[Debichem-devel] Bug#979294: python-ase autopkgtests fail with pytest 6

[Christian Kastner]

Source: python-ase
Version: 3.20.1-1
Severity: serious
User: pytest at packages.debian.org
Usertags: pytest-v6

Hi,

python-ase autopkgtests with pytest 6 in unstable. Apparently, something
is trying to write to /usr/lib/:

>   File "/usr/lib/python3/dist-packages/pluggy/callers.py", line 187, in _multicall
>     res = hook_impl.function(*args)
>   File "/usr/lib/python3/dist-packages/_pytest/stepwise.py", line 122, in pytest_sessionfinish
>     self.config.cache.set("cache/stepwise", [])
>   File "/usr/lib/python3/dist-packages/_pytest/cacheprovider.py", line 151, in set
>     self.warn("could not create cache path {path}", path=path)
>   File "/usr/lib/python3/dist-packages/_pytest/cacheprovider.py", line 90, in warn
>     warnings.warn(
> pytest.PytestCacheWarning: could not create cache path /usr/lib/python3/dist-packages/ase/test/.pytest_cache/v/cache/stepwise

In the previous debci run (with pytest 4.6.11), this was only warned about:

> /usr/lib/python3/dist-packages/_pytest/cacheprovider.py:127
>   /usr/lib/python3/dist-packages/_pytest/cacheprovider.py:127: PytestCacheWarning: could not create cache path /usr/lib/python3/dist-packages/ase/test/.pytest_cache/v/cache/nodeids
>     self.warn("could not create cache path {path}", path=path)

It seems as this has become a hard failure.