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Learning by Trolling

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November 21, 2015
Programming
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Learning byย Trolling

PyConES 2015

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Anler

November 21, 2015
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Transcript

  1. Learning by Trolling Aprende Python trolleando a tus compaรฑeros. ___________________________

    /| /| | | ||__|| | Please don't | / O O\__ feed | / \ the trolls | / \ \ | / _ \ \ ---------------------- / |\____\ \ || / | | | |\____/ || / \|_|_|/ | __|| / / \ |____| || / | | /| | --| | | | // | ____ -- | ,* _ | |_|_|_| | \-/ ,*-- _--\ _ \ // | / _ \\ _ // | / / \_ /- | - | | ,* ___ c_c_c_C/ \C_c_c_c____________ @jespinog @anler

  2. ยฟQuรฉ es un Troll?

  3. Para los ringers...

  4. Para los mayores...

  5. Para mi y para mis compaรฑeros... @jespinog

  6. ยฟY en quรฉ consiste?

  7. Esto cree la mayorรญa...

  8. Cuando la realidad es mรกs asรญ

  9. Lecciรณn 1 Usa __init__.py para pasar desapercibido ___________________________ /| /|

    | | ||__|| | | / O O\__ Lesson number one: | / \ usa __init__.py | / \ \ | / _ \ \ ---------------------- / |\____\ \ || / | | | |\____/ || / \|_|_|/ | __|| / / \ |____| || / | | /| | --| | | | // | ____ -- | ,* _ | |_|_|_| | \-/ ,*-- _--\ _ \ // | / _ \\ _ // | / / \_ /- | - | | ,* ___ c_c_c_C/ \C_c_c_c____________

  10. $ tree app app โ”œโ”€โ”€ __init__.py โ””โ”€โ”€ utils.py # cรณdigo

    del fichero __init__.py import warnings warnings.warn( "Error entre el teclado y la silla")

  11. $ python >>> import app.utils /home/anler/tmp/app/__init__.py:3: UserWarning: Error entre el

    teclado y la silla warnings.warn("Error entre el teclado y la silla") >>>

  12. Siempre que se importe cualquier mรณdulo dentro de un paquete,

    el cรณdigo dentro del fichero __init__.py del paquete es ejecutado. Por lo general a este fichero se aรฑade cรณdigo de inicializaciรณn troleo. Todos los ficheros __init__.py durante un import son ejecutados segรบn su orden de anidaciรณn.

  13. Lecciรณn 2 Usa monkey-patching siempre que puedas ___________________________ /| /|

    | | ||__|| | | / O O\__ Lesson number two: | / \ monkey patch pliss | / \ \ | / _ \ \ ---------------------- / |\____\ \ || / | | | |\____/ || / \|_|_|/ | __|| / / \ |____| || / | | /| | --| | | | // | ____ -- | ,* _ | |_|_|_| | \-/ ,*-- _--\ _ \ // | / _ \\ _ // | / / \_ /- | - | | ,* ___ c_c_c_C/ \C_c_c_c____________

  14. Monkey Patch Se refiere a las modificaciones en tiempo de

    ejecuciรณn a una clase o mรณdulo motivado por la intenciรณn de parchear cรณdigo de terceros como soluciรณn a un bug o feature que no se comporta como es deseado.

  15. $ tree app โ”œโ”€โ”€ __init__.py โ””โ”€โ”€ utils.py # cรณdigo del

    fichero __init__.py from . import utils utils.current_year = lambda: โ€˜Problem?โ€™ # cรณdigo del fichero utils.py from datetime import date def current_year(): return date.today().strftime(โ€˜%Yโ€™)

  16. $ python >>> from app.utils import current_year >>> current_year() โ€˜Problem?โ€™

