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Re: Issues running pytest from within .pybuild

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  Re: Issues running pytest from within .pybuild Scott Kitterman <debian@kitterman.com> - 2020-05-18 01:40 +0200

#12601 — Re: Issues running pytest from within .pybuild

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On Sunday, May 17, 2020 6:26:11 PM EDT Christian Kastner wrote:
> In a recent version of src:scikit-learn, a workaround was added to
> resolve an ImportMismatchError regarding one of the conftest.py files
> used by pytest.
> 
> I hit a new instance of this while preparing a new upstream release, so
> I inquired [1] with pytest upstream as to why this could be happening.
> 
> Apparently, the error is caused by the .pybuild directory being located
> as a subfolder of the source directory. This leads to pytest finding two
> separate sklearn/conftest.py files
>   * $SRCDIR/sklearn/conftest.py
>   * $SRCDIR/.pybuild/.../sklearn/conftest.py)
> which triggers the ImportMisMatchError.
> 
> Now, I've only seen this happen with src:scikit-learn, and (oddly
> enough) only with 2 of 4 conftest.py files. The other two do not trigger
> the error, nor do other packages of mine which use pytest.
> 
> Has anyone seen something similar with their packages, or is anyone
> aware of any recipes that can be used to resolve the issue properly?
> 
> >From the GitHub issue, it seems as if the current practice of testing
> 
> from within .pybuild is not supported by pytest, but I'm inclined to
> believe that it is my approach that is flawed.
> 
> [1] https://github.com/pytest-dev/pytest/issues/7223
> 
> Christian

I think this would only happen if sys.path had been extended to include the 
main source directory.  You may need to cd to $SRCDIR/.pybuild/.../sklearn 
before calling pytest or something may be inserting the source directory into 
sys.path.

Scott K

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