old_contents: import pandas as pd
  
  from bokeh.charts import Horizon, output_file, show
  
  # read in some stock data from the Yahoo Finance API
  AAPL = pd.read_csv(
      "http://ichart.yahoo.com/table.csv?s=AAPL&a=0&b=1&c=2000&d=0&e=1&f=2010",
      parse_dates=['Date'])
  
  MSFT = pd.read_csv(
      "http://ichart.yahoo.com/table.csv?s=MSFT&a=0&b=1&c=2000&d=0&e=1&f=2010",
      parse_dates=['Date'])
  
  IBM = pd.read_csv(
      "http://ichart.yahoo.com/table.csv?s=IBM&a=0&b=1&c=2000&d=0&e=1&f=2010",
      parse_dates=['Date'])
  
  data = dict([
      ('AAPL', AAPL['Adj Close']),
      ('Date', AAPL['Date']),
      ('MSFT', MSFT['Adj Close']),
      ('IBM', IBM['Adj Close'])]
  )
  
  hp = Horizon(data, x='Date', width=800, height=300,
               title="horizon plot using stock inputs")
  
  output_file("horizon.html", title="horizon.py example")
  
  show(hp)
  
new_contents: import pandas as pd
  
  from bokeh.charts import Horizon, output_file, show
  
  # read in some stock data from the Yahoo Finance API
  AAPL = pd.read_csv(
      "http://ichart.yahoo.com/table.csv?s=AAPL&a=0&b=1&c=2000&d=0&e=1&f=2010",
      parse_dates=['Date'])
  
  MSFT = pd.read_csv(
      "http://ichart.yahoo.com/table.csv?s=MSFT&a=0&b=1&c=2000&d=0&e=1&f=2010",
      parse_dates=['Date'])
  
  IBM = pd.read_csv(
      "http://ichart.yahoo.com/table.csv?s=IBM&a=0&b=1&c=2000&d=0&e=1&f=2010",
      parse_dates=['Date'])
  
  data = dict([
      ('AAPL', AAPL['Adj Close']),
      ('Date', AAPL['Date']),
      ('MSFT', MSFT['Adj Close']),
      ('IBM', IBM['Adj Close'])]
  )
  
  hp = Horizon(data, x='Date', plot_width=800, plot_height=300, title="horizon plot using stock inputs")
  
  output_file("horizon.html", title="horizon.py example")
  
  show(hp)
  
subject: Fix horizon.py example