  17. Trolleando Django lorem-ipsum โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–€โ–€โ–„ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–ˆโ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–€โ–’โ–„โ–„โ–„โ–’โ–‘โ–ˆโ–€โ–€โ–€โ–€โ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–ˆโ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆ โ–ˆโ–’โ–ˆโ–’โ–„โ–‘โ–€โ–„โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–ˆ โ–ˆโ–’โ–ˆโ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–€โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–„โ–€โ–€โ–€โ–„โ–’โ–ˆ

    โ–‘โ–ˆโ–€โ–„โ–‘โ–ˆโ–„โ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–€โ–‘โ–€โ–€โ–‘โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–€โ–„โ–€โ–ˆโ–„โ–„โ–‘โ–ˆโ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–€โ–€โ–ˆโ–€โ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆโ–ˆโ–‘โ–‘โ–€โ–ˆโ–„โ–„โ–„โ–ˆโ–„โ–„โ–ˆโ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–€โ–€โ–„โ–‘โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–€โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ

  18. from django.utils import lorem_ipsum lorem_ipsum.COMMON_P = ( 'Bacon ipsum dolor

    sit amet pork venison kielbasa, pork chop ham ' 'hock meatloaf frankfurter chicken shank tri-tip strip steak salami meatball. ' ... ) lorem_ipsum.WORDS = ( 'beef', 'chicken', 'pork', 'bacon', 'chuck', 'short loin', 'sirloin', 'shank', 'flank', 'sausage', 'pork belly', 'shoulder', 'cow', 'pig', โ€ฆ ) lorem_ipsum.COMMON_WORDS = ( 'consectetur', 'adipisicing', 'elit', 'sed', 'do', 'eiusmod', 'tempor', 'incididunt', 'ut', 'labore', 'et', 'dolore', 'magna', โ€ฆ )

  19. {% lorem %} Bacon ipsum dolor amet pig biltong pork

    fatback venison sausage corned beef ham hock kevin spare ribs porchetta pastrami. Sausage swine ribeye, bacon strip steak cow rump flank ball tip andouille short loin frankfurter doner. Short loin t- bone tail turducken flank sausage, ball tip picanha frankfurter kevin beef ribs. Jerky salami pork pig venison shankle filet mignon. Cupim corned beef shoulder boudin tri-tip. Bacon capicola pork belly jerky hamburger porchetta pork chop tail short loin. ...
  20. None

  21. Troleando el tiempo โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–€โ–€โ–„ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–ˆโ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–€โ–’โ–„โ–„โ–„โ–’โ–‘โ–ˆโ–€โ–€โ–€โ–€โ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–ˆโ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆ โ–ˆโ–’โ–ˆโ–’โ–„โ–‘โ–€โ–„โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–ˆ โ–ˆโ–’โ–ˆโ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–€โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–„โ–€โ–€โ–€โ–„โ–’โ–ˆ

    โ–‘โ–ˆโ–€โ–„โ–‘โ–ˆโ–„โ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–€โ–‘โ–€โ–€โ–‘โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–€โ–„โ–€โ–ˆโ–„โ–„โ–‘โ–ˆโ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–€โ–€โ–ˆโ–€โ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆโ–ˆโ–‘โ–‘โ–€โ–ˆโ–„โ–„โ–„โ–ˆโ–„โ–„โ–ˆโ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–€โ–€โ–„โ–‘โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–€โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ

  22. $ tree app โ”œโ”€โ”€ __init__.py โ””โ”€โ”€ utils.py # cรณdigo del

    fichero __init__.py from random import random import time real_time = time.time time.time = lambda: real_time() + random() # cรณdigo del fichero utils.py import time def profile(): pre = time.time() print(โ€œExpensive computationโ€) time.sleep(1) post = time.time() taken = post - pre print(โ€œ{} secondsโ€.format(taken))

  23. $ python >>> from app.utils import profile >>> profile() expensive

    computation 0.4662015438079834 seconds >>> profile() expensive computation 0.9543671607971191 seconds
  24. None

  25. Troleando la apertura de ficheros โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–€โ–€โ–„ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–ˆโ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–€โ–’โ–„โ–„โ–„โ–’โ–‘โ–ˆโ–€โ–€โ–€โ–€โ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–ˆโ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆ

