While it is good to have plotnine for python but ggplot2 in R has this whole ecosystem of packages/extensions that augment the ggplot2 such as ggalluvial, ggrepel. More at this link https://exts.ggplot2.tidyverse.org/gallery/ This would make it really compelling to tip my toes in the Python world. Regardless, I am liking this "ggplotification" of python. All we need is more "tidification" of Python data frame world.