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from bokeh.charts import Dot, show, output_file

# best support is with data in a format that is table-like
data = {
    'sample': ['1st', '2nd', '1st', '2nd', '1st', '2nd'],
    'interpreter': ['python', 'python', 'pypy', 'pypy', 'jython', 'jython'],
    'timing': [-2, 5, 12, 40, 22, 30],

# x-axis labels pulled from the interpreter column, stacking labels from sample column
dots = Dot(data, values='timing', label='interpreter',
           group='sample', agg='mean',
           title="Python Interpreter Sampling",
           legend='top_right', width=600)

output_file("dots.html", title=" example")