    โ–ˆโ–’โ–ˆโ–’โ–„โ–‘โ–€โ–„โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–ˆ โ–ˆโ–’โ–ˆโ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–€โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–„โ–€โ–€โ–€โ–„โ–’โ–ˆ โ–‘โ–ˆโ–€โ–„โ–‘โ–ˆโ–„โ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–€โ–‘โ–€โ–€โ–‘โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–€โ–„โ–€โ–ˆโ–„โ–„โ–‘โ–ˆโ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–€โ–€โ–ˆโ–€โ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆโ–ˆโ–‘โ–‘โ–€โ–ˆโ–„โ–„โ–„โ–ˆโ–„โ–„โ–ˆโ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–€โ–€โ–„โ–‘โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–€โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ

  26. $ ls app โ”œโ”€โ”€ __init__.py โ”œโ”€โ”€ report.txt โ””โ”€โ”€ utils.py #

    cรณdigo del fichero __init__.py import builtins from io import StringIO as StrB builtins.open = lambda *a, **k: StrB(TROLL) TROLL = โ€œโ€โ€\ โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ ... โ€œโ€โ€ # cรณdigo del fichero utils.py def open_report(): return open(โ€œreport.txtโ€)

  27. $ python >>> from app.utils import open_report >>> with open_report()

    as report: โ€ฆ report.read() โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–€โ–€โ–„ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–ˆโ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–€โ–’โ–„โ–„โ–„โ–’โ–‘โ–ˆโ–€โ–€โ–€โ–€โ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–ˆโ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆ โ–ˆโ–’โ–ˆโ–’โ–„โ–‘โ–€โ–„โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–ˆ โ–ˆโ–’โ–ˆโ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–€โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–„โ–€โ–€โ–€โ–„โ–’โ–ˆ โ–‘โ–ˆโ–€โ–„โ–‘โ–ˆโ–„โ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–€โ–‘โ–€โ–€โ–‘โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–€โ–„โ–€โ–ˆโ–„โ–„โ–‘โ–ˆโ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–€โ–€โ–ˆโ–€โ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆโ–ˆโ–‘โ–‘โ–€โ–ˆโ–„โ–„โ–„โ–ˆโ–„โ–„โ–ˆโ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–€โ–€โ–„โ–‘โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–€โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ
  28. None

  29. En Python puedes hacer monkey-patch prรกcticamente cualquier cosa gracias a

    la estructura mutable de tabla hash de casi todos los objetos incluรญdos los mรณdulos y a que los mรณdulos solo se importan una vez y se guardan a modo cachรฉ en <sys.modules>. Antes de sobrescribir recuerda siempre guardar una referencia a la implementaciรณn original, puede que te haga falta utilizarla en algรบn otro sitio.

  30. Lecciรณn 3 Si monkey-patch se resiste, prueba con ctypes ___________________________

    /| /| | | ||__|| | | / O O\__ Lesson number three: | / \ ctypes es amigo | / \ \ | / _ \ \ ---------------------- / |\____\ \ || / | | | |\____/ || / \|_|_|/ | __|| / / \ |____| || / | | /| | --| | | | // | ____ -- | ,* _ | |_|_|_| | \-/ ,*-- _--\ _ \ // | / _ \\ _ // | / / \_ /- | - | | ,* ___ c_c_c_C/ \C_c_c_c____________

  31. ctypes Nos provee con tipos de datos compatibles con C,

    por lo que nos permite modelar la estructura en C de un objeto y utilizar dicho modelo en nuestro cรณdigo para leer y modificar sus valores.

