Bug#1146006: marked as done (ont-fast5-api: FTBFS: ERROR: test_read_vbz_using_api (test.test_compress_fast5.TestVbzReadWrite.test_read_vbz_using_api))

Tue, 20 Oct 2026 02:07:18 -0700 

Your message dated Tue, 20 Oct 2026 09:04:51 +0000
with message-id <[email protected]>
and subject line Bug#1146006: fixed in ont-fast5-api 4.1.3+dfsg-6
has caused the Debian Bug report #1146006,
regarding ont-fast5-api: FTBFS: ERROR: test_read_vbz_using_api 
(test.test_compress_fast5.TestVbzReadWrite.test_read_vbz_using_api)
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
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)


-- 
1146006: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1146006
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message --- 
Package: src:ont-fast5-api
Version: 4.1.3+dfsg-5
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:ont-fast5-api, so that this is still
visible in the BTS web page for this package.

Thanks.

--------------------------------------------------------------------------------
[...]
======================================================================
ERROR: test_read_vbz_using_api 
(test.test_compress_fast5.TestVbzReadWrite.test_read_vbz_using_api)
----------------------------------------------------------------------
Traceback (most recent call last):
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/test/test_compress_fast5.py",
 line 39, in test_read_vbz_using_api
    raw_data = read.get_raw_data()
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 161, in get_raw_data
    return self._load_raw(self.raw_dataset_name, start, end, scale)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 529, in _load_raw
    raise_missing_vbz_error_write(err)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 527, in _load_raw
    raw = self.handle[dataset_name][start:end]
          ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
871, in __getitem__
    return self._fast_reader.read(args)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_selector.pyx", line 393, in 
h5py._debian_h5py_serial._selector.Reader.read
OSError: Can't synchronously read data (filter returned failure during read)

======================================================================
ERROR: test_write_vbz_using_api 
(test.test_compress_fast5.TestVbzReadWrite.test_write_vbz_using_api)
----------------------------------------------------------------------
Traceback (most recent call last):
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/test/test_compress_fast5.py",
 line 50, in test_write_vbz_using_api
    raw = read.get_raw_data()
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 161, in get_raw_data
    return self._load_raw(self.raw_dataset_name, start, end, scale)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 529, in _load_raw
    raise_missing_vbz_error_write(err)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 527, in _load_raw
    raw = self.handle[dataset_name][start:end]
          ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
871, in __getitem__
    return self._fast_reader.read(args)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_selector.pyx", line 393, in 
h5py._debian_h5py_serial._selector.Reader.read
OSError: Can't synchronously read data (buffer size is too small after filter 
callback)

======================================================================
ERROR: test_write_vbz_using_api_single_read 
(test.test_compress_fast5.TestVbzReadWrite.test_write_vbz_using_api_single_read)
----------------------------------------------------------------------
Traceback (most recent call last):
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/test/test_compress_fast5.py",
 line 67, in test_write_vbz_using_api_single_read
    raw = fast5.get_raw_data()
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_file.py",
 line 102, in get_raw_data
    return self._load_raw(self.raw_dataset_name, start, end, scale)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 529, in _load_raw
    raise_missing_vbz_error_write(err)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 527, in _load_raw
    raw = self.handle[dataset_name][start:end]
          ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
871, in __getitem__
    return self._fast_reader.read(args)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_selector.pyx", line 393, in 
h5py._debian_h5py_serial._selector.Reader.read
OSError: Can't synchronously read data (buffer size is too small after filter 
callback)

======================================================================
ERROR: test_real_example_file 
(test.test_data_sanitisation.TestDataSanitisation.test_real_example_file)
----------------------------------------------------------------------
Traceback (most recent call last):
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/test/test_data_sanitisation.py",
 line 101, in test_real_example_file
    self.assertEqual(dtype('|S1'), actual_data[field].dtype)
                                   ~~~~~~~~~~~^^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
890, in __getitem__
    return self.fields(names, _prior_dtype=new_dtype)[args]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
330, in __getitem__
    data = self._dset.__getitem__(idx, new_dtype=self.read_dtype)
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
954, in __getitem__
    self.id.read(mspace, fspace, arr, mtype, dxpl=self._dxpl)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/h5d.pyx", line 260, in 
h5py._debian_h5py_serial.h5d.DatasetID.read
  File "h5py/_debian_h5py_serial/_proxy.pyx", line 120, in 
h5py._debian_h5py_serial._proxy.dset_rw
OSError: Can't synchronously read data (chunk size is incorrect after being 
unfiltered)

