It would be wonderful if their were a kwarg for labels in violinlplot just as their is for other plot types. I find it useful to make violinplots from multiple samples on the same axis as shown below. However, the violinplot method does not allow labels to be added in order to distinguish the plots.
Hi, that is https://github.com/matplotlib/matplotlib/issues/4390 on our github. This is a good idea, any chance you want to put in a pull request?
Sorry, I do not have enough coding experience to be of much help now. I just wanted to let people know the feature would be used and appreciated if anyone had the necessary skills to make it happen.