Option to ignore errors in validation framework, use new ISMN interface in tests

[wpreimes]

Option to ignore errors in validation framework, use new ismn interface in tests, fix binary incompatibilities using oldest-supported-numpy, drop py 3.6 (as this is not supported by latest pytest and other dependencies).

[wpreimes]

also see:
https://github.com/scipy/oldest-supported-numpy
https://stackoverflow.com/a/66743692/17376826
scikit-learn-contrib/hdbscan#457

[wpreimes]

I should split this up into at least 2 PRs... will do that. @s-scherrer but to fix the pip install I think really only https://github.com/wpreimes/pytesmo/blob/master/pyproject.toml#L2 is relevant.

[sebhahn]

Does it mean the next pytesmo version will be >= py 3.7?

[s-scherrer]

I should split this up into at least 2 PRs... will do that. @s-scherrer but to fix the pip install I think really only https://github.com/wpreimes/pytesmo/blob/master/pyproject.toml#L2 is relevant.

Super, thanks a lot for fixing this!

[wpreimes]

Does it mean the next pytesmo version will be >= py 3.7?

from 0.14 on yes, to fix the pip installation I would release 0.13.4 with python 3.6 as well

[sebhahn]

would pip install work if pytest is pinned?

[wpreimes]

as long as pip does not run into version conflicts (with packages defined in setup.cfg) it should still work with old python versions as well.