Well, the title says the most. Just searching for a new one to learn. Mine is in fact, Python 3.7. I like Python 3.7, because it runs on like everything, even on my small raspi zero.
Mh I should add that I, in this moment, I speak Python, R, in advanced 8/10 levels of skill, HTML in beginner level, as I do in CSS and C++. JS in mid levels of skill
Python 3.7 is the language I recommend the most.
python + matplotlib + shapely is best for static graphics
python + svgwrite + shapely + HTML5 SVG is best for vector animation graphics