Created attachment 546122 [details] emerge --info When trying to import the Python module scipy.spatial.qhull with sci-libs/scipy-0.19.1 and dev-python/cython-0.28.4 I get the following error: $ python3 Python 3.6.5 (default, Aug 6 2018, 10:52:07) [GCC 7.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import scipy.spatial.qhull Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib64/python3.6/site-packages/scipy/spatial/__init__.py", line 95, in <module> from .qhull import * File "qhull.pyx", line 2224, in init scipy.spatial.qhull AttributeError: 'cython_function_or_method' object has no attribute '__func__' It seems that scipy versions older than 1.0.1 and 1.1.0 do not work with cython 0.28, see https://github.com/scipy/scipy/pull/8581 upstream, and indeed the error persists with scipy 1.0.0 but disappears with scipy 1.1.0. By the way, this only happens to me with python3, I do not have this issue at all with python2.
Ran into the same problem just now...found this fix, which I'm testing: https://github.com/scipy/scipy/commit/b00aa149ef44baf6f0d215d2bd7062b5a04ff72c.patch You'll need to remove the last change (to tools/ci/appveyor/requirements.txt) to patch the downloaded tarball. Save it to /etc/portage/patches/sci-libs/scipy-0.19.1/scipy-0.19.1-cython-fix.patch.
...and the fix works. Save it as described above and rebuild scipy.
The affected versions are no longer in tree; feel free to close this.
