All tests fail like so:
____________ ERROR collecting segmentation/tests/test_boundaries.py ____________
ImportError while importing test module '/builddir/build/BUILDROOT/python-scikit-image-0.16.2-4.fc33.x86_64/usr/lib64/python3.9/site-packages/skimage/segmentation/tests/test_boundaries.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
skimage/segmentation/tests/__init__.py:1: in <module>
    from ..._shared.testing import setup_test, teardown_test
skimage/_shared/testing.py:22: in <module>
    from .. import data, io
skimage/io/__init__.py:7: in <module>
    from .manage_plugins import *
skimage/io/manage_plugins.py:24: in <module>
    from .collection import imread_collection_wrapper
skimage/io/collection.py:13: in <module>
    from ..external.tifffile import TiffFile
skimage/external/tifffile/__init__.py:1: in <module>
    from .tifffile import imsave, imread, imshow, TiffFile, TiffWriter, \
skimage/external/tifffile/tifffile.py:285: in <module>
    from xml.etree import cElementTree as etree
E   ImportError: cannot import name 'cElementTree' from 'xml.etree' (/usr/lib64/python3.9/xml/etree/__init__.py)

except test failures are ignored, so the build is 'fine'.


Version-Release number of selected component (if applicable):
python-scikit-image-0.16.2-4.fc33


Steps to Reproduce:
1. fedpkg clone python-scikit-image
2. fedpkg mockbuild

Or

1. mock -r fedora-rawhide-x86_64 --install python3-scikit-image
2. mock -r fedora-rawhide-x86_64 --shell
3. python3 -c 'import skimage.io'

Actual results:
See above.


Expected results:
Imports and tests work.