Your message dated Thu, 27 Aug 2026 18:20:17 +0000
with message-id <[email protected]>
and subject line Bug#1145452: fixed in kerchunk 0.2.10-2
has caused the Debian Bug report #1145452,
regarding kerchunk: FTBFS: E ValueError: Chunk size must be
positive, got 0
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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immediately.)
--
1145452: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1145452
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: src:kerchunk
Version: 0.2.10-1
Severity: serious
Tags: ftbfs forky sid
Dear maintainer:
During a rebuild of all packages in unstable, this package failed to build.
Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:
https://people.debian.org/~sanvila/build-logs/202608/
About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.
If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.
If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:kerchunk, so that this is still
visible in the BTS web page for this package.
Thanks.
--------------------------------------------------------------------------------
[...]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <AsyncGroup <FsspecStore(ReferenceFileSystem, /)>>, key = 'FP_line'
async def getitem(
self,
key: str,
) -> AnyAsyncArray | AsyncGroup:
"""
Get a subarray or subgroup from the group.
Parameters
----------
key : str
Array or group name
Returns
-------
AsyncArray or AsyncGroup
"""
store_path = self.store_path / key
logger.debug("key=%s, store_path=%s", key, store_path)
# Consolidated metadata lets us avoid some I/O operations so try that
first.
if self.metadata.consolidated_metadata is not None:
return self._getitem_consolidated(store_path, key, prefix=self.name)
try:
return await get_node(
store=store_path.store, path=store_path.path,
zarr_format=self.metadata.zarr_format
)
except FileNotFoundError as e:
> raise KeyError(key) from e
E KeyError: 'FP_line'
/usr/lib/python3/dist-packages/zarr/core/group.py:737: KeyError
During handling of the above exception, another exception occurred:
def test1():
here = os.path.dirname(__file__)
fn = os.path.join(here, "MOD14.hdf4")
> out = kerchunk.hdf4.HDF4ToZarr(fn).translate()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
../../../tests/test_hdf4.py:13:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
kerchunk/hdf4.py:149: in translate
arr = g.require_array(
/usr/lib/python3/dist-packages/zarr/core/group.py:2823: in require_array
return Array(self._sync(self._async_group.require_array(name, shape=shape,
**kwargs)))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/usr/lib/python3/dist-packages/zarr/core/sync.py:199: in _sync
return sync(
/usr/lib/python3/dist-packages/zarr/core/sync.py:154: in sync
raise return_result
/usr/lib/python3/dist-packages/zarr/core/sync.py:114: in _runner
return await coro
^^^^^^^^^^
/usr/lib/python3/dist-packages/zarr/core/group.py:1268: in require_array
ds = await self.create_array(name, shape=shape, dtype=dtype, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/usr/lib/python3/dist-packages/zarr/core/group.py:1199: in create_array
return await create_array(
/usr/lib/python3/dist-packages/zarr/core/array.py:4743: in create_array
return await init_array(
/usr/lib/python3/dist-packages/zarr/core/array.py:4476: in init_array
chunks_normalized = normalize_chunks_nd(chunks, shape_parsed)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/usr/lib/python3/dist-packages/zarr/core/chunk_grids.py:800: in
normalize_chunks_nd
tuple(normalize_chunks_1d(c, span=s) for c, s in zip(chunks, shape,
strict=True))
^^^^^
/usr/lib/python3/dist-packages/zarr/core/chunk_grids.py:800: in <genexpr>
tuple(normalize_chunks_1d(c, span=s) for c, s in zip(chunks, shape,
strict=True))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
chunks = 0, span = 0
def normalize_chunks_1d(
chunks: int | Iterable[object], span: int
) -> np.ndarray[tuple[int], np.dtype[np.int64]]:
"""
Normalize a one-dimensional chunk specification into a 1D int64 array of
chunk sizes that cover the span.
`-1` means "one chunk covering the entire span."
For an integer chunk size, all chunks are uniform â the last chunk may
overhang the span. The actual data extent of each chunk is determined
by the chunk grid at runtime, not by this function.