======================================================================
ERROR: test_create_read 
(test.test_hardlink_metadata.TestHardlinkMetaData.test_create_read)
----------------------------------------------------------------------
Traceback (most recent call last):
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/test/test_hardlink_metadata.py",
 line 22, in test_create_read
    compress_file(input_path, output_path, target_compression=VBZ)
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/conversion_tools/compress_fast5.py",
 line 59, in compress_file
    output_f5.add_existing_read(read, target_compression, sanitize=sanitize)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/multi_fast5.py",
 line 82, in add_existing_read
    self._add_read_from_multi(read_to_add, target_compression, 
sanitize=sanitize)
    
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/multi_fast5.py",
 line 102, in _add_read_from_multi
    output_read.add_raw_data(raw_data, raw_attrs, 
compression=target_compression)
    
~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 106, in add_raw_data
    self.handle[self.raw_dataset_group_name].create_dataset('Signal', 
data=data, dtype='i2',
    
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                                            **vars(compression))
                                                            ^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/group.py", 
line 240, in create_dataset
    dsid = dataset.make_new_dset(group, shape, dtype, data, name, **kwds)
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
50, in make_new_dset
    data = array_for_new_object(data, specified_dtype=dtype)
  File "/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/base.py", 
line 121, in array_for_new_object
    data = np.asarray(data, order="C", dtype=as_dtype)
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
1178, in __array__
    self.read_direct(arr)
    ~~~~~~~~~~~~~~~~^^^^^
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
1134, in read_direct
    self.id.read(mspace, fspace, dest, dxpl=self._dxpl)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/h5d.pyx", line 260, in 
h5py._debian_h5py_serial.h5d.DatasetID.read
  File "h5py/_debian_h5py_serial/_proxy.pyx", line 120, in 
h5py._debian_h5py_serial._proxy.dset_rw
OSError: Can't synchronously read data (filter returned failure during read)

======================================================================
ERROR: test_hardlink_multi_compression 
(test.test_hardlink_metadata.TestHardlinkMetaData.test_hardlink_multi_compression)
----------------------------------------------------------------------
Traceback (most recent call last):
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/test/test_hardlink_metadata.py",
 line 40, in test_hardlink_multi_compression
    compress_file(input_path, output_path, target_compression=VBZ)
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/conversion_tools/compress_fast5.py",
 line 59, in compress_file
    output_f5.add_existing_read(read, target_compression, sanitize=sanitize)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/multi_fast5.py",
 line 82, in add_existing_read
    self._add_read_from_multi(read_to_add, target_compression, 
sanitize=sanitize)
    
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/multi_fast5.py",
 line 102, in _add_read_from_multi
    output_read.add_raw_data(raw_data, raw_attrs, 
compression=target_compression)
    
~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 106, in add_raw_data
    self.handle[self.raw_dataset_group_name].create_dataset('Signal', 
data=data, dtype='i2',
    
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                                            **vars(compression))
                                                            ^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/group.py", 
line 240, in create_dataset
    dsid = dataset.make_new_dset(group, shape, dtype, data, name, **kwds)
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
50, in make_new_dset
    data = array_for_new_object(data, specified_dtype=dtype)
  File "/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/base.py", 
line 121, in array_for_new_object
    data = np.asarray(data, order="C", dtype=as_dtype)
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
1178, in __array__
    self.read_direct(arr)
    ~~~~~~~~~~~~~~~~^^^^^
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
1134, in read_direct
    self.id.read(mspace, fspace, dest, dxpl=self._dxpl)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/h5d.pyx", line 260, in 
h5py._debian_h5py_serial.h5d.DatasetID.read
  File "h5py/_debian_h5py_serial/_proxy.pyx", line 120, in 
h5py._debian_h5py_serial._proxy.dset_rw
OSError: Can't synchronously read data (filter returned failure during read)

