Pygments 2.14 has been released, fixing some issues and changing Python

version compatibility to require 3.7 or higher. It also removes an empty

w span at the end of rendered output.
We now cap to this version explicitly. Going forward, we'll want to more

closely control the versions used, since they don't follow any kind of

semantic versioning.
This will also give us the opportunity to include some of Pygments'

changes in our release notes, or point to the appropriate Pygments docs

in the release notes under the Packaging section.
Unit tests have been updated to remove the extra empty span tag.

Re-ran setup.py develop and unit tests on all supported versions of

Python. They all pass.