  32. Trolleando los enteros โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–€โ–€โ–„ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–ˆโ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–€โ–’โ–„โ–„โ–„โ–’โ–‘โ–ˆโ–€โ–€โ–€โ–€โ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–ˆโ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆ โ–ˆโ–’โ–ˆโ–’โ–„โ–‘โ–€โ–„โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–ˆ โ–ˆโ–’โ–ˆโ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–€โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–„โ–€โ–€โ–€โ–„โ–’โ–ˆ

    โ–‘โ–ˆโ–€โ–„โ–‘โ–ˆโ–„โ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–€โ–‘โ–€โ–€โ–‘โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–€โ–„โ–€โ–ˆโ–„โ–„โ–‘โ–ˆโ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–€โ–€โ–ˆโ–€โ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆโ–ˆโ–‘โ–‘โ–€โ–ˆโ–„โ–„โ–„โ–ˆโ–„โ–„โ–ˆโ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–€โ–€โ–„โ–‘โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–€โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ

  33. estructura de un entero en C +----------------+ | ob_refcnt |

    +----------------+ | ob_type | +----------------+ | ob_size | +----------------+ | ob_digit[] | +----------------+ En Python, id(entero) devuelve la direcciรณn de memoria al objeto que representa al entero este campo de la estructura contiene una referencia a la clase del objeto

  34. $ tree app โ”œโ”€โ”€ __init__.py โ””โ”€โ”€ utils.py # cรณdigo del

    fichero __init__.py from ctypes import * class EvilInt(int): __repr__ = lambda self: "42" __str__ = __repr__ lsize = sizeof(c_long) for n in range(258): addr = id(n) + lsize type_addr = c_long.from_address(addr) type_addr.value = id(EvilInt) # cรณdigo del fichero utils.py def body_mass_index(height, weight): return weight / height**2

  35. $ python >>> from app.utils import body_mass_index >>> body_mass_index(1.77, 78)

    42 >>> 1.77 42 >>> 78 42
  36. None

  37. ctypes nos permite acceder a estructuras y funciones de C

    definidas en DLLs y shared-libraries directamente sin necesidad de escribir lo que se llama un โ€œextension moduleโ€.

  38. Lecciรณn 4 Si ctypes es muy complicado, prueba con masterkey

    ___________________________ /| /| | | ||__|| | | / O O\__ Lesson number four: | / \ masterkey es muy amigo | / \ \ | / _ \ \ ---------------------- / |\____\ \ || / | | | |\____/ || / \|_|_|/ | __|| / / \ |____| || / | | /| | --| | | | // | ____ -- | ,* _ | |_|_|_| | \-/ ,*-- _--\ _ \ // | / _ \\ _ // | / / \_ /- | - | | ,* ___ c_c_c_C/ \C_c_c_c____________

  39. masterkey Permite redefinir los tipos primitivos de Python.

  40. Trolleando los booleanos โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–€โ–€โ–„ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–ˆโ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–€โ–’โ–„โ–„โ–„โ–’โ–‘โ–ˆโ–€โ–€โ–€โ–€โ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–ˆโ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆ โ–ˆโ–’โ–ˆโ–’โ–„โ–‘โ–€โ–„โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–ˆ โ–ˆโ–’โ–ˆโ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–€โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–„โ–€โ–€โ–€โ–„โ–’โ–ˆ

    โ–‘โ–ˆโ–€โ–„โ–‘โ–ˆโ–„โ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–€โ–‘โ–€โ–€โ–‘โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–€โ–„โ–€โ–ˆโ–„โ–„โ–‘โ–ˆโ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–€โ–€โ–ˆโ–€โ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆโ–ˆโ–‘โ–‘โ–€โ–ˆโ–„โ–„โ–„โ–ˆโ–„โ–„โ–ˆโ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–€โ–€โ–„โ–‘โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–€โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ

  41. $ ls app โ”œโ”€โ”€ __init__.py โ””โ”€โ”€ utils.py # cรณdigo del

    fichero __init__.py from masterkey import open_class, close_class open_class(bool) bool.__repr__ = lambda x: โ€œFalseโ€ if x else โ€œTrueโ€ bool.__str__ = bool.__repr__ close_class(bool) # cรณdigo del fichero utils.py def as_boolean(x): return bool(x)

  42. $ python >>> from app.utils import as_boolean >>> as_boolean(1) False

    >>> as_boolean(False) True >>> False True
  43. None

  44. El mรณdulo masterkey nos permite modificar la condiciรณn de inmutabilidad

    que tienen algunos tipos built-in para que podamos extenderlos con cualquier funcionalidad trolleo que se nos ocurra. Me pregunto si RubyOnRails empezรณ asรญ, como un trolleo...

