https://bodhi.fedoraproject.org/updates/FEDORA-2017-0e5cf9525f
Note that both are testable from Mock, if you are not running Fedora 26 yet. All you need to do is to create a mock config with updates-testing.
cp /etc/mock/fedora-26-x86_64.cfg /etc/mock/fedora-26-x86_64-testing.cfg
edit /etc/mock/fedora-26-x86_64-testing.cfg (find [updates-testing], change enabled to 1)
run:
mock -r fedora-26-x86_64-testing --init mock -r fedora-26-x86_64-testing --install \ notebook ipython2 python2-ipykernel mock -r fedora-26-x86_64-testing --shell
# ipython3 # ipython2 # jupyter-notebook (test both kernels (2 and 3) in notebook)
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