Grails, although it has gone out of fashion.
That and has replaced Java in many introduction to programming courses.
Which is good, when learning to programm performance isn't a concern as such.
I know Python since Zope was the only reason to use it, so around Python 1.5 or something.
Other than replacing what I used Perl for, regarding UNIX shell scripting, I never used Python in any scenario where performance might come into play.
There are plenty of options that beat Python's LOC, while providing an AOT/JIT toolchain out of the box.