bar_colors.py

from bokeh.io import output_file, show
from bokeh.models import ColumnDataSource
from bokeh.palettes import Spectral6
from bokeh.plotting import figure

output_file("bar_colors.html")

fruits = ['Apples', 'Pears', 'Nectarines', 'Plums', 'Grapes', 'Strawberries']
counts = [5, 3, 4, 2, 4, 6]

source = ColumnDataSource(data=dict(fruits=fruits, counts=counts, color=Spectral6))

p = figure(x_range=fruits, y_range=(0,9), plot_height=350, title="Fruit Counts",
           toolbar_location=None, tools="")

p.vbar(x='fruits', top='counts', width=0.9, color='color', legend_field="fruits", source=source)

p.xgrid.grid_line_color = None
p.legend.orientation = "horizontal"
p.legend.location = "top_center"

show(p)