mode, lock=lock, autoclose=autoclose)
/usr/lib/python3.11/site-packages/xarray/backends/netCDF4_.py:329: in __init__
    self.format = self.ds.data_model
/usr/lib/python3.11/site-packages/xarray/backends/netCDF4_.py:391: in ds
    return self._acquire()
/usr/lib/python3.11/site-packages/xarray/backends/netCDF4_.py:385: in _acquire
    with self._manager.acquire_context(needs_lock) as root:
/usr/lib64/python3.11/contextlib.py:137: in __enter__
    return next(self.gen)
/usr/lib/python3.11/site-packages/xarray/backends/file_manager.py:197: in acquire_context
    file, cached = self._acquire_with_cache_info(needs_lock)
/usr/lib/python3.11/site-packages/xarray/backends/file_manager.py:215: in _acquire_with_cache_info
    file = self._opener(*self._args, **kwargs)
src/netCDF4/_netCDF4.pyx:2486: in netCDF4._netCDF4.Dataset.__init__
    ???
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
>   ???
E   AttributeError: 'NoneType' object has no attribute 'dimensions'
src/netCDF4/_netCDF4.pyx:2003: AttributeError
=============================== warnings summary ===============================

Expected results:

Build succeeds.

Additional info:

Perhaps it is sufficient to (1) make the base package arched, so that you can use %ifarch and the package is built on all architectures, (2) make the binary subpackage python3-xbout noarch, and (3) skip the two affected tests on s390x.