Otherwise xbout and zoidberg and BOUT++ (and maybe more?) cannot be tested with python 3.14
python-boutdata fails to build with Python 3.14.0a5.
_ TestCollect.test_disconnected_doublenull[2-2-collect_kwargs5-squash_params2]
_
self = <boutdata.tests.test_collect.TestCollect object at 0x7fe67a782b70>
tmp_path =
PosixPath('/tmp/pytest-of-mockbuild/pytest-0/test_disconnected_doublenull_253')
squash_params = (True, {'parallel': 2})
collect_kwargs = {'xguards': False, 'yguards': False}, mxg = 2, myg = 2
@pytest.mark.parametrize("squash_params", squash_params_list)
@pytest.mark.parametrize("collect_kwargs", collect_kwargs_list)
@pytest.mark.parametrize("mxg", [0, 1, 2])
@pytest.mark.parametrize("myg", [0, 1, 2])
def test_disconnected_doublenull(
self, tmp_path, squash_params, collect_kwargs, mxg, myg
):
"""
Check output from a disconnected double-null case using a large number
of
processes. 'Large' means there is at least one process in each region
with no
edges touching another region.
"""
squash, squash_kwargs = squash_params
grid_info = make_grid_info(
mxg=mxg, myg=myg, nxpe=3, nype=18, ixseps1=6, ixseps2=11, xpoints=2
)
fieldperp_global_yind = 19
fieldperp_yproc_ind = 4
rng = np.random.default_rng(110)
dump_params = [
# inner, lower divertor leg
(0, ["xinner", "ylower"], -1),
(1, ["ylower"], -1),
(2, ["xouter", "ylower"], -1),
(3, ["xinner"], -1),
(4, [], -1),
(5, ["xouter"], -1),
(6, ["xinner"], -1),
(7, [], -1),
(8, ["xouter"], -1),
# inner core
(9, ["xinner"], -1),
(10, [], -1),
(11, ["xouter"], -1),
(12, ["xinner"], fieldperp_global_yind),
(13, [], fieldperp_global_yind),
(14, ["xouter"], fieldperp_global_yind),
(15, ["xinner"], -1),
(16, [], -1),
(17, ["xouter"], -1),
# inner, upper divertor leg
(18, ["xinner"], -1),
(19, [], -1),
(20, ["xouter"], -1),
(21, ["xinner"], -1),
(22, [], -1),
(23, ["xouter"], -1),
(24, ["xinner", "yupper"], -1),
(25, ["yupper"], -1),
(26, ["xouter", "yupper"], -1),
# outer, upper divertor leg
(27, ["xinner", "ylower"], -1),
(28, ["ylower"], -1),
(29, ["xouter", "ylower"], -1),
(30, ["xinner"], -1),
(31, [], -1),
(32, ["xouter"], -1),
(33, ["xinner"], -1),
(34, [], -1),
(35, ["xouter"], -1),
# outer core
(36, ["xinner"], -1),
(37, [], -1),
(38, ["xouter"], -1),
(39, ["xinner"], -1),
(40, [], -1),
(41, ["xouter"], -1),
(42, ["xinner"], -1),
(43, [], -1),
(44, ["xouter"], -1),
# outer, lower divertor leg
(45, ["xinner"], -1),
(46, [], -1),
(47, ["xouter"], -1),
(48, ["xinner"], -1),
(49, [], -1),
(50, ["xouter"], -1),
(51, ["xinner", "yupper"], -1),
(52, ["yupper"], -1),
(53, ["xouter", "yupper"], -1),
]
dumps = []
for i, boundaries, fieldperp_yind in dump_params:
dumps.append(
create_dump_file(
tmpdir=tmp_path,
rng=rng,
grid_info=grid_info,
i=i,
boundaries=boundaries,
fieldperp_global_yind=fieldperp_yind,
)
)
expected = concatenate_data(
dumps, nxpe=grid_info["NXPE"],
fieldperp_yproc_ind=fieldperp_yproc_ind
)
> check_collected_data(
expected,
fieldperp_global_yind=fieldperp_global_yind,
doublenull=True,
path=tmp_path,
squash=squash,
collect_kwargs=collect_kwargs,
squash_kwargs=squash_kwargs,
)
boutdata/tests/test_collect.py:1724:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
boutdata/tests/test_collect.py:84: in check_collected_data
squashoutput(path, outputname="boutdata.nc", **collect_kwargs,
**squash_kwargs)
boutdata/squashoutput.py:153: in squashoutput
outputs = BoutOutputs(
boutdata/data.py:1175: in __init__
self._init_parallel()
boutdata/data.py:1251: in _init_parallel
worker.start()
/usr/lib64/python3.14/multiprocessing/process.py:121: in start
self._popen = self._Popen(self)
/usr/lib64/python3.14/multiprocessing/context.py:224: in _Popen
return _default_context.get_context().Process._Popen(process_obj)
/usr/lib64/python3.14/multiprocessing/context.py:300: in _Popen
return Popen(process_obj)
/usr/lib64/python3.14/multiprocessing/popen_forkserver.py:35: in __init__
super().__init__(process_obj)
/usr/lib64/python3.14/multiprocessing/popen_fork.py:20: in __init__
self._launch(process_obj)
/usr/lib64/python3.14/multiprocessing/popen_forkserver.py:47: in _launch
reduction.dump(process_obj, buf)
/usr/lib64/python3.14/multiprocessing/reduction.py:60: in dump
ForkingPickler(file, protocol).dump(obj)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> ???
E NotImplementedError: Dataset is not picklable
E when serializing dict item 'handle'
E when serializing boututils.datafile.DataFile_netCDF state
E when serializing boututils.datafile.DataFile_netCDF object
E when serializing dict item 'impl'
E when serializing boututils.datafile.DataFile state
E when serializing boututils.datafile.DataFile object
E when serializing dict item '_file0'
E when serializing boutdata.data.BoutOutputs state
E when serializing boutdata.data.BoutOutputs object
E when serializing tuple item 0
E when serializing method reconstructor arguments
E when serializing method object
E when serializing dict item '_target'
E when serializing multiprocessing.context.Process state
E when serializing multiprocessing.context.Process object
Let us know here if you have any questions.
Python 3.14 is planned to be included in Fedora 43.
To make that update smoother, we're building Fedora packages with all
pre-releases of Python 3.14.
A build failure prevents us from testing all dependent packages (transitive
[Build]Requires),
so if this package is required a lot, it's important for us to get it fixed
soon.
From: https://bugzilla.redhat.com/show_bug.cgi?id=2352553
If anybody has time to look into this, that would be great :-)
Otherwise xbout and zoidberg and BOUT++ (and maybe more?) cannot be tested with python 3.14
python-boutdata fails to build with Python 3.14.0a5.
https://docs.python.org/3.14/whatsnew/3.14.html
For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.14/fedora-rawhide-x86_64/08768201-python-boutdata/
For all our attempts to build python-boutdata with Python 3.14, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/package/python-boutdata/
Testing and mass rebuild of packages is happening in copr.
You can follow these instructions to test locally in mock if your package
builds with Python 3.14:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/
Let us know here if you have any questions.
Python 3.14 is planned to be included in Fedora 43.
To make that update smoother, we're building Fedora packages with all
pre-releases of Python 3.14.
A build failure prevents us from testing all dependent packages (transitive
[Build]Requires),
so if this package is required a lot, it's important for us to get it fixed
soon.
We'd appreciate help from the people who know this package best,
but if you don't want to work on this now, let us know so we can try to work
around it on our side.