There are more smart people building software now than there have been at any point in the past, which means that it's more important than ever to stay on top of new developments, libraries, frameworks, and everything else. To really take advantage of this wealth of innovation, however, you've got to look beyond your normal community -- what's going on in Python? And how can we use that to make our Ruby lives easier? In this session, we'll explore that question. We'll look at actual examples of code and concepts borrowed and reimplemented to form a better idea of when it's appropriate and when it'll fall flat.

1. GREAT
DEVELOPERS
STEAL
ben scofield / @bscofield / scottish ruby conference / 8 april 2011

2. flickr: hisgett

3. ART

4. http://obeygiant.com/headlines/obey-x-austin-sxsw

5. I’M NO
ART HISTORIAN

6. Mythology

7. http://www.saversplanet.com/wallpapers/one-ring-wallpapers_3072_1600.jpg

8. http://www.xibalba.demon.co.uk/jbr/trek/gen.html

9. http://www.scifinow.co.uk/news/top-five-sci-fi-vehicles/

10. Music
V
U

11. http://www.wired.com/special_multimedia/2008/pl_music_1609

12. http://www.soulculture.co.uk/features/jimi-hendrix-the-epitome-of-a-legend/

13. http://upload.wikimedia.org/wikipedia/commons/d/d3/Eleanor_Rigby_-_DSC05154.JPG (Benkid77)

14. Software Development

15. Software Development

16. SUnit
xUnit
JUnit
CppUnit
NUnit
Lapidary  Test::Unit

17. JBehave
BDD
RBehave  RSpec
NBehave
PHPSpec
Jasmine

18. Rails
Rails
CakePHP
Grails
Rhino on Rails
ASP.NET MVC

19. ORM Hibernate  NHibernate
ActiveRecord  SubSonic

20. mod_perl
mod_* mod_python
mod_php
mod_rails  Passenger

21. Paste
WSGI
Rack
Jack
Plack
Hack

22. WSGI
def simple_app(environ, start_response):
"""Simplest possible application object"""
status = '200 OK'
response_headers = [('Content-type', 'text/html')]
start_response(status, response_headers)
return ['Hello Worldn']
http://www.python.org/dev/peps/pep-0333/

23. Paste
def app(environ, start_response):
start_response('200 OK', [('content-type', 'text/html')])
return ['Hello world']
https://bitbucket.org/ianb/paste

24. Rack
def call(env)
[200, {'Content-Type' => 'text/html'}, 'Hello World']
end
https://github.com/rack/rack

25. Plack
my $app = sub {
my $env = shift;
return [ 200, [ 'Content-Type' => 'text/html' ], 'Hello World' ];
};
https://github.com/miyagawa/Plack

26. Jack
function(env){
return [200, {'Content-Type': 'text/html'}, "Hello World"];
};
https://github.com/JackDanger/jack

27. Hack
app :: Application
app = env -> return $
Response 200 [ ("Content-Type", "text/plain") ] (pack "Hello World")
main = run app
https://github.com/nfjinjing/hack

28. Express.js
Ratpack
Sinatra
Sammy.js
Fitzgerald
Slim
Scalatra
Nancy

29. Sinatra
require 'rubygems'
require 'sinatra'
get '/' do
erb :homepage
end
get '/names/:name' do
"Hello, #{params[:name]}"
end
post '/login' do
# data is in request.body
# validate login
end
https://github.com/bmizerany/sinatra

30. Express.js
var express = require('express');
var app = express.createServer();
app.configure(function(){
app.use(express.bodyParser());
});
app.get('/', function(request, response) {
response.render('homepage.ejs');
});
app.get('/names/:name', function(request, response) {
response.send('Hello, ' + request.param('name'));
});
app.post('/login', function(request, response) {
// data is in request.body
// validate login
});
https://github.com/visionmedia/express

31. Ratpack
get("/") {
render "homepage.html"
}
get("/names/:name") {
"Hello, ${urlparams.name}"
}
post("/login") {
// data is in params.field
// validate login
}
https://github.com/bleedingwolf/Ratpack

32. Slim
<?php
require 'Slim/Slim.php';
Slim::init();
Slim::get('/', function () {
Slim::render('homepage.php');
});
Slim::get('/names/:name', function ($name) {
echo "Hello, $name";
});
Slim::post('/login', function () {
# data is in Slim::request()->post('field')
# validate login
});
Slim::run();
?>
https://github.com/codeguy/Slim

33. Nancy
public class Sample : NancyModule
{
public Module()
{
Get["/"] = params => {
return View.Spark("homepage.spark", params);
};
Get["/names/{name}"] = params => {
return string.Concat("Hello, ", params.name);
};
Post["/login"] = params => {
/// data is in params.field
/// validate login
};
}
}
https://github.com/thecodejunkie/Nancy

34. Sammy.js
(function($) {
var app = $.sammy('#main', function() {
this.get('#/', function() {
this.partial('files/homepage.html');
});
this.post('#/login', function() {
// data is in params.field
// validate login
});
});
$(function() { app.run('#/'); });
})(jQuery);
https://github.com/quirkey/sammy

35. Interlude
On Naming

36. Scalatra
import org.scalatra._
import org.scalatra.scalate._
class Example extends ScalatraServlet with ScalateSupport {
get("/") {
templateEngine.layout("homepage.scaml")
}
get("/names/:name") {
<p>Hello, {params("name")}</p>
}
post("/login") {
// data is in params{"field"}
// validate login
}
}
https://github.com/scalatra/scalatra

37. Software Theft 101

38. Software Theft 101

39. Need-Driven

40. 1 Find a problem

41. 2 Pick a target

42. 3 Case the joint

43. Opportunity-
Driven

44. 1 Pick a target

45. 2 Case the joint

46. Wait for your
3 chance

47. Casing the Joint

48. Searching

49. GitHub
General BitBucket
SourceForge
Google Code

50. Rubygems
Specific PEPs
PyPI
CPAN

51. Evaluating

52. Forks and watchers
Active repositories
Edge case tests
Good Issues
Citations
Documentation
History
Strong opinions

53. Perpetration

54. Location
Trouble Paradigm
Idiom
Style

55. Inspire JBehave  RSpec

56. Sample Sinatra  Padrino

57. Cover JUnit  NUnit
WSGI  Rack

58. RUBYISTS
can steal from
EVERYONE

59. Procedural
Object-Oriented
Functional

60. Metaprogramming

61. Test-focused

62. THANK YOU!
now go burgle something
Ben Scofield / @bscofield
http://benscofield.com
http://speakerrate.com/t/7099