"""
if chunks == -1:
return np.array([span], dtype=np.int64)
if isinstance(chunks, int):
if chunks <= 0:
> raise ValueError(f"Chunk size must be positive, got {chunks}")
E ValueError: Chunk size must be positive, got 0
/usr/lib/python3/dist-packages/zarr/core/chunk_grids.py:736: ValueError
=============================== warnings summary ===============================
../../../../../../usr/lib/python3/dist-packages/_pytest/config/__init__.py:1464
/usr/lib/python3/dist-packages/_pytest/config/__init__.py:1464:
PytestConfigWarning: Unknown config option: asyncio_default_fixture_loop_scope
self._warn_or_fail_if_strict(f"Unknown config option: {key}\n")
../../../tests/test_fits.py:18
/<<PKGBUILDDIR>>/tests/test_fits.py:18: PytestUnknownMarkWarning: Unknown
pytest.mark.remotedata - is this a typo? You can register custom marks to
avoid this warning - for details, see
https://docs.pytest.org/en/stable/how-to/mark.html
@pytest.mark.remotedata
../../../tests/test_fits.py:43
/<<PKGBUILDDIR>>/tests/test_fits.py:43: PytestUnknownMarkWarning: Unknown
pytest.mark.remotedata - is this a typo? You can register custom marks to
avoid this warning - for details, see
https://docs.pytest.org/en/stable/how-to/mark.html
@pytest.mark.remotedata
../../../tests/test_grib.py:57
/<<PKGBUILDDIR>>/tests/test_grib.py:57: PytestUnknownMarkWarning: Unknown
pytest.mark.remotedata - is this a typo? You can register custom marks to
avoid this warning - for details, see
https://docs.pytest.org/en/stable/how-to/mark.html
@pytest.mark.remotedata
../../../tests/test_grib.py:287
/<<PKGBUILDDIR>>/tests/test_grib.py:287: PytestUnknownMarkWarning: Unknown
pytest.mark.remotedata - is this a typo? You can register custom marks to
avoid this warning - for details, see
https://docs.pytest.org/en/stable/how-to/mark.html
@pytest.mark.remotedata
../../../tests/test_grib.py:305
/<<PKGBUILDDIR>>/tests/test_grib.py:305: PytestUnknownMarkWarning: Unknown
pytest.mark.remotedata - is this a typo? You can register custom marks to
avoid this warning - for details, see
https://docs.pytest.org/en/stable/how-to/mark.html
@pytest.mark.remotedata
../../../../../../usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/__init__.py:36
/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/__init__.py:36:
UserWarning: h5py is running against HDF5 2.2.0 when it was built against
2.1.0, this may cause problems
_warn(("h5py is running against HDF5 {0} when it was built against {1}, "
../../../tests/test_hdf.py:24
/<<PKGBUILDDIR>>/tests/test_hdf.py:24: PytestUnknownMarkWarning: Unknown
pytest.mark.remotedata - is this a typo? You can register custom marks to
avoid this warning - for details, see
https://docs.pytest.org/en/stable/how-to/mark.html
@pytest.mark.remotedata
../../../tests/test_hdf.py:45
/<<PKGBUILDDIR>>/tests/test_hdf.py:45: PytestUnknownMarkWarning: Unknown
pytest.mark.remotedata - is this a typo? You can register custom marks to
avoid this warning - for details, see
https://docs.pytest.org/en/stable/how-to/mark.html
@pytest.mark.remotedata
../../../tests/test_hdf.py:87
/<<PKGBUILDDIR>>/tests/test_hdf.py:87: PytestUnknownMarkWarning: Unknown
pytest.mark.remotedata - is this a typo? You can register custom marks to
avoid this warning - for details, see
https://docs.pytest.org/en/stable/how-to/mark.html
@pytest.mark.remotedata
tests/test_combine.py::test_fixture
/<<PKGBUILDDIR>>/tests/test_combine.py:251: ZarrUserWarning: fs
(<fsspec.implementations.reference.ReferenceFileSystem object at
0x7f5803158cd0>) was not created with `asynchronous=True`, this may lead to
surprising behavior
store = zarr.storage.FsspecStore(fs)
tests/test_combine.py::test_fixture
/usr/lib/python3/dist-packages/zarr/storage/_fsspec.py:258: ZarrUserWarning:
fs (<fsspec.implementations.reference.ReferenceFileSystem object at
0x7f5803158cd0>) was not created with `asynchronous=True`, this may lead to
surprising behavior
return type(self)(
tests/test_combine.py::test_chunk_error
/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_kerchunk/build/kerchunk/combine.py:403:
UserWarning: Concatenated coordinate 'time' contains less than expectednumber
of values across the datasets: [1]
warnings.warn(
tests/test_grib.py::test_grib_tree
/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_kerchunk/build/kerchunk/combine.py:403:
UserWarning: Concatenated coordinate 'time' contains less than expectednumber
of values across the datasets: [1665709200]
warnings.warn(
tests/test_grib.py::test_grib_tree
/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_kerchunk/build/kerchunk/combine.py:403:
UserWarning: Concatenated coordinate 'step' contains less than expectednumber
of values across the datasets: [0.25]
warnings.warn(
tests/test_grib.py::test_hrrr_subhf_corrected_grib_tree
tests/test_grib.py::test_hrrr_sfcf_grib_tree
/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_kerchunk/build/kerchunk/combine.py:403:
UserWarning: Concatenated coordinate 'time' contains less than expectednumber
of values across the datasets: [1695862800]
warnings.warn(
-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
=========================== short test summary info ============================
FAILED ../../../tests/test_hdf4.py::test1 - ValueError: Chunk size must be po...
===== 1 failed, 81 passed, 7 skipped, 22 deselected, 17 warnings in 6.16s ======
E: pybuild pybuild:485: test: plugin pyproject failed with: exit code=1: cd
/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_kerchunk/build; python3.14 -m pytest -v
-m "not remotedata" -k "not test_single_append_parquet and not
test_zarr_combine and not test_string_null and not test_string_decode and not
test_compound_string_null and not test_compound_string_encode and not test_var
and not test_malicious_chunks" /<<PKGBUILDDIR>>/tests
dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p "3.13
3.14" --parallel=2 returned exit code 13
make: *** [debian/rules:24: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit
status 2
--------------------------------------------------------------------------------
--- End Message ---
--- Begin Message ---
Source: kerchunk
Source-Version: 0.2.10-2
Done: Antonio Valentino <[email protected]>
We believe that the bug you reported is fixed in the latest version of
kerchunk, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Antonio Valentino <[email protected]> (supplier of updated kerchunk
package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Thu, 27 Aug 2026 17:06:02 +0000
Source: kerchunk
Architecture: source
Version: 0.2.10-2
Distribution: unstable
Urgency: medium
Maintainer: Debian GIS Project <[email protected]>
Changed-By: Antonio Valentino <[email protected]>
Closes: 1145452
Changes:
kerchunk (0.2.10-2) unstable; urgency=medium
.
* debian/patches:
- New 0003-zarr-v3.3.x-compat.patch (Closes: #1145452).
* Add d/python3-kerchunk.lintian-overrides.
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Files:
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