Downloading and scraping an HTML table

gistfile1.rb

require 'uri'
require 'net/http'
require 'nokogiri'

uri = URI.parse('http://en.wikipedia.org/wiki/Doctor_Who')
html = Net::HTTP.get(uri)
document = Nokogiri::HTML.parse(html)

tables = document.css('table.wikitable')
table = tables.first

table.css('tr').each do |row|
  cells = row.css('td')
  if cells.length == 3
    doctor, actor, tenure = cells.map(&:text)
    puts "#{doctor} was played by #{actor} during #{tenure}"
  end
end

# First Doctor was played by William Hartnell during 1963–1966[note 5]
# Second Doctor was played by Patrick Troughton during 1966–1969[note 5]
# Third Doctor was played by Jon Pertwee during 1970–1974[note 5]
# Fourth Doctor was played by Tom Baker during 1974–1981[note 5]
# Fifth Doctor was played by Peter Davison during 1982–1984[note 5]
# Sixth Doctor was played by Colin Baker during 1984–1986
# Seventh Doctor was played by Sylvester McCoy during 1987–1989, 1996[64][65][66]
# Eighth Doctor was played by Paul McGann during 1996
# Ninth Doctor was played by Christopher Eccleston during 2005
# Tenth Doctor was played by David Tennant during 2005–2010[12][note 5]
# Eleventh Doctor was played by Matt Smith during 2010–present