[Python-modules-team] Bug#954812: Bug#954812: pythonmagick: autopkgtest regression: cannot import name '_PythonMagick'

[Scott Kitterman]

On April 18, 2020 10:03:01 AM UTC, Adrian Bunk <bunk at debian.org> wrote:
>On Mon, Mar 23, 2020 at 09:43:19PM +0100, Paul Gevers wrote:
>> Source: pythonmagick
>> Version: 0.9.19-6
>> X-Debbugs-CC: debian-ci at lists.debian.org
>> Severity: serious
>> User: debian-ci at lists.debian.org
>> Usertags: regression
>> 
>> Dear maintainer(s),
>> 
>> With a recent upload of pythonmagick the autopkgtest of pythonmagick
>> fails in testing when that autopkgtest is run with the binary
>packages
>> of pythonmagick from unstable. It passes when run with only packages
>> from testing. In tabular form:
>> 
>>                        pass            fail
>> pythonmagick           from testing    0.9.19-6
>> versioned deps [0]     from testing    from unstable
>> 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 to testing [1].
>Can
>> you please investigate the situation and fix it?
>>...
>> Testing with python3.7:
>> + python3.7
>> Traceback (most recent call last):
>>   File "<stdin>", line 1, in <module>
>>   File "/usr/lib/python3/dist-packages/PythonMagick/__init__.py",
>line
>> 1, in <module>
>>     from . import _PythonMagick
>> ImportError: cannot import name '_PythonMagick' from 'PythonMagick'
>>...
>
>This is not a regression in the package, the root cause is:
>https://lists.debian.org/debian-release/2020/04/msg00228.html

No.  This one started to early to be caused by that issue.

In this case the issue was that the autopkgtest was run for all installed python3 versions, but the package only builds for the default version.

It's trivially fixable by making the autopkgtest run only for the default version, but it would be much better to solve it by having the package build for all supported python3 versions and running the autopkgtest against all of them.

Scott K