======================================================================
ERROR: test_raw_data (test.test_multi_fast5.TestMultiFast5.test_raw_data)
----------------------------------------------------------------------
Traceback (most recent call last):
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/test/test_multi_fast5.py",
 line 59, in test_raw_data
    output_data = read0.get_raw_data()
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 161, in get_raw_data
    return self._load_raw(self.raw_dataset_name, start, end, scale)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 529, in _load_raw
    raise_missing_vbz_error_write(err)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 527, in _load_raw
    raw = self.handle[dataset_name][start:end]
          ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
871, in __getitem__
    return self._fast_reader.read(args)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_selector.pyx", line 393, in 
h5py._debian_h5py_serial._selector.Reader.read
OSError: Can't synchronously read data (buffer size is too small after filter 
callback)

======================================================================
ERROR: test_001_raw_only 
(test.test_segmentation_tools.TestSegmentationTools.test_001_raw_only)
----------------------------------------------------------------------
Traceback (most recent call last):
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/test/test_segmentation_tools.py",
 line 41, in test_001_raw_only
    temp_raw = segment.get_raw_data('template', scale=False)
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/analysis_tools/segmentation.py",
 line 131, in get_raw_data
    datasets[n] = self.handle.get_raw_data(start=start, end=start+dur, 
scale=scale)
                  
~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_file.py",
 line 102, in get_raw_data
    return self._load_raw(self.raw_dataset_name, start, end, scale)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 529, in _load_raw
    raise_missing_vbz_error_write(err)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
  File 
"/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build/ont_fast5_api/fast5_read.py",
 line 527, in _load_raw
    raw = self.handle[dataset_name][start:end]
          ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File 
"/usr/lib/python3/dist-packages/h5py/_debian_h5py_serial/_hl/dataset.py", line 
871, in __getitem__
    return self._fast_reader.read(args)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "h5py/_debian_h5py_serial/_objects.pyx", line 54, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_objects.pyx", line 55, in 
h5py._debian_h5py_serial._objects.with_phil.wrapper
  File "h5py/_debian_h5py_serial/_selector.pyx", line 393, in 
h5py._debian_h5py_serial._selector.Reader.read
OSError: Can't synchronously read data (filter returned failure during read)

----------------------------------------------------------------------
Ran 76 tests in 1.499s

FAILED (errors=8, skipped=5)
E: pybuild pybuild:485: test: plugin distutils failed with: exit code=1: cd 
/<<PKGBUILDDIR>>/.pybuild/cpython3_3.14_ont_fast5_api/build; python3.14 -m 
unittest discover -v 
dh_auto_test: error: pybuild --test -i python{version} -p 3.14 --parallel=2 
returned exit code 13
make: *** [debian/rules:8: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit 
status 2
--------------------------------------------------------------------------------

--- End Message ---
--- Begin Message --- 
Source: ont-fast5-api
Source-Version: 4.1.3+dfsg-6
Done: Andreas Tille <[email protected]>

We believe that the bug you reported is fixed in the latest version of
ont-fast5-api, 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.
Andreas Tille <[email protected]> (supplier of updated ont-fast5-api package)

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Format: 1.8
Date: Tue, 20 Oct 2026 10:47:10 +0200
Source: ont-fast5-api
Architecture: source
Version: 4.1.3+dfsg-6
Distribution: unstable
Urgency: medium
Maintainer: Debian Med Packaging Team 
<[email protected]>
Changed-By: Andreas Tille <[email protected]>
Closes: 1146006
Changes:
 ont-fast5-api (4.1.3+dfsg-6) unstable; urgency=medium
 .
   * d/watch: simplify
   * cme fix dpkg-control
   * Versioned Build-Depends: libvbz-hdf-plugin-dev (>= 1.0.13-2~)
   * Tolerate unreadable legacy chunk layout with HDF5 2.2.0
     Closes: #1146006 (LP: 2168435)
   * d/rules: pass an explicit --destdir to dh_auto_install, which is
     needed with debhelper compat 14, and do not ship the test suite.
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ont-fast5-api_4.1.3+dfsg-6.debian.tar.xz
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Files:
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ont-fast5-api_4.1.3+dfsg-6.dsc
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ont-fast5-api_4.1.3+dfsg-6.debian.tar.xz
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ont-fast5-api_4.1.3+dfsg-6_amd64.buildinfo

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