tests/test_curvefitting.py | 10 7 + 3 - 0 !
tests/test_interpolation.py | 9 7 + 2 - 0 !
2 files changed, 14 insertions(+), 5 deletions(-)

 fix pytest 7.2 compatibility

Pytest 7.2 deprecated plain top-level `setup()` and `teardown()`
functions in favor of their own decorators:

https://docs.pytest.org/en/latest/changelog.html#pytest-7-2-0-2022-10-23
https://docs.pytest.org/en/latest/deprecations.html#setup-teardown

Now we need to use module-level setup/teardown, which is extremely