  45. Lecciรณn 5 Si te aburres, modifica el intรฉrprete ___________________________ /|

    /| | | ||__|| | | / O O\__ Lesson number five: | / \ change all the things! | / \ \ | / _ \ \ ---------------------- / |\____\ \ || / | | | |\____/ || / \|_|_|/ | __|| / / \ |____| || / | | /| | --| | | | // | ____ -- | ,* _ | |_|_|_| | \-/ ,*-- _--\ _ \ // | / _ \\ _ // | / / \_ /- | - | | ,* ___ c_c_c_C/ \C_c_c_c____________

  46. Python-EE Tracebacks โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–€โ–€โ–„ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–ˆโ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–€โ–’โ–„โ–„โ–„โ–’โ–‘โ–ˆโ–€โ–€โ–€โ–€โ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–ˆโ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆ โ–ˆโ–’โ–ˆโ–’โ–„โ–‘โ–€โ–„โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–ˆ โ–ˆโ–’โ–ˆโ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–€โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–„โ–€โ–€โ–€โ–„โ–’โ–ˆ โ–‘โ–ˆโ–€โ–„โ–‘โ–ˆโ–„โ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–€โ–‘โ–€โ–€โ–‘โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆ

    โ–‘โ–‘โ–ˆโ–‘โ–‘โ–€โ–„โ–€โ–ˆโ–„โ–„โ–‘โ–ˆโ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–€โ–€โ–ˆโ–€โ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆโ–ˆโ–‘โ–‘โ–€โ–ˆโ–„โ–„โ–„โ–ˆโ–„โ–„โ–ˆโ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–€โ–€โ–„โ–‘โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–€โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ

  47. Exception: EE ValueErrorException at <module>(ee-traceback.py:25) at func8(ee-traceback.py:23) at func7(ee-traceback.py:20) at

    func6(ee-traceback.py:17) at func5(ee-traceback.py:14) at func4(ee-traceback.py:11) at func3(ee-traceback.py:8) at func2(ee-traceback.py:5) at func1(ee-traceback.py:2)

  48. Python-EE Exceptions โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–€โ–€โ–„ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–ˆโ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–€โ–’โ–„โ–„โ–„โ–’โ–‘โ–ˆโ–€โ–€โ–€โ–€โ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–ˆโ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆ โ–ˆโ–’โ–ˆโ–’โ–„โ–‘โ–€โ–„โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–ˆ โ–ˆโ–’โ–ˆโ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–€โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–„โ–€โ–€โ–€โ–„โ–’โ–ˆ โ–‘โ–ˆโ–€โ–„โ–‘โ–ˆโ–„โ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–€โ–‘โ–€โ–€โ–‘โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆ

    โ–‘โ–‘โ–ˆโ–‘โ–‘โ–€โ–„โ–€โ–ˆโ–„โ–„โ–‘โ–ˆโ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–€โ–€โ–ˆโ–€โ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆโ–ˆโ–‘โ–‘โ–€โ–ˆโ–„โ–„โ–„โ–ˆโ–„โ–„โ–ˆโ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–€โ–€โ–„โ–‘โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–€โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ

  49. Traceback (most recent call last): File "invalid-import.py", line 1, in

    <module> import not_valid_module AbstractImportErrorBuilderException: No module named 'not_valid_module'

