Deprecation warning "the imp module is deprecated in favour of importlib"

[mluerig]

there is a deprecation warning that is breaking my CI pipeline when pykwalify is imported as a dependence of a dependence (original report of the issue AIM-Harvard/pyradiomics#642)

...
.tox\py37\lib\site-packages\radiomics\featureextractor.py:11: in <module>
    import pykwalify.core
.tox\py37\lib\site-packages\pykwalify\core.py:7: in <module>
    import imp
c:\anaconda3\envs\pp37\lib\imp.py:33: in <module>
    DeprecationWarning, stacklevel=2)
E   DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
ERROR: InvocationError for command 'E:\git_repos\phenopype\.tox\py37\Scripts\pytest.EXE' -s --cov=phenopype --cov-report=html (exited with code 4)
_______________________________________________________ summary _______________________________________________________
ERROR:   py37: commands failed

I fixed it with the -p no:warnings flag, but this should probably changed in pykwalify itself - if the project is still being maintained.

cheers

[Grokzen]

Fixed inside master and for next major release