import random
import plotly
from numpy import *

N = 50.    

c = ['hsl('+str(h)+',50%'+',50%)' for h in linspace(0, 360, N)]

data_set = [{
    'y': 3.5*sin(pi * i/N) + i/N+(1.5+0.5*cos(pi*i/N))*random.rand(20),
    'type':'box',
    'marker':{'color': c[i]}
    } for i in range(int(N))]

layout = {'xaxis': {'showgrid':False,'zeroline':False, 'tickangle':45,'showticklabels':False},
          'yaxis': {'zeroline':False,'gridcolor':'white'},
          'paper_bgcolor': 'rgb(233,233,233)',
          'plot_bgcolor': 'rgb(233,233,233)',
          }

plotly.offline.plot(data_set)