[Python-modules-team] Bug#909690: pylint breaks pylint-django autopkgtest

[Paul Gevers]

Source: pylint, pylint-django
Control: found -1 pylint/2.1.1-1
Control: found -1 pylint-django/0.11-1
X-Debbugs-CC: debian-ci at lists.debian.org
User: debian-ci at lists.debian.org
Usertags: breaks needs-update

Dear maintainers,

With a recent upload of pylint the autopkgtest of pylint-django fails in
testing when that autopkgtest is run with the binary packages of pylint
from unstable. It passes when run with only packages from testing. In
tabular form:
                       pass            fail
pylint                 from testing    2.1.1-1
pylint-django          from testing    0.11-1
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. Because of the
versioned deps that need installing, it is possible that that triggers
the failure. I have scheduled a test with only astroid from unstable.

Currently this regression is contributing to the delay of the migration
of pylint to testing [1]. Due to the nature of this issue, I filed this
bug report against both packages. Can you please investigate the
situation and reassign the bug to the right package? If needed, please
change the bug's severity.

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

Paul

[0] You can see what packages were added from the second line of the log
file quoted below. The migration software adds source package from
unstable to the list if they are needed to install packages from
pylint/2.1.1-1. I.e. due to versioned dependencies or breaks/conflicts.
In this case it added src:astroid.
[1] https://qa.debian.org/excuses.php?package=pylint

https://ci.debian.net/data/autopkgtest/testing/amd64/p/pylint-django/1055531/log.gz

autopkgtest [05:25:38]: test unit-tests-p3: [-----------------------
Traceback (most recent call last):
  File
"/usr/lib/python3/dist-packages/pylint_django/tests/test_func.py", line
9, in <module>
    import test_functional  # noqa: E402
ModuleNotFoundError: No module named 'test_functional'
autopkgtest [05:25:38]: test unit-tests-p3: -----------------------]


autopkgtest [05:26:16]: test django-sample: [-----------------------
Running “django-admin startproject testproject”
Running “django-admin startapp testapp”
Running “pylint3 --version”
pylint3 2.1.1
astroid 2.0.4
Python 3.6.6 (default, Jun 27 2018, 14:44:17)
[GCC 8.1.0]
Running “pylint3 -E --load-plugins=pylint_django testapp/”
Traceback (most recent call last):
  File "/usr/bin/pylint3", line 11, in <module>
    load_entry_point('pylint==2.1.1', 'console_scripts', 'pylint')()
  File "/usr/lib/python3/dist-packages/pylint/__init__.py", line 19, in
run_pylint
    Run(sys.argv[1:])
  File "/usr/lib/python3/dist-packages/pylint/lint.py", line 1315, in
__init__
    linter.load_plugin_modules(self._plugins)
  File "/usr/lib/python3/dist-packages/pylint/lint.py", line 519, in
load_plugin_modules
    module = modutils.load_module_from_name(modname)
  File "/usr/lib/python3/dist-packages/astroid/modutils.py", line 196,
in load_module_from_name
    return load_module_from_modpath(dotted_name.split('.'), path, use_sys)
  File "/usr/lib/python3/dist-packages/astroid/modutils.py", line 239,
in load_module_from_modpath
    module = imp.load_module(curname, mp_file, mp_filename, mp_desc)
  File "/usr/lib/python3.6/imp.py", line 245, in load_module
    return load_package(name, filename)
  File "/usr/lib/python3.6/imp.py", line 217, in load_package
    return _load(spec)
  File "<frozen importlib._bootstrap>", line 684, in _load
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in
_call_with_frames_removed
  File "/usr/lib/python3/dist-packages/pylint_django/__init__.py", line
7, in <module>
    from pylint_django import plugin
  File "/usr/lib/python3/dist-packages/pylint_django/plugin.py", line 9,
in <module>
    from pylint_django import transforms  # noqa, pylint:
disable=unused-import
  File
"/usr/lib/python3/dist-packages/pylint_django/transforms/__init__.py",
line 12, in <module>
    foreignkey.add_transform(MANAGER)
  File
"/usr/lib/python3/dist-packages/pylint_django/transforms/foreignkey.py",
line 59, in add_transform
    manager.register_transform(nodes.CallFunc,
inference_tip(infer_key_classes),
AttributeError: module 'astroid.nodes' has no attribute 'CallFunc'
autopkgtest [05:26:18]: test django-sample: -----------------------]

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