Description of problem:
mu has a broken dependency
Version-Release number of selected component (if applicable):
How reproducible: easy
Steps to Reproduce:
1. mock -r fedora-31-x86_64 install mu
Problem: conflicting requests
- nothing provides python3.7dist(matplotlib) < 3.1 needed by mu-1.0.2-3.fc31.noarch
Fix is pushed, opening this to get an exception, as this makes Python Classroom Lab broken.
FEDORA-2019-10e243914b has been submitted as an update to Fedora 31. https://bodhi.fedoraproject.org/updates/FEDORA-2019-10e243914b
mu-1.0.2-5.fc31 has been pushed to the Fedora 31 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-10e243914b
Discussed during the 2019-09-03 blocker review meeting: 
The decision to classify this bug as an "AcceptedFreezeException" was made as it prevents the creation of a deliverable (the Python Classroom Lab).
mu-1.0.2-5.fc31 has been pushed to the Fedora 31 stable repository. If problems still persist, please make note of it in this bug report.