old_contents: from bokeh.plotting import *
  
  N = 4000
  
  factors = ["a", "b", "c", "d", "e", "f", "g", "h"]
  x0 = [0, 0, 0, 0, 0, 0, 0, 0]
  x =  [50, 40, 65, 10, 25, 37, 80, 60]
  
  p1 = figure(title="Dot Plot", tools="resize,save", y_range=factors, x_range=[0,100])
  
  p1.segment(x0, factors, x, factors, line_width=2, line_color="green", )
  p1.circle(x, factors, size=15, fill_color="orange", line_color="green", line_width=3, )
  
  factors = ["foo", "bar", "baz"]
  x = ["foo", "foo", "foo", "bar", "bar", "bar", "baz", "baz", "baz"]
  y = ["foo", "bar", "baz", "foo", "bar", "baz", "foo", "bar", "baz"]
  colors = [
      "#0B486B", "#79BD9A", "#CFF09E",
      "#79BD9A", "#0B486B", "#79BD9A",
      "#CFF09E", "#79BD9A", "#0B486B"
  ]
  
  p2 = figure(title="Categorical Heatmap", tools="resize,hover,save",
      x_range=factors, y_range=factors)
  
  p2.rect(x, y, color=colors, width=1, height=1)
  
  output_file("categorical.html", title="categorical.py example")
  show([p1, p2])  # open a browser
  
new_contents: from bokeh.plotting import *
  
  N = 4000
  
  factors = ["a", "b", "c", "d", "e", "f", "g", "h"]
  x0 = [0, 0, 0, 0, 0, 0, 0, 0]
  x =  [50, 40, 65, 10, 25, 37, 80, 60]
  
  p1 = figure(title="Dot Plot", tools="resize,save", y_range=factors, x_range=[0,100])
  
  p1.segment(x0, factors, x, factors, line_width=2, line_color="green", )
  p1.circle(x, factors, size=15, fill_color="orange", line_color="green", line_width=3, )
  
  factors = ["foo", "bar", "baz"]
  x = ["foo", "foo", "foo", "bar", "bar", "bar", "baz", "baz", "baz"]
  y = ["foo", "bar", "baz", "foo", "bar", "baz", "foo", "bar", "baz"]
  colors = [
      "#0B486B", "#79BD9A", "#CFF09E",
      "#79BD9A", "#0B486B", "#79BD9A",
      "#CFF09E", "#79BD9A", "#0B486B"
  ]
  
  p2 = figure(title="Categorical Heatmap", tools="resize,hover,save",
      x_range=factors, y_range=factors)
  
  p2.rect(x, y, color=colors, width=1, height=1)
  
  output_file("categorical.html", title="categorical.py example")
  show(VBox(p1, p2))  # open a browser
  
subject: use VBox when passing plots to show()