pybr2013-lightning-traps

A lightning talk [more like a quiz show :)] about some curious cases of unexpected behavior in Python.

Transcript

1. Python Traps @cesarkawakami @LeoRochael Python Brasil 2013
2. This talk requires audience participation.
3. We need you to be fast!!
4. Yell the correct option!
5. Q1. Warmup
6. 1. 3. I’m counting 4 I’m counting 3 I’m counting 2 I’m counting 1 I’m counting 0 2. I’m counting 0 I’m counting 1 I’m counting 2 I’m counting 3 I’m counting 4 None of the above
7. 3.None of the above
9. Q2. What language is it?
10. 1. Javascript 3. I can’t understand it, so it must be Perl 2. Python cevag "Uryyb Clguba Oenfvy!".rapbqr("rot13")
11. 2. Python cevag "Uryyb Clguba Oenfvy!".rapbqr("rot13")
12. #!/usr/bin/env python # -*- coding: rot13 -*- cevag "Uryyb Clguba Oenfvy!".rapbqr("rot13")
13. Q3. Exceptional behavior
14. 1. ZeroDivisionError 3. No exception is raised 2. RuntimeError
15. 2. RuntimeError
17. Q4. (“WTF”,)
18. 1. TypeError 2. List is updated
19. 1. TypeError 2. List is updated BOTH! You’re all correct. :)
20. becomes:
21. Thank you
22. We’re hiring! jobs@geekie.com.br