[Debian-med-packaging] Bug#1009110: pysurfer: (autopkgtest) needs update for python3.10: cannot import name 'Sequence' from 'collections'

[Paul Gevers]

Source: pysurfer
Version: 0.11.0-2
Severity: serious
Tags: sid bookworm
User: debian-ci at lists.debian.org
Usertags: needs-update
User: debian-python at lists.debian.org
Usertags: python3.10
Control: affects -1 src:python3-defaults

Dear maintainer(s),

We are in the transition of making python3.10 the default Python 
versions [0]. With a recent upload of python3-defaults the autopkgtest 
of pysurfer fails in testing when that autopkgtest is run with the 
binary packages of python3-defaults from unstable. It passes when run 
with only packages from testing. In tabular form:

                        pass            fail
python3-defaults       from testing    3.10.4-1
pysurfer               from testing    0.11.0-2
all others             from testing    from testing

I copied some of the output at the bottom of this report.

Currently this regression is blocking the migration of python3-defaults 
to testing [1]. https://docs.python.org/3/whatsnew/3.10.html lists 
what's new in Python3.10, it may help to identify what needs to be 
updated. https://docs.python.org/3.9/library/collections.html says:
"""
Deprecated since version 3.3, will be removed in version 3.10: Moved 
Collections Abstract Base Classes to the collections.abc module. For 
backwards compatibility, they continue to be visible in this module 
through Python 3.9.
"""
Time to move on.

More information about this bug and the reason for filing it can be found on
https://wiki.debian.org/ContinuousIntegration/RegressionEmailInformation

Paul

[0] https://bugs.debian.org/1006836
[1] https://qa.debian.org/excuses.php?package=python3-defaults

https://ci.debian.net/data/autopkgtest/testing/amd64/p/pysurfer/20663038/log.gz

============================= test session starts 
==============================
platform linux -- Python 3.10.4, pytest-6.2.5, py-1.10.0, pluggy-1.0.0 
-- /usr/bin/python3
cachedir: .pytest_cache
rootdir: /tmp/autopkgtest-lxc.v2wopsdx/downtmp/autopkgtest_tmp
collecting ... collected 0 items / 2 errors

==================================== ERRORS 
====================================
_____________________ ERROR collecting tests/test_utils.py 
_____________________
ImportError while importing test module 
'/tmp/autopkgtest-lxc.v2wopsdx/downtmp/autopkgtest_tmp/tests/test_utils.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.10/importlib/__init__.py:126: in import_module
     return _bootstrap._gcd_import(name[level:], package, level)
tests/test_utils.py:9: in <module>
     from surfer import utils
/usr/lib/python3/dist-packages/surfer/__init__.py:1: in <module>
     from .viz import Brain, TimeViewer  # noqa
/usr/lib/python3/dist-packages/surfer/viz.py:25: in <module>
     from . import utils, io
/usr/lib/python3/dist-packages/surfer/utils.py:1: in <module>
     from collections import Sequence
E   ImportError: cannot import name 'Sequence' from 'collections' 
(/usr/lib/python3.10/collections/__init__.py)
______________________ ERROR collecting tests/test_viz.py 
______________________
ImportError while importing test module 
'/tmp/autopkgtest-lxc.v2wopsdx/downtmp/autopkgtest_tmp/tests/test_viz.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.10/importlib/__init__.py:126: in import_module
     return _bootstrap._gcd_import(name[level:], package, level)
tests/test_viz.py:15: in <module>
     from surfer import Brain, io, utils
/usr/lib/python3/dist-packages/surfer/__init__.py:1: in <module>
     from .viz import Brain, TimeViewer  # noqa
/usr/lib/python3/dist-packages/surfer/viz.py:25: in <module>
     from . import utils, io
/usr/lib/python3/dist-packages/surfer/utils.py:1: in <module>
     from collections import Sequence
E   ImportError: cannot import name 'Sequence' from 'collections' 
(/usr/lib/python3.10/collections/__init__.py)
=============================== warnings summary 
===============================
tests/test_utils.py:1
 
/tmp/autopkgtest-lxc.v2wopsdx/downtmp/autopkgtest_tmp/tests/test_utils.py:1: 
DeprecationWarning: The distutils package is deprecated and slated for 
removal in Python 3.12. Use setuptools or check PEP 632 for potential 
alternatives
     from distutils.version import LooseVersion

../../../../usr/lib/python3/dist-packages/traitsui/table_column.py:461
   /usr/lib/python3/dist-packages/traitsui/table_column.py:461: 
DeprecationWarning: In the future, a default value of type 'dict' in an 
Any trait will be shared between all instances. To keep the current 
semantics, replace `Any({})` with `Any(factory=dict)` or `Any({1: 2})` 
(for example) with `Any(factory=dict, args=({1: 2},))`.
     globals = Any({})

../../../../usr/lib/python3/dist-packages/traitsui/tabular_adapter.py:220
   /usr/lib/python3/dist-packages/traitsui/tabular_adapter.py:220: 
DeprecationWarning: In the future, a default value of type 'dict' in an 
Any trait will be shared between all instances. To keep the current 
semantics, replace `Any({})` with `Any(factory=dict)` or `Any({1: 2})` 
(for example) with `Any(factory=dict, args=({1: 2},))`.
     cache = Any({})

-- Docs: https://docs.pytest.org/en/stable/warnings.html
=========================== short test summary info 
============================
ERROR tests/test_utils.py
ERROR tests/test_viz.py
!!!!!!!!!!!!!!!!!!! Interrupted: 2 errors during collection 
!!!!!!!!!!!!!!!!!!!!
======================== 3 warnings, 2 errors in 4.03s 
=========================
autopkgtest [17:27:39]: test command1

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