old_contents: from bokeh.charts import Line, show, output_file
  
  # build a dataset where multiple columns measure the same thing
  data = dict(python=[2, 3, 7, 5, 26, 221, 44, 233, 254, 265, 266, 267, 120, 111],
              pypy=[12, 33, 47, 15, 126, 121, 144, 233, 254, 225, 226, 267, 110, 130],
              jython=[22, 43, 10, 25, 26, 101, 114, 203, 194, 215, 201, 227, 139, 160],
              test=['foo', 'bar', 'foo', 'bar', 'foo', 'bar', 'foo', 'bar', 'foo', 'bar',
                    'foo', 'bar', 'foo', 'bar']
              )
  
  # create a line chart where each column of measures receives a unique color and dash style
  line = Line(data, y=['python', 'pypy', 'jython'],
              dash=['python', 'pypy', 'jython'],
              color=['python', 'pypy', 'jython'],
              sort_legend=[("color", True)],
              title="Interpreter Sample Data", ylabel='Duration', legend=True)
  
  output_file("line_single.html", title="line_single.py example")
  
  show(line)
  
new_contents: from bokeh.charts import Line, show, output_file
  
  # build a dataset where multiple columns measure the same thing
  data = dict(python=[2, 3, 7, 5, 26, 221, 44, 233, 254, 265, 266, 267, 120, 111],
              pypy=[12, 33, 47, 15, 126, 121, 144, 233, 254, 225, 226, 267, 110, 130],
              jython=[22, 43, 10, 25, 26, 101, 114, 203, 194, 215, 201, 227, 139, 160],
              test=['foo', 'bar', 'foo', 'bar', 'foo', 'bar', 'foo', 'bar', 'foo', 'bar',
                    'foo', 'bar', 'foo', 'bar']
              )
  
  # create a line chart where each column of measures receives a unique color and dash style
  line = Line(data, y=['python', 'pypy', 'jython'],
              dash=['python', 'pypy', 'jython'],
              color=['python', 'pypy', 'jython'],
              legend_sort_field = 'color',
              legend_sort_direction = 'ascending',
              title="Interpreter Sample Data", ylabel='Duration', legend=True)
  
  output_file("line_single.html", title="line_single.py example")
  
  show(line)
  
subject: update example with new attributes