This is an odd one; I have a simple test using the incremental xmlfile()
feature of lxml, that crashes *only* if the test case inherits from
trial.unittest.TestCase; it works if inheriting from unittest.TestCase.
SSCCE - well, hopefully correct - here:
https://gist.github.com/philmayers/387597c7407ab98f159426cea5f44a69
With lxml 3.8.0 (tried both manylinux1 wheel from PyPI and
locally-compiled) and a debug python, I get:
$ bin/python2-debug -m twisted.trial test_repro.py
test_repro
Test
test_one ... [OK]
test_two ... [OK]
-------------------------------------------------------------------------------
Ran 2 tests in 0.032s
PASSED (successes=2)
python2-debug: /builddir/build/BUILD/Python-2.7.13/Python/getargs.c:229:
vgetargs1: Assertion `compat || (args != (PyObject*)NULL)' failed.
Aborted (core dumped)
Obviously lxml is a pretty big chunk of Cython, but the trial-specific
nature of the crash has me curious which of the two is at fault.
I have tried to debug it, and it basically seems to end up somewhere
inside the Cython-generated code with an argument to a python function
that is NULL when it shouldn't be.
Any ideas?
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