Backport #21429 from jklymak/doc-use-mpl-sphinx#21461

Merged

timhoffm merged 2 commits intomatplotlib:v3.5.xfrom

jklymak:backport-21429

Oct 26, 2021

Commits on Oct 25, 2021

Merge pull request #21429 from jklymak/doc-use-mpl-sphinx

timhoffm
authored and
jklymak
committed
Removing pyparsing pin
jklymak
authored