月份：2015年8月

class myClass(object):

    def __init__(self):

        self.foo = 100

myInst = myClass()

print hasattr(myInst, 'foo')

print getattr(myInst, 'foo')

print hasattr(myInst, 'bar')

#print getattr(myInst, 'bar')

print getattr(myInst, 'bar', 'oooops')

setattr(myInst, 'bar', 'my attr')

print getattr(myInst,'bar')

print dir(myInst)

print getattr(myInst,'bar')

delattr(myInst, 'foo')

print dir(myInst)

def simpleGen():

    yield 1

    yield '2--->punch!'

myG = simpleGen()

'''

myG.next()

myG.next()

myG.next() #Exception

'''

for eachItem in simpleGen():

    print eachItem,

print '-----------------------------------------'

from random import randrange

def randGen(aList):

    while len(aList) > 0:

        yield aList.pop(randrange(len(aList)))# Just like list.pop() and random.choice()

for item in randGen(['rock', 'paper', 'scissors']):

    print item

import longmodulename

short = longmodulename

del longmodulename

from cgi import FieldStorage as form

with open('/etc/passwd','r') as f:

    for eachLine in f:

        print eachLine,