Bug#1009094: keras: (autopkgtest) needs update for python3.10: cannot import name 'Iterable' from 'collections'

[Paul Gevers]

Source: keras
Version: 2.3.1+dfsg-3
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 keras 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
keras                  from testing    2.3.1+dfsg-3
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/k/keras/20649520/log.gz

Using Theano backend.
/usr/lib/python3/dist-packages/theano/configdefaults.py:560: 
UserWarning: DeprecationWarning: there is no c++ compiler.This is 
deprecated and with Theano 0.11 a c++ compiler will be mandatory
   warnings.warn("DeprecationWarning: there is no c++ compiler."
WARNING (theano.tensor.blas): Using NumPy C-API based implementation for 
BLAS functions.
Traceback (most recent call last):
   File "<string>", line 1, in <module>
   File 
"/tmp/autopkgtest-lxc.3yo9gbvc/downtmp/build.0tt/src/keras/__init__.py", 
line 3, in <module>
     from . import utils
   File 
"/tmp/autopkgtest-lxc.3yo9gbvc/downtmp/build.0tt/src/keras/utils/__init__.py", 
line 26, in <module>
     from .vis_utils import model_to_dot
   File 
"/tmp/autopkgtest-lxc.3yo9gbvc/downtmp/build.0tt/src/keras/utils/vis_utils.py", 
line 7, in <module>
     from ..models import Model
   File 
"/tmp/autopkgtest-lxc.3yo9gbvc/downtmp/build.0tt/src/keras/models.py", 
line 10, in <module>
     from .engine.input_layer import Input
   File 
"/tmp/autopkgtest-lxc.3yo9gbvc/downtmp/build.0tt/src/keras/engine/__init__.py", 
line 8, in <module>
     from .training import Model
   File 
"/tmp/autopkgtest-lxc.3yo9gbvc/downtmp/build.0tt/src/keras/engine/training.py", 
line 15, in <module>
     from . import training_arrays
   File 
"/tmp/autopkgtest-lxc.3yo9gbvc/downtmp/build.0tt/src/keras/engine/training_arrays.py", 
line 15, in <module>
     from .. import callbacks as cbks
   File 
"/tmp/autopkgtest-lxc.3yo9gbvc/downtmp/build.0tt/src/keras/callbacks/__init__.py", 
line 3, in <module>
     from .callbacks import Callback
   File 
"/tmp/autopkgtest-lxc.3yo9gbvc/downtmp/build.0tt/src/keras/callbacks/callbacks.py", 
line 19, in <module>
     from collections import Iterable
ImportError: cannot import name 'Iterable' from 'collections' 
(/usr/lib/python3.10/collections/__init__.py)
autopkgtest [09:14:23]: test python3-theano-cpu

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