Python 102

Meet Python. It won't bite.

Thanks to @fat for slide layout inspiration!

Transcript

1. python 102 @boundsj https://github.com/boundsj Summer of 2012 Thursday, August 2, 12
2. What is the meaning of all this? Thursday, August 2, 12
3. I’m @boundsj (Jesse) Thursday, August 2, 12
4. I’ve been building Open311 apps Thursday, August 2, 12
5. Some of them use python Thursday, August 2, 12
6. But mostly we use JavaScript Thursday, August 2, 12
7. Thursday, August 2, 12
8. Thursday, August 2, 12
9. node.js, backbone.js, underscore.js Thursday, August 2, 12
10. But, Python is pretty awesome Thursday, August 2, 12
11. For server side and to support client side Thursday, August 2, 12
12. Django, Flask, functools, gevent, greenlet Thursday, August 2, 12
13. Thursday, August 2, 12
14. After you get used to it: Thursday, August 2, 12
15. Keeping a dictionary of counts # check if dict has key # if so then increment value # if not then add key and init # value to 1 def increment(d, k): if k in d: d[k] += 1 else: d[k] = 1 Thursday, August 2, 12
16. Compare to JavaScript: /* check if dict has key * if so then increment value * if not then add key and init * value to 1 */ function increment(d, k) { if (k in d) { d[k] += 1; } else { d[k] = 1; } } Thursday, August 2, 12
17. Thursday, August 2, 12
18. Thursday, August 2, 12
19. But this should be easier Thursday, August 2, 12
20. (review) # check if dict has key # if so then increment value # if not then add key and init # value to 1 def increment(d, k): if k in d: d[k] += 1 else: d[k] = 1 Thursday, August 2, 12
21. Dictionary of counts with Counter c = Counter() c["apple"] += 1 Thursday, August 2, 12
22. Thursday, August 2, 12
23. aka, hacking on the Chicago data portal Thursday, August 2, 12
24. But first a dose of reality from San Francisco: Thursday, August 2, 12
25. Thursday, August 2, 12
26. Thursday, August 2, 12
27. Back to Chicago Thursday, August 2, 12
28. Thursday, August 2, 12
29. If you query Socrata with Python, remember to bring a WindyPie Thursday, August 2, 12
30. While we wait for our data... Thursday, August 2, 12
31. Learn Python on Codecademy: http://www.codecademy.com Thursday, August 2, 12
32. How is our data download doing? Thursday, August 2, 12
33. Chicago’s top 5 restaurant inspection offenders? Thursday, August 2, 12
34. Maybe that local joint is not so bad after all? Thursday, August 2, 12
35. Thursday, August 2, 12
36. Use the deepdish, Luke Thursday, August 2, 12
37. “You mustn’t always believe what I say. Questions tempt you to tell lies, particularly when there is no answer.” Pablo Picasso Thursday, August 2, 12
38. Da Links: [Hitchhiker's guide to Python] http://docs.python-guide.org/en/latest/index.html [Counter rocks!] http://docs.python.org/library/collections.html#collections.Counter [Our founder] http://en.wikipedia.org/wiki/Guido_van_Rossum [Make isolated environments for development] http://www.virtualenv.org/en/latest/index.html http://www.doughellmann.com/projects/virtualenvwrapper/ [Learn Python and other things] http://www.codecademy.com Apps and Libraries: [deepdish] http://deepdish.herokuapp.com/ [WindyPie] https://github.com/codeforamerica/windypie Thursday, August 2, 12