Given we've learned how dot notation triggers behaviors, of strings,
of lists, of modules, we now look at our snake's internal __rib__
syntax.
Mnemonic (also legal Python, even if __rib__ isn't really a special name [1]):
class Snake:
"""triggering reflexes..."""
def __rib__(self): pass
def __rib__(self): pass
def __rib__(self): pass
def __rib__(self): pass
def __rib__(self): pass
def __rib__(self): pass
def __rib__(self): pass
def __rib__(self): pass
Both __init__ and __repr__ are special methods, ready for our use.[2]
[1] http://www.dbforums.com/showthread.php?t=407220
[2] http://www.python.org/doc/current/ref/specialnames.html
========
import random
class Secret:
def __init__(self):
self.__hidden = random.randint(0,100)
def guess(self, val):
if val > self.__hidden:
print "too high"
elif val < self.__hidden:
print "too low"
else:
print "You guessed it!"
def __repr__(self):
return 'A secret number'
========
>>> from sillygame import Secret
>>> thesecret = Secret()
>>> thesecret.guess(10)
too low
>>> thesecret.guess(50)
too low
>>> thesecret.guess(75)
too low
>>> thesecret.guess(85)
too low
>>> thesecret.guess(95)
too low
>>> thesecret.guess(100)
too high
>>> thesecret.guess(96)
You guessed it!
===
Good work mom!
Kirby
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