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Setuptools v60 and later include a bundled version of distutils, a
deprecated standard library scheduled for removal in future versions of
Python. Setuptools v60 is only possible to install for Python 3.7 and later.
Python has a distutils.sysconfig.get_python_lib() function that returns
'/usr/lib/pythonX.Y' on posix systems. RPM-based systems actually use
'/usr/lib64/pythonX.Y' instead, so Fedora patches stdlib distutils for
Python 3.7 and Python 3.8 to return the correct value.
Python 3.9 and later introduce a sys.platlibdir property, which returns
the correct value on RPM-based systems.
The change to a distutils package not provided by Fedora on Python 3.7
and 3.8 causes a regression in distutils.sysconfig.get_python_lib() that
ultimately causes false positives to be emitted by pylint, because it
can no longer find the system source libraries.
Many Python tools are fairly aggressive about updating setuptools
packages, and so even though this package is a fair bit newer than
Python 3.7/3.8, it's not entirely unreasonable for a given user to have
such a modern package with a fairly old Python interpreter.
Updates to Python 3.7 and Python 3.8 are being produced for Fedora which
will fix the problem on up-to-date systems. Until then, we can force the
loading of platform-provided distutils when running the pylint
test. This is the least-invasive yet most comprehensive fix.
References:
https://github.com/pypa/setuptools/pull/2896
https://github.com/PyCQA/pylint/issues/5704
https://github.com/pypa/distutils/issues/110
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 20220204221804.2047468-2-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
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Run mypy and pylint on the iotests files directly from the Python CI
test infrastructure. This ensures that any accidental breakages to the
qemu.[qmp|aqmp|machine|utils] packages will be caught by that test
suite.
It also ensures that these linters are run with well-known versions and
test against a wide variety of python versions, which helps to find
accidental cross-version python compatibility issues.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-id: 20211019144918.3159078-15-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
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Tests a real connect, a real accept, and really sending and receiving a
message over a UNIX socket.
Brings coverage of protocol.py up to ~93%.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 20210915162955.333025-27-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
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This tests most of protocol.py -- From a hacked up Coverage.py run, it's
at about 86%. There's a few error cases that aren't very well tested
yet, they're hard to induce artificially so far. I'm working on it.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 20210915162955.333025-26-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
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flake8 is a little eager to check everything it can. Limit it to
checking inside the qemu namespace directory only. Update setup.cfg now
that the exclude patterns are no longer necessary.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Tested-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-id: 20210629214323.1329806-11-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
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Try using avocado to manage our various tests; even though right now
they're only invoking shell scripts and not really running any
python-native code.
Create tests/, and add shell scripts which call out to mypy, flake8,
pylint and isort to enforce the standards in this directory.
Add avocado-framework to the setup.cfg development dependencies, and add
avocado.cfg to store some preferences for how we'd like the test output
to look.
Finally, add avocado-framework to the Pipfile environment and lock the
new dependencies. We are using avocado >= 87.0 here to take advantage of
some features that Cleber has helpfully added to make the test output
here *very* friendly and easy to read for developers that might chance
upon the output in Gitlab CI.
[Note: ALL of the dependencies get updated to the most modern versions
that exist at the time of this writing. No way around it that I have
seen. Not ideal, but so it goes.]
Provided you have the right development dependencies (mypy, flake8,
isort, pylint, and now avocado-framework) You should be able to run
"avocado --config avocado.cfg run tests/" from the python folder to run
all of these linters with the correct arguments.
(A forthcoming commit adds the much easier 'make check'.)
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>
Message-id: 20210527211715.394144-28-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
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