  50. assert no-determinista โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–€โ–€โ–„ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–ˆโ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–€โ–’โ–„โ–„โ–„โ–’โ–‘โ–ˆโ–€โ–€โ–€โ–€โ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–ˆโ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆ โ–ˆโ–’โ–ˆโ–’โ–„โ–‘โ–€โ–„โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–ˆ โ–ˆโ–’โ–ˆโ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–€โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–„โ–€โ–€โ–€โ–„โ–’โ–ˆ โ–‘โ–ˆโ–€โ–„โ–‘โ–ˆโ–„โ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–€โ–‘โ–€โ–€โ–‘โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆ

    โ–‘โ–‘โ–ˆโ–‘โ–‘โ–€โ–„โ–€โ–ˆโ–„โ–„โ–‘โ–ˆโ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–€โ–€โ–ˆโ–€โ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆโ–ˆโ–‘โ–‘โ–€โ–ˆโ–„โ–„โ–„โ–ˆโ–„โ–„โ–ˆโ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–€โ–€โ–„โ–‘โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–€โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ

  51. >>> assert True >>> assert True >>> assert True Traceback

    (most recent call last): File "<stdin>", line 1, in <module> AssertionError >>> assert True

  52. ND-Python (non-deterministic) โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–„โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–„โ–„ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–€โ–€โ–„ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–’โ–’โ–’โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–ˆโ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–€โ–’โ–„โ–„โ–„โ–’โ–‘โ–ˆโ–€โ–€โ–€โ–€โ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–ˆโ–„โ–„โ–ˆโ–‘โ–‘โ–‘โ–ˆ โ–ˆโ–’โ–ˆโ–’โ–„โ–‘โ–€โ–„โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–’โ–’โ–’โ–’โ–’โ–ˆ โ–ˆโ–’โ–ˆโ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆโ–€โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–„โ–€โ–€โ–€โ–„โ–’โ–ˆ โ–‘โ–ˆโ–€โ–„โ–‘โ–ˆโ–„โ–‘โ–ˆโ–€โ–„โ–„โ–‘โ–€โ–‘โ–€โ–€โ–‘โ–„โ–„โ–€โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆ

    โ–‘โ–‘โ–ˆโ–‘โ–‘โ–€โ–„โ–€โ–ˆโ–„โ–„โ–‘โ–ˆโ–€โ–€โ–€โ–„โ–„โ–„โ–„โ–€โ–€โ–ˆโ–€โ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–ˆโ–ˆโ–‘โ–‘โ–€โ–ˆโ–„โ–„โ–„โ–ˆโ–„โ–„โ–ˆโ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–ˆโ–‘โ–‘โ–‘โ–€โ–€โ–„โ–‘โ–ˆโ–‘โ–‘โ–‘โ–ˆโ–‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–ˆโ–„โ–€โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–€โ–„โ–„โ–‘โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–’โ–‘โ–ˆ โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–€โ–„โ–„โ–„โ–„โ–„โ–‘โ–‘โ–‘โ–‘โ–‘โ–ˆ

  53. >>> counter = 0 >>> while True is True: โ€ฆ

    counter += 1 โ€ฆ >>> print(counter) 1820 >>> counter = 0 >>> while True is True: โ€ฆ counter += 1 โ€ฆ >>> print(counter) 803

  54. >>> raise SystemExit ___________________________ /| /| | | ||__|| |

    The End, | / O O\__ Thank You! | / \ | / \ \ | / _ \ \ ---------------------- / |\____\ \ || / | | | |\____/ || / \|_|_|/ | __|| / / \ |____| || / | | /| | --| | | | // | ____ -- | ,* _ | |_|_|_| | \-/ ,*-- _--\ _ \ // | / _ \\ _ // | / / \_ /- | - | | ,* ___ c_c_c_C/ \C_c_c_c____________

  55. Referencias โž” yeti/django-bacon-ipsum โž” jespino/python-master-key โž” jespino/cpython-very-bad-things โž” Playing with

    CPython Objects - Jesรบs Espino, EuroPython 2015

  56. Ayรบdame a cambiar la cara de la salud masculina https://es.movember.com/team/1948045

  57. None