Converting data for use in a binned plot is slow

[0xTiger]

blockheights/oreheights_reader.py

Line 41 in 7bdbb69

pltdata.append(flatten([[k]*v[id] for k,v in layers.items() if id in v]))

Requiring that ints are converted to arrays in order to fit them into bins to generate a violin plot is very slow. Is there a faster way to plot a violin plot, maybe making use of fillbetween?