Ridgeline plot (aka Joyplot) library in Python
Have a look at the examples folder.
In short, you need to provide a function that will return the height of the chart in a given point.
Additionally, you can provide a function to specify the color and a distortion of the space (e.g. to implement perspective, see the donut example).
The image is returned as a Pillow object, use .show() to see it immediately or .save(filename) to save it as a file.