[Python-modules-team] Bug#919929: python-scipy: autopkgtest fails intermittently

[Drew Parsons]

Package: python-scipy
Version: 1.1.0-4
Followup-For: Bug #919929

Curiously, only python2 is affected now.
Same sympton, MemoryError, now in TestInt32Overflow.test_matvecs and
TestInt32Overflow.test_dia_matvec.

Assuming the MemoryError is again triggered by excessive warnings, the
warning generating the most messages now is

  RemovedInPytest4Warning: MarkInfo objects are deprecated as they contain merged marks which are hard to deal with correctly.
    Please use node.get_closest_marker(name) or node.iter_markers(name).
    Docs: https://docs.pytest.org/en/latest/mark.html#updating-code
    
Actually I think the problem is in python-pytest, not in python-scipy
anyway. The file references are 
/usr/lib/python2.7/dist-packages/_pytest/mark/evaluate.py:82
/usr/lib/python2.7/dist-packages/_pytest/mark/evaluate.py:103
/usr/lib/python2.7/dist-packages/_pytest/nodes.py:296
/usr/lib/python2.7/dist-packages/_pytest/skipping.py:84
etc

pytest is due for an upgrade from 3.10.1 to 4.4.0.

I'm inclined not to be troubled by this, not as far as scipy goes,
anyway. I expect it will clear out with natural upgrades post-buster.

CI testing isn't performed in buster, is it?  If it's important to get
a clean buster CI test then those 2 tests could be switched off in
python2 if